stunthanger.com
Design => Stunt design => Topic started by: Air Ministry . on June 29, 2016, 06:28:46 AM
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This is based on a tangent to Al Rabes P-51 Articals . Read several times , Digested Anylised and Absorbed !
Later with My MB3 ( Martin Baker )
(https://oldmachinepress.files.wordpress.com/2016/06/martin-baker-mb3-denham-guns.jpg)
This Adhered Strictly to Als Formular . Aerodynamically . Fuse was Formers Planked . Came out at 5 ton ,
or about 71 Oz. ( Sopme Clunker wood here & there , no ' special finishing ' brushed on Humbrol Enamel .
Just come up with ' Like being a pasenger in ( on ) a Speedway Sidecar . Old Analogy was
' Like in a dodge 440 with a stuck throttle in the rain on a skidpan doing a precision driving test '
Great Fun , but hardly relaxing . ( Recreational = geddit )
As his comments were about chopping of his wingtips , we decided to too . Ended Up 50 span , about 20 Oz. Sq. Ft .
Only Change was to sit the pushrod on the inner hole at the elevator . As Expected ( Started with Even Movement )
One wouldve thought this'd all be to much . 65 ft of .018 and a G 51 with a 10 x 6 three blade made it work , though
without the interconnected rudder harsh applicationin the wind in the top of the hourglass or maybe into the clover
could have ' sprinting practise . Immediate . on the agenda for the day . Walking to the field ( warm up ) helpped there .
Tried a 10 x 4 three blade with a 8011 Torp .40 thrown in , to help in the gales . Not the grunt of the 51 , so I grabbed
a G 40 much latter , when one came up . Itching to do another , But Profile . 40 same Dimns , same with ST 40 & 51 ,
or pulled out 20 % ( 60 span ) we cannot decide . The latter would be more practical as a ' big ' comp stunter .
But the attraction of the orriginal was it wouldve blown of Valentino Rossi . No Problem . To Heavy to fly over 5.0 / lap.
usually 4.5 for the wind . Entering Bunts from 45 deg. inverted was a test of faith . But essentially you wondered if it
was flown by computor or if there was a little man inside of it , as ' the bottoms ' were so consistant , considering
the planform , wings and tailplane , were scale .Moments too . shortish nose . carried lead with the Torp. .40 .
This sucker NEVER hit the deck , in 100 odd flights . Id took it back to the wings ) tossed Fuse . Gave them away
wwhen I moved from Wgp . ??? >:(
THEREFORE
We Had MOTIVATION to see the next itteration ? was more butterfly like . wing loadingly .
Thus the P- 51 We Added Span , ( used Scale Planform / outline , iF I recall wright )
Abandoned Full Sheeting of wing , Strived For LIGHTNESS , Tissue Covered and empenage .
simplicity - sheet flaps ( 1/2 Sht .)
Had some good hard 1/4 sht , an offcut , I split end to end , and just got Four Spars , 3/8 tapered to 1/4 , with the grain along them . Nice Firm 1/4 x 1/2 T.E. caps .
Nearly all the rest of the wood IS 4 / 6 Lb , Not My Usual Fare . Normally go for grain and toughness- not soggieness .
ANYWAY , the clipped tips arnt clipped , maybe the Fuse is a bit scrawny , Fins to Tall , I went for a ' H ' ( see the Whittingtons ) will trim of the last bay .
That About Cover it . But I havnt put in a movablew rudder. Dont Like the Extreranal Linkages . Must put it on hinged so I can try it, I suppose . Almost there .
So Its Designed after thoroughly contemplating Al Rabes , but built to a differant concept . More Conventional F2B aerodynamics ( Airfoil ) addap[ed to
the P-51 Airframe .
The Only Real Fancy Trick , is. Ive Dropped the Leading Edge at the Centerline , to get the assymetril / lifting Airfoil through the cenatre bays.
Al's perscription there , approached differantly . My Hurricane it was the T.E. that was dropped . Result is a flatter underside adjacent the fuse , on both .
Emough Drivle for Now.
A Few Pictures of shiney Silver ones , so you can see how the shapes fit together / run into one another . ;D
A Side Shot , shows the kinky underside in the reworked radiator , I Didnt Use . Small Canopy / Fairing going Half Back . Flatter Top Deck Arond / aft cockpit .
(http://i71.photobucket.com/albums/i160/sledge39/SFW_C69-15.jpg)
(http://www.warbirddepot.com/images/wallpapers/4_april09/fighter5_1280ax.jpg)
The Nose .
(http://i71.photobucket.com/albums/i160/sledge39/SFW-C70-16.jpg)
The Wing Tips ( Not Stock P-51 ones here )
(http://www.aviationandspacearts.com/ASAG_Photos/KissingerWF/KJeannieSnoopy1000.gif)
They Give You a fair idea of the canopy too , the fairing here DOESNT run all the way back to the fin .
