Matt: Maybe I'm all wet here and you're all dry there, but I'm all cornfused looking at the 1958 Aeromodeller article you pulled the plans from. No mention of wingspan in the 3-page article. Ruler to screen gives me a tip-to-tip wingspan of 44" (giver take a mile). I like your 36" much better, yet the article does mention 2.5 to 3.5 cc miils. What think ye - should I just scale the PDF down to 36" and build from that for the KMD 2.5? Or go with the 44" and the KMD?
Lots of Aeromodeler plans for cheap nasty 1.5 & ' big ' 2.5 cc diesels . Half of all there pre 70s stuff , at least .
the Span is at top left above the aeromudler logo box .
A few PEACEMAKER ( the Pommy Version ) TRICKS .
1/. USE RIBLETS , or the cover sags awful like there .
2/. If flying in gusty air , say 3/16 more elevator chord . You can STALL a Peacemaker , the maybe 1/4 extra chord will help it turn BEFOR Terra Firma .
( The big one was toey as heck , with the extra 1/4 . BUT one fine day , blowing a gale , after id removed the extra 1/4 ,
wigover , aproaching the top I thought maybe Id better hit UP Early , Like NOW .
about halfway down , still on the perfect line , I switched to Full Down , whilst I felt the GRAB as I did So . There was no ' second grab ' ( of the elevator Vs Atmosphere .
Every Rib was in three pieces. one way or another . A Entire container of pins required for reassembly . Thus ; those in the know & the wind widen chord.)
3/. Probably a A C L N mentioned useing the 36 in lengths UNCUT artical , which gives around 40 inch span , o.a. . ( a extra rib bay per plan , ea. side . )
4/. ditto . Thicken the airfoil a touch .Rounder L E .
Big One I used plus 3/16 , so 3/32 over the 1/4 Sq Spuce spaRS - WITH SHEAR WEB . this got covering un ridged at the spar .
5/. Kiwi' recon fly better with the rounded L.E. with the riblets , 1 or 2 ea side, ea bay . 1/4 x 1/16 - plank sand to match ribs .
mightve used two a bay ea side on the big one . But thatll look arty & give a smooth consistant airfoil .
Look at any without them , basically diamond airfoil as the covering goes straight , LE to Spar .
That AND the Elevator would be a good combination . The Fuse Sides you get two from a 36 x 3 in sheet , sans canopy . rear to rear .
maybe throw the hinge / moment 1/2 inch further aft , with this. Particularly with the rear Induction K M D Id Think . Even one inch .
1/2 Nose Doubler to spar , as per the Fox 59 sucker there . ( that had a 3/4 shaft. extn. . Id not use that .
Nose Heavy with the big elevator . FINE . No trouble when your 15 , octagonal loops and all . But tests your nerves & steel , if you not with it ,
you wont be . No wheres that aeoplane ? . Sightly touchy , as a understement , may be aplicable . BUT Itll get it to turn or pull up the nose ,
The Wheels good to absorb whoopsie's .
Foam Wing cardborad covered Yin Yan silver swallow at 20 to 22 1/2 Oz , whipped hard for three to five laps , may loop .
18.5 Os with POWERE ( OS Max 20 on No Noitro ) Fully aerobatic if youre carefull ,
but stall , fall off the air , etc . If overcontroled or momentum not maintained .
16.5 Oz , good . Will Fly on 60 ft lines, in calm air , can still be overcontrolled & fall off air . will survive a mild glancing blow.
will teach you energy management & control ' appropriatenous ' etc
14.5 Oz. Bleedy Good , Will survive a glancing blow.
12.5 Oz O A . Bleedy Marvelous .fly like a dream , almost flawless. Will survive a good landing.
10 .5 Oz O.A. see below . !
Hence the recomendation for the four ribs a side , pine t e & Plastic as per FAI Combat , for vigourous useage .
Old OS max 20's were around 5 Oz all up . and BENT Needleva;ves , snapped spraybars , on inverted hits .
The Yin Yan , actually - you whipped three laps , harder for two trying to get altitude , whipped and dived for speed - and tryed a loop .
Wandered to the edge of the field - 45 degree drop off to lower field . Below level loop would pull like blazes , but might not manadge to get back up to level hight again , on a hot day . This is at 20 Oz plus . external controls . Overweight barge .
Heres a picture of a fairly tidy one , flogged from Barton .
imperitive the flap / T E Things go thru fuse & butt together , well adhered . As wings tend to fall off in ABRUPT NOSE DOWN ARRIVAL .
Told a Clear plastic one didnt .
The 10 piece wing , theres a shallow ' V ' ee at the T E center , bound & gled . So wings almost triangulation. Stress ways . On deceleration .
Topic: 15 size model (Read 5016 times)