Getting a bit carried away here ( wanna black'n'Gold sea fury ) Miami 73' http://s126.photobucket.com/user/richbonneau/media/Miami%2073/Top-39_edited-1.jpg.html
(http://i126.photobucket.com/albums/p119/richbonneau/Miami%2073/Top-12_edited-1.jpg)
Same Aeroplane Later , note the Tail Plane is NOT Clipped , another of the reasons we went with this , wont bother to show the Ridiator used at this stage just here .
(http://www.pylon1.org/articles/uploads/jeannie/jeannie_colin-aro_001.jpg)
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Someofem'll be a bit repetitive , as Im just whacking the lot on.
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Used overly light 3 / 32 for the sides , which caused a few bothers .
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Scale Cross Sections . The Rear Sides crease in after the ply doublers , as the fuse is wider under to house the radiator . Or the Fuse Narrows from the Rad. Housing UP .
This is ' Jennie / Miss Candace . No 69 Unlimited Air Racer . The Top Deck was redone through the Canopy area - so flatter top there than a std. P-51 .
Top Block - 1/4 sheet , ready to go on here .
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about 41 in long , here . you can see the 36 in sht join , but its a 3/4 in. beveled lap .
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There its all sanded up , sitting behind a replacement 2 stage merlin spit. replacement fuse . One the tart got . 2 1/2 spinner on the P-51 .
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Ditto.
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OH .
you can see the blotting paper wood ( Needs Seasoning a few years , or kiln drying ) causing GRIEF .
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Aforesaid ' doghouse ' area . The Last Open Bay under is BEHIND the Flap T.E. , where the ' outlet ' will be going .
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We Wont mention the Tail wheel . Will We . ^-^
The Diagonal Line @ the Doubler Top Face is where the top tapers in. Basically a box ( square ) where the PLY is .
Can See its ' strip planked ' there . Beveled Edes at the strip joins . Saves whittling a plug , to Mould the Top Deck .
There was a bit of dithering and prevarication there , as to wether it was to be Miss RJ / Roto Finish / Merlin ' Red Baron ';
which'r all the SAME airframe , No 69 , or a 'D' bubbletop . Have them on paper , went fore the lowest frontal area Trip .
Bar Stilletto - But That Wouldnt Really be a ' P-51 ' to most peoples eyes , for F2B at least .,
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Ply Doublers to helpp spread the load . Thin Ones .
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Looks Like the WING was already BUILT at this stage . Pre 2008 in fact . took a good deal of brushing the dust & filth of . Aforesaid bimbo trashed a mint Top Wood Fuse built then. Bit of luck it wouldve been in the Nats Here Then .
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More of the Same . Canopy is still around 1/8 in oversize here . Had the smallest hood of a P-51 pre skid lid rule - days .
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Got a bit carried away forcing down the top deck Fwd. there . & with the sanding block . Eventually scarfed is a new 1/4 top front , rather that laminating on multitudinous corrections to the initial excessive flatening .
You Can see the Rad / Dog House Drg. there . I think Cummins put a top hose 'H ' Rad. in , but kept buggered around front / intake panels . The Drg. & one Ive Done are more correctly the Later ' Jeannie ' ,
A side view of the 'H ' top hose fitting type Air Scoop set up . Thetre all a bit individual . But Less DEEP and not the CURVE under per stock P-51 .
(http://www.aafo.com/hangartalk/attachment.php?attachmentid=10715&d=1214695247)
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Here Goes that little bit . V Light Wood mostly again . Require Brain Engaged & ' cinerella ' fingers . Tecnically it can hit . One P-51 Did , Got a scoop full of earth whilst NO scratches on the prop , on a lkow pass , hump in the sagebrush.
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We've Decided a COMO 51 Baffled Ringed pdp is going under the hood , in the new fuse .
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You can see what fits in over the hole under the rear , here & how . Gets about 1/4 trimmed of the top , yet .
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3/16 alloy pads under the motor get a bit of hight for tank adjustment . Enough room in the tank bay to feed one of those tooned pipe guzzlers . S?P
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Top View of the Dog House , the ' V ' splitter goes up agaisnt the rear wing underside .
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Stiffer Q grain under the front there /
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Can See where the WING T.E. will be , relaxed and went ' artistic ' doing this part . Thought I may as well take my own good time , and have live the high life , seeing it was a FridayEvening . Most of the filth are at the pubs then .
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One Above you can see how they kept the width for the rad. Mines a notch narrower , wing fillets will cover that , only rear will maybe match . Later .
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Indulging in laminating plywood wrapped arond tubes , and suchlike . Couldnt do the Rear untill the Wing is on , as its all got to fair in there correctly .
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Plethoria of Pictures , The twists & turns of the P-51 nose intake take some emulateing . Another ' play the Artist ' trip . Reading Triumph X75 development stuff . Californians .
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The Fancy Super Tigre Tounge Muffler ( They look to be Ex. Du Bro Ex. Extn. Stock , so replicable . If youve got three lengths of that , its fairly probable .
The masking tapes there to empisise the Cowl Split line . Tryn for easy access , without having to remove needle or spinner if you have to whip the engine out .
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Maintaining something like scale P-51 Panel Split Lines .
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Dissapointed I cant run the exhaust out the scale outlets , but theres a limit if you want a practical aeroplane .
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Im Sure Everybody would like to see a Few More shots of THAT . :##
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oops .o.k. 3/8 in - ft. scale P-51 Plastic Air Race Canopy buck , with the ' 69 ' canopy / fairing on it . Anda Spit where with a R.E. you can duct the Exhaust out the 12 stacks . Or jusat use em to scavenge the Engine Bay .
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' 69 '
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On a FLAP or Two. ;)
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The Control and Udercarrage CHORE seems to be largly dispoed of , at this stage
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Pushrod needs to be kept in close , as the bellcranks hard against the top spar , mounted on the Ply Joiner with a 5/32 Bolt . Leadouts are horizontal . Out tru the bottom of the inner tip .
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youll see Ive only used single wire for the leadouts , its not intended as a knockabout everyday hack .
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oh. oh . can see im getting concerned about nose heavieness by now .
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Wing Sheeted now .
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NEVER reuse a NUT , as on the final tightening when finished , IT'll wipe the smirk of your faCE . n1 Largly as Id accidently used a metric bolt in a 4-400 T nut . Grit the Teeth and CHOP IT OUT . >:( >:( >:( >:(
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THAT looks like a REALLY FLASH Bolt there . DOESNT IT . ! :-X
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Weve Decided artists are Drongos , and we'll show THEM how to do it . at this stage . Fancy Tips on the Full Span Wing .
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The 9th wonder of the world fits in above / on the red marked centerline / pins , there . except its upside down , if youre a bit slow today .
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Thus . Those bits are Ply Wood . Both Surfaces of the joins have recieved a Pre Coating of PVA , to ensure theres No Dry Spots in the connection . So its Fully Connected . Thus STRONGER .
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Score Lines in the 1 / 32 ply are to control the curve , in the finished face , outside . Theyre In . Obviously. You Cant Glue it to AIR . S?P
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Smoother outer face than Id Expexted , no carving through the laminations neccesary with smooth conture . Proceed determinedly but surely , and definately unhurridly . Step by Step By Step . A lot of STEPS in theose Tips .
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Have to find another BEE for the BONNET now . :D
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YOURE NOT BRING THAT INTO MY HOUSE . Borer . Firm but Reasonable . Definately Not Negotiable . Sensable to do em horizontally some time previously . Cant be ;) :## Spotted Then .
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Test Fit . 1/8 dia. flap horns , split. double bushed . C/F pushrod .
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Ditto.
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Rebates / Clearance . in the mainplane T.E. for flap actuate clarance / salignment .
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Prep , 3/32 piano wire pushrod end , for C/Fibre Pushrod .
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Friday Evening , Last . Snowing Outside .
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Showing the wings fairly long . The cellphone pictures arnt shithot when its snowing . Fri Night Actually .
Jigged level , off for a few days , so untouched . Relieved four days later it hadnt been in a earthquake or tidal wave .
Sitting just as I left it .
The Gnawing anxiety was needless .
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All Masked Up to keep the EPOXY out of where it shouldnt . Acetone to KEEP it OFF the Fingers , repeatedly along the way .
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Elevators are just sitting there , theyll go on after covering . Horn'll Get Epoxied to Tailplane First . Pushrods'r in on the Flap Horns , Bind & Epoxy to the Pushrod LATER . Elv Pushrods secued now, and soldered to its horn ,
wouldnt be able to with the Tailplane Fixed . Wot its doing NOW . Curing . Despite the snow, we hope . British Aerospace Biscuit Tins to maintain alignment .
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off cut of my ply moulding experiments , so as rubber bands dont mar the finish . U/C legs hold the swine dead level , laterally . Packer under rear fuse just taking up the nip . All Squareness severally checked -
untill the natural sit is exactly in alignment . BEFORE mixing the glue .
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View Showing the cunning leading edge droop . Or Rise from below center to symetrical a few bays out . . ( its just sitting together there - Its Not REALLY crocked atr the tailplane ) .
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More atempts at artistic evocative photography . !
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We'll skip the rest !. :-X
The Foam car wash things can be usefull , if you dont gettem mixed up with your used ones . :-\
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RIGHT , where were we . EPOXYING the brass thingos ( tounges ? ) over the Brass Bushes in the Elevator Horns , ditto the Flap Pushrods to the
C/F ( main ) Pushrod .
Just lightly ( for me ) glued here . When kicked off itll be bound & Epoxied . TECHNICALLY if you BUILT IT STRAIGHT , just a trim tab would be enough adjustment . So 1/8 Piano wire ( next time ) Horns wouldnt need heat treating to soften . Thoroughly checked aligned neutral before affixing control surfaces tho.
Will get the Rudder on ( a Airfoiled set up , Compostella Airfoil ) Floor the Radiator duct - F'Glass resin its internals , the canopy & dorsal fairings ,
A Few Fillets & the cowl hard edges , The Fuel Filler pipes ( did I say one or two things ? ) and can cover . Finalise rear of cowl , too .
H^^ should have that finished by smoko . LL~
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MEANWHILE ; Back at the Grindstone . !
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1/32 ply diaphram / fuse brace/ Roof or Duct .test fit . Used epoxy on the front ply sides & horn tubes , pva to balsa bulkhead & sides aft .
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Bound & epoxied . Used some fancy new fishingline , Green or tecnicolour ( free )
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Engine Bay / Tank Compartment . resembling a porcupine .
WHAT is the Differance between a Porsche and a Porcupine ?? the pricks are on the outside on a porcupine .
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Debated wether epoxy or PVA for the Fin to fuse. Settled for Epoxy . Hard Post bonds into Ply Doublers .
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THUS . Rudders supposed to be thinner above the fuse , Centerlines lined up & vertical , so will getFine Tooned in the width department & Fairings .
Not Likely to get fillets , here or at the wing. Would look GROT under a tissue Finish ( No Paint . unless you struck it spot on . I suppose thats a
Challenge . :(
Useing a Airfoiled Fin / rudder , I believe if you get these right , Greater Load increases the tension when required . And in a Hard Corner -
its Slicing INTO the air , on Outboard square corners . when required.
and out of the air , on inboard square corners , when not so required .
With say a 3/32 L.E. Rad , on the centerline , Post symetrical on centerline , and outboard side FLAT behind the L.E. rad , you get a reasonable airfoil.
Compostellas TANGO plan has a Apporopriate section , as its the scheme he has Used .
Besides , Id want a inboard ( internal ) mech. if I fitted als rudder . A sliding ( fore & aft ) horizontal plate with a groove for a downturned End
on a wire Fwd. from the rudder would give customiseable offset . IF YOU HAD A ACCES HATCH , to change rudder ' cam plates ' .
Not Unlike a Triump E.T. camplate in the 4 / 5 speed . but linear & one curve . A stick wire down from the elevator horn would shift it fore & aft .
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We'll pass this off as modern art. If you can figure out what it is , let me know . ( I figure the camera went of accidently ) ( once or twice :-X)
this da*# computor Corrests your ENGLISH spelling , if its not American .
The European Commission has announced an agreement whereby English will be the official language of the EU, rather than German, which was the other contender. Her Majesty's Government conceded that English spelling had room for improvement and has therefore accepted a five-year phasing in of "Euro-English".
In the first year, "s" will replace the soft "c". Sertainly, this will make sivil servants jump for joy. The hard "c" will be dropped in favour of the "k", Which should klear up some konfusion and allow one key less on keyboards.
There will be growing publik enthusiasm in the sekond year, when the troublesome "ph" will be replaced with "f", making words like "fotograf" 20% shorter.
In the third year, publik akseptanse of the new spelling kan be expekted to reach the stage where more komplikated changes are possible. Governments will enkourage the removal of double letters which have always ben a deterent to akurate speling. Also, al wil agre that the horible mes of the silent "e" is disgrasful.
By the fourth yer, peopl wil be reseptiv to steps such as replasing "th" with "z" and "w" with "v".
During ze fifz yer, ze unesesary "o" kan be dropd from vords kontaining "ou" and similar changes vud of kors be aplid to ozer kombinations of leters. After zis fifz yer, ve vil hav a reli sensibl riten styl. Zer vil be no mor trubls or difikultis and everivun vil find it ezi to understand ech ozer. ZE DREM VIL FINALI COM TRU!
Herr Schmidt
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In the Untidy States now , but roamed N.Z. in my pre school days , Civil P-51 paint scheme - You can see the Rad. is a bit blousier than the Race one.
(http://www.geraldlindberg.com/uploads/2/8/4/1/28413585/587862_orig.jpg)
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Latest burning of the midnight oil , just a general view , of the ' too doo ' , Cowl , root fairings , and canopy / strake .
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Therudder missing . Fate seems it shouldnt be there yet . Got it nicely faired in , then the PVA let go ( still damp .) Just as well .
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The Aiming Point .
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Inside the Duct , from the front .
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Fairings to Roots will go aft to hide the width differance as the doghouse is narrower than the fuse , as Ive done it .
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Coated the insides with ' finishing epoxy ' over a few coats of dope , and taped down to fix in place . Bit of detail aft to finish there .
Sides sanded in flush as required - but a little filler needed along join aft of fillet fairings .
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The THING .
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Elevator root Fairings .
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Flap root Fairings .Built up 3/32 & 2 mm sheet . Sand a bit of a curve in . Gotta the Micro Ballons , so'll get smoothed into the fuse , microscopically ! .
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Nailing IT down .
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Just the !*^#- COWL to Finish , & the little strakes to the L.E. for the Fillets to fix to & fair into the Cowl . AND the Air Vents / Baffle / fastener .
Then 5.000 years of sanding, Im Told . Got three cans of Goldberg spray , 2 silver , 1 red . El Cheapo - runout . STILL Dunno if itll get ' the paint treatment ' . Still Prefer Tissue Trim . New Scalple Blade & cut a few stripes & numbers . Besides - if a bay gets split - painted . Its el finito. >:( :(
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2/10th of 5/8th of stuff all done , but w t h , make a mould for the lower cowl rear & Laminate ply , Drilled Alumn outlets , rear inner doghouse duct fairings , and one or two wheel bits , maybe .
This is so the Fillets ( gotta some microballons ) can be something like continuous , sides therell be trimmed curved maybe . Following it .
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Wunderbah .
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MEANWHILE , back at the Grindstone , . . .
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Fuselage is Two Layers of medium silkspan . Sprayed the whole kaboodle with dope / talc , Fuse aint sanded yet there . Wings Are Modelspan ? blitish Tissue .
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Weight Bare there , No Spinner - is 37 1/2 with the cowl , So Has picked up naff all , Sanded as much as I dared . Cant Stand wobbley leading edges over the ribs ,
so didnt get to carried away . Mainly flatting off and dressing in lumps / irregularities . Cool Here , suns only reliable middle of the day up here just now . Sundown
and the condensation level immediatly gets condensatey . >:(
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As the spray bottle packed up , I did the tissue ' DAMP ' with a sponge - on the bench , semi pre cut to size . Bottled water as I had some , in a bowl . Inside UP .
Thin Dope to adhere . When Dry used that ( not THAT thin ;) ) on the open bays , but left edges undone , so it wouldnt eeak thru .
Stern Contemplations :P had the Gallon Tin out ( carefully ) and unthinned brushed on the whole open bay & over the edges , next .
The Theory is the thicker dope dosnt go thru the tissue , forming gobs & runs under it , or SEAMS down the cap strip & Sheet Edges ,
WHEREBY it'd pull the tisue down there as it drys/ shrinks , causing lines & whelts in the surface . So they tell me ( MAGAZINES ) .
Seems to be smooth so far . Two Unthinned coats across the open bays . Next steps a few sprayed . Think I will leave out the Talc Coat later , :-\
REACH for the SKY . ;D H^^
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One More in the name of ART . S?P
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Whittling away at the chores , something like patiantly. At Times. ;D
Last Nights efforts . These are 3/8 dia. aluminum .( >:( it says 5 or 7 grammes ) need the rear face dressing flat , with the pipes drooped down .
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Opened Up the Rad / Doghouse , as the undersided gone concave , there .
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Gave us a chance to sand it a little more , and get another coat of resin in there .
Closed Up , picture this morning . Outlet weighs about 7 grammes . Bit more dirable than timber , and less fuss , though . ;D
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FINALLY got the fillets on a few days back , epoxy / microballons .
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AHA , thhhhheres the Change of X section IN the duct . Thus the Air Out is a differant configuration to the Air In .
Thus the wake is not as the airflow , so can act as stabiliseation to a degree . thats the theory anyway , lacking a tuned pipe
or Ex Extn to throw that out there and pretend its spray bar rad. coolant ! LL~
Flap Horn posn Just Discernable in there at the T E . ( wgere else VD~)
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Rear of Cowl area , gotta dothe rear of the cowl , yet , actually . >:(
But thisis how it fairs in and where itll fit , We Hope . ;D LL~
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Plan View .
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Other Way, Im Just Standing on the Fence. or Stone Wall . :##
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Down Under , or under upper , um . Top view of Bottom . :-\
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Avei Verderchi .
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Side rear aft under.
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On the Nose .
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Fish & Chips ? .
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Half the news wrapped there , Dont believe anything you read in the Newspapers , least 90 % of what you believe is Lies . a Better use here ! . ;)
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:-\
red tissue stripes , thinner then thinned dope . fins 12 mm Stab 15 odd wide strips .
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Actually made the jump to resemble the real thing , now . Makes the abscence of the fuselage numbers and nomenclature conspicuous. >:(
Rear Cowl , Tank & fittings , Lower Gear & gear doors , and Er the Tailwheel assy , to go . >:( Al Rabes Video shows him putting in the
tail wheel mount AFTER completeing the fuselage ;D , which I think is a good idea . At this stage of the proceedings , at least . LL~ .
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Plane is looking really cool. Just a thought, you might want to make a move from here now over to the Paint and Finishing section?
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Sadly , my paint is Acrylic Lacquer wheel paint - silver . The Dope ( from Aus. ) aintatall glossy . Sig Dope is 4 50 a QUART here ! >:( :o :P
& FINISHING is when youve finished putting in the tank & engine !
Somewhat discouraged , the next ones definately coloured tissue & NOT ten coats of Dope in One Day ! . ;D
Outside that my advise there would be sand infinately , which is where the discouragement is induced .
150 Wt sandpaper is the fineest I find Sands , Therefore under ' Rough'n'Ready ' would be more the line as far as FINISH is concerned . H^^
p.s. looks like itll be 60 Oz . :( o.k. but 55'd be happier . G 51 up my sleve if theres ' inadequacies , or the OS / Magnum FSRs or Irvine 40 RE amougst otheres , will bolt in .
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RIGHt , the ' Clear ' is on . Two Pot ' NOR ' something polyurethane . And on a few other things . :## Not t many sandflys etc in it , yet. we Hope .
the Cell Phone / Camera got a trifle damp ( some people might say it fell in the water bucket ) and seeme Kaput . So No Pictures for now .
Might drag it out saturday , as ' nearly 110 Hrs , to fully cure .Tossing up on the ' Known ' G-51 or the Como . Will take em both down . Same Mount .
a FSr's go in too . Any Impertanace and the G 51 will haul ass , as theres a comp on Snday . If I Go . :-\
Wheels / Lower Legs ( Still the tail wheel set up :-[) Tank , rear cowl & a finalish Canopy TO GO .Will Weighem Again when Dry . Was looking like 61 Oz .
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WELL , First Few Tanks yesterday .
Full Schedule plus a few extra hourglasses & clovers , on first two tanks .
A 11 x 5 Rev Up wood , Whittle stock ST muffler - carved all the fins off & cut away the parrallel outlet ' pipe ' , like one I got , so saved a ounce ish .
Good Tracking , No Bounce or wobble . Grooves & responds well . Tracks Well & pretty steady on the lines .
Used it @ 68 ft odd of the .018 seven strand .
Motor Run was a little inconsistant , till I fitted the Tounge Muffler & a filter . Then it was hopeless - No Needle . A few turns should do something !
Inveted Cut , another bash - Turning to tight on to little handle , but not as tight as on more control , thus not as good .
Id put the tank in on syrofoam & packer . Finished @ 4 am !#* :P no sleep , one Hr Drive . So Glad to ' take it easy ' .
Back at the Shed , the tank had ' picked up a rattle - dunno if it was from when I cleared the uni Pipe with a Ram Rod . Was a few mild goobers
in the remaining fuel . Run was 7:00 a touch lean on the first two , one lap lean to cut , with tank angled n tapered nose .
Baffled V edge 140 ?? cc , 11 mm pick up to rear & uni to pick up . Id filed a V in the Uni to snug the bore to the feed OD , for Min Offset .
Engine I'll drill fore matching ( ST 51 Dimn. Case Spraybar venturi , And ' in line ' the tank to that .
The COMOs dont seem to like swinging the lumber ( a 21/40 will handle a 12x6 unmuffled , even if it burns twice the fuel to do it , on NO NITRO.
Was using 10/10/10/ 70 ( I think )
Bleedy oil everywhere , after flight . Ive Tweaked a Merco Muffler . same Wt. 1.3 Oz as the Shaved ST one . Offset opposite so OVER the wing rather than dead center and oil Top'n bottom.
Plus its way more streamlined , Think the blunt nose ST with the weight inBd. holds the nose in a touch , into ' up ' manouvres , we shall see if
its still light/ hesitant as in Gyro Yaw there on occasion . Leading @ the handle obiviates that. Most Ships similar . See4ms to be the ' P ' factor .
Which I think only occurs under positive incedance relitive to flight path .
Take Offs as good as any . No tendacy to weave close to ( the deck ) .
Landing , :-\ Once She's down to about the ' hot bring it in ' speed , about 39 + Kts , she transitions to Three Point attitude , and kicks down
to about a 20 Kt floating glide . So ' A Transition ' there , where you think itll fall out of the sky with the speed reduction , but floats on for a Quater Lap . A light ' Skip ' and shes down , rollinf @ Three Point , If she had a Tail Wheel ( Um , thart got left out, so far )
Canopy is a no good enough one on with PVA , much of which came of with the masking tape , Thought it'd ' get lost ' But its Still on the Ship .
So , A ' dont touch anything ' part from a fine tune in the engine bay . Also Im going to drill 4 vents a side into the front Ex Pipe ' extractors '
for a bit of flow through ( thu ) a Engine Mt Lug Level . Warm down there ( the big smoke ) .
In the Genisis the Other Como 51 neddles on a 11 x5 buts dead on a 12 x5 , Tho ( Though :-X) I vill try my 11 x 4 four blader .
Thinking theyre a ' 4 in pitch ' motor unless the cylinder timings lowered , as its 150 something .
flow Thru in the duct , can ' tape up ' to cross check any ' influances ' .
Cowl I'll regut Rear a ' V ' deflctor I think Flows Less than ' pressure cusioned ' straight out , the sides set up .
will try little drilled outlet covers , scale . on There . Some P 51s seem to have larger holes in the four rows
just aft of the lower angled cowl split Fwd , Where they come out !
Think I need a light plastic tail wheel and Its 16 g wire there, ( 0.0625 in. )
Well Pleased . think Itd be ideal for a good advanced & expert flyer . but its early days yet .
Need to get the motor run / airspeed ' locked in' and Go with the 70 ft 014 or 016 solids .
Must get a bucket of sawdust to get away from to oily hand slippy grippy trip / When the handle Wants to stay on your fingers its a big help .
Definately a fingers @ ends of Grip Trip rather than throttle it , responce . Requires refined delicate handling S?P rather than bludgeoning . H^^
See if I can get it on filim next time out . 9/10 with -2 for the missing 1/10 th . ;) :)
Full Schedule plus a few extra hourglasses & clovers , on first two tanks .
A 11 x 5 Rev Up wood , Whittle stock ST muffler - carved all the fins off & cut away the parrallel outlet ' pipe ' , like one I got , so saved a ounce ish .
Good Tracking , No Bounce or wobble . Grooves & responds well . Tracks Well & pretty steady on the lines .
Used it @ 68 ft odd of the .018 seven strand .
Motor Run was a little inconsistant , till I fitted the Tounge Muffler & a filter . Then it was hopeless - No Needle . A few turns should do something !
Inveted Cut , another bash - Turning to tight on to little handle , but not as tight as on more control , thus not as good .
Id put the tank in on syrofoam & packer . Finished @ 4 am !#* :P no sleep , one Hr Drive . So Glad to ' take it easy ' .
Back at the Shed , the tank had ' picked up a rattle - dunno if it was from when I cleared the uni Pipe with a Ram Rod . Was a few mild goobers
in the remaining fuel . Run was 7:00 a touch lean on the first two , one lap lean to cut , with tank angled n tapered nose .
Baffled V edge 140 ?? cc , 11 mm pick up to rear & uni to pick up . Id filed a V in the Uni to snug the bore to the feed OD , for Min Offset .
Engine I'll drill fore matching ( ST 51 Dimn. Case Spraybar venturi , And ' in line ' the tank to that .
The COMOs dont seem to like swinging the lumber ( a 21/40 will handle a 12x6 unmuffled , even if it burns twice the fuel to do it , on NO NITRO.
Was using 10/10/10/ 70 ( I think )
Bleedy oil everywhere , after flight . Ive Tweaked a Merco Muffler . same Wt. 1.3 Oz as the Shaved ST one . Offset opposite so OVER the wing rather than dead center and oil Top'n bottom.
Plus its way more streamlined , Think the blunt nose ST with the weight inBd. holds the nose in a touch , into ' up ' manouvres , we shall see if
its still light/ hesitant as in Gyro Yaw there on occasion . Leading @ the handle obiviates that. Most Ships similar . See4ms to be the ' P ' factor .
Which I think only occurs under positive incedance relitive to flight path .
Take Offs as good as any . No tendacy to weave close to ( the deck ) .
Landing , :-\ Once She's down to about the ' hot bring it in ' speed , about 39 + Kts , she transitions to Three Point attitude , and kicks down
to about a 20 Kt floating glide . So ' A Transition ' there , where you think itll fall out of the sky with the speed reduction , but floats on for a Quater Lap . A light ' Skip ' and shes down , rollinf @ Three Point , If she had a Tail Wheel ( Um , thart got left out, so far )
Canopy is a no good enough one on with PVA , much of which came of with the masking tape , Thought it'd ' get lost ' But its Still on the Ship .
So , A ' dont touch anything ' part from a fine tune in the engine bay . Also Im going to drill 4 vents a side into the front Ex Pipe ' extractors '
for a bit of flow through ( thu ) a Engine Mt Lug Level . Warm down there ( the big smoke ) .
In the Genisis the Other Como 51 neddles on a 11 x5 buts dead on a 12 x5 , Tho ( Though :-X) I vill try my 11 x 4 four blader .
Thinking theyre a ' 4 in pitch ' motor unless the cylinder timings lowered , as its 150 something .
flow Thru in the duct , can ' tape up ' to cross check any ' influances ' .
Cowl I'll regut Rear a ' V ' deflctor I think Flows Less than ' pressure cusioned ' straight out , the sides set up .
will try little drilled outlet covers , scale . on There . Some P 51s seem to have larger holes in the four rows
just aft of the lower angled cowl split Fwd , Where they come out !
Think I need a light plastic tail wheel and Its 16 g wire there, ( 0.0625 in. )
Well Pleased . think Itd be ideal for a good advanced & expert flyer . but its early days yet .
Need to get the motor run / airspeed ' locked in' and Go with the 70 ft 014 or 016 solids .
Must get a bucket of sawdust to get away from to oily hand slippy grippy trip / When the handle Wants to stay on your fingers its a big help .
Definately a fingers @ ends of Grip Trip rather than throttle it , responce . Requires refined delicate handling S?P rather than bludgeoning . H^^
See if I can get it on filim next time out . 9/10 with -2 for the missing 1/10 th . ;) :)
Listen Very Carefully. I will say this Only Once .
https://www.youtube.com/watch?v=N_7sRW1-5As&list=PLzovi87vDfzKh8NS04TU0eLYKJzIw3TpS
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Right ; theres one or two cameras in ' the Big Smoke ' ( Sydney ). Lousey Day , Rotten Air . Two ' off ' runs ' . Getting P#*^ off . Will Hold on the G-51 Till ive Tryed a 12 x 4 & a 11 x 5 .
Other Como 51 in the Genisis wouldnt needle well till on the 11 x 5 . Ive bored a intake to .300 . May try my 11 x 4 4 blade , too . Seems to want to be ' on the boil ' .
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You can see you cant afford shoes if you spend all your money on model aircraft . :-X
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The supplies advice on the poly 2 pot I think applied to Floors or Boats . Have a bit of ' Rubbing Back ' to do . Got a couple of runs aft , after Id fiddled with the other screw thing . :(
and the advised second coat means there several ton on , so about 66 Oz. >:( Will have to rub back a ounce or three , and orgaize some ZZZZZS , up about 30 Hrs There . :P
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Debateing wether to murder the photograper .
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Said Chap . Obviously a Hare Crishner ( VD~) Cant see he hasnt got shoes as he is hiding his feet there .
Knacktually Liscenced Aircraft Engineer , But Turning wheels on Trains , and succhlike , nowadays .
When he is not purloining Genisises . >:(
Will tryn'n gettim to gettit on The Moving Pictures Film , and putton U Tube , needan account there . They say .
UPDATE , 23RD 12TH , nailed the G-51 in it .for the moment . +5 mm spinner gap . :( no excuses now & itll swing anything Id care to try . Wondring if itll over rev / be to slow on a 11 x 4 Four blade . We Shall see . !
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A THING in the thing that WORKS as a Phone , apart from the Battery , the reception . And ' things ' you get on it when it DOES work . ???
dunno how these got here ( Trying to find pictures I just too ) But good P 51 Cowling details - so some use to someone , perhaps . If I press enough things I MIGHT find my photos . ???
Wheel Wells / Undercarrage doors show up too . And the ' Spinner Backplate . If I get done a ' Custom ' one for the G -51 , with the shaft longer now , will actually match full size better .
perhaps .As in the Prop is not Right at the Back of the Spinner Assy. Full Size .
Looking through the thing and comparing to a A43 plan of Als P 51 I downloaded , Ive Got the Same Size Wheels & Spinner . At the end of the day , this things more elongated ,
scale planform , and dont need moulded fuselage shells . Requires the same attention to detail regarding WEIGHT tho . Pity the initial Fuse got trashed . Wood was A1+ .
AND it coulda been airbourne early 2009 ! Realised the G 51 wontve been run since 2005 . This is totally APALLING . Need to be with a Flying Field ADJACENT . NOT a hour and a halfs drive .
Particularly if you forget something . LL~ LL~ S?P. Bak to attempting to extract photos .
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x
If you cant join em , beat em . Known Powerplant . Better put my money where my mouth is . dont Want To be messing with the plane ( They say its called trimming ) AND the motor at the same time . So its in . One or two drawbacks .
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y
Weight Diff was 1/4 or 1/2 Oz , from the Como . Or was it 1/10 I think . Toungue will go on if I want C G Aft . Custom Backlate ( or A LATHE ) Reqd. Maybe theyll be one on someones front lawn theyre throwing out . :!
Bewildering Variety of props to suit this , figuring around 4 1/2 pitch . 2 3 & 4 Bladers await trials .
(https://static.rcgroups.net/forums/attachments/1/9/6/3/7/9/a9631444-171-PC240648.jpg)
looks like ive dipped out , as far as This Goes . a 2 1/2 Veco . Be a match for a Miss R J etc , variations ad infiniteum . Bother .
Looks like its inadvertantly optimised , with the external air down the head / case joint crevas at the sides , there . Hopefully .
Same Width opening , lengthened @ rear with corners altered from diameters radius . :) LL~
NOW im wondring about pulling the motor back 5 mm , or could FSR it , as Contemplated at Drawing Stage . Built Light a good .46'd swing it . Most of the Lumbers my usual 7 - 11 Lb Cu Ft Stuff . Has 3 Oz Excess clear, at the moment .
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!#*^ another camera. Again . Will see if THIS works ! ( mind the bucket :-X)
Highlighting the MERCO Muffler fitted , the grot finish ( The Two Pot Finishing Epoxy I threw on the resprayed cowl needs more than 24 Hrs before you pour fuel on it . If the Feed Line Splits at the pipe .)
and a ALUMINUM no less bicycle nipple on the bicycle spoke cowl fastener , untightened . If I take the pics in the dark ( Garadge ) its just under the limit . The Sun seems to enhance the pixies quantities .
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Bit of a brain at half mast flight , begins around 2:00 / 2:20 . Didnt prime the sucker . Not entirely distracted All the Time , so you can get a bit of an idea how it flys , anyway .
https://www.youtube.com/watch?v=eECZAMVHJBk