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Author Topic: P51 B  (Read 33080 times)

Offline JIM Nordin

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P51 B
« on: March 31, 2015, 09:56:39 PM »
Outer zone has Al Rabe mustang plans . with a  little work it could be turned into the B/C model   . It would be a great. Build for next winter !

Jim

Offline Dennis Toth

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Re: P51 B
« Reply #1 on: April 02, 2015, 05:02:28 PM »
Jim,
Is there a typo? Did you mean turn the Al Rabe Mustang into and R/C model? The questions is what advantage do you thing you will have taking a stunt ship with coupled flaps/elevator and changing it to ailerons with elevator and rudder? Seems there are several R/C kits set to go without all the work?

Best,       DennisT

Offline Gordon Tarbell

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Re: P51 B
« Reply #2 on: April 02, 2015, 05:27:32 PM »
I think he was referring to early model P-51 B's and model C's that had a framed in greenhouse style canopy instead of the" D" style bubble canopy. Very different looking plane.  Similar to the P 47 "razor back" from republic.
Gordon Tarbell AMA 15019

Offline JIM Nordin

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Re: P51 B
« Reply #3 on: April 02, 2015, 10:42:21 PM »
I'm kicking around the idea of a P51 B stunt control,line ship, and useing Al rabe mustang as reference For one. The B/C mustangs had a turtle deck like the P47 Razor back

Jim

Offline JIM Nordin

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Re: P51 B
« Reply #4 on: April 02, 2015, 10:51:20 PM »
Similar to this but for control line

Offline Tim Wescott

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Re: P51 B
« Reply #5 on: April 02, 2015, 11:30:23 PM »
I think the razorbacks are better looking airplanes in general.  Presumably the designers did, too.  Enemy pilots probably thought they were nifty as well.
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Offline JIM Nordin

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Re: P51 B
« Reply #6 on: April 02, 2015, 11:55:51 PM »
I,prefer the B over the D. The picture I,posted was a model I designed and built about 15 years ago 

Offline Trostle

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Re: P51 B
« Reply #7 on: April 03, 2015, 01:18:34 AM »
There have been several semi-scale stunt P-51 B models published.

Flying Models, August 1970 by Joe Berry. This is a Fox 35 sized ship done in the style that Jack Sheeks would do.

Flying Models, February 1975 by Jim Vornholt.  This one had an ST 60 and wos don in the style influenced by Al Rabe, like with a deeper and wider fuselage.

Aeromodeller, March 65 by Erik Bjornwall.  For a .35.  Sort of like a Nobler with a P-51B fuselage.  Smallish flaps, thin airfoil.

Bill Rutherford did a really nice P-51B and placed well with it at the nats in the 90's.  I thought it was published in one of the magazines, but I cannot find it in my library.  This was inspired by Al Rabe.  It would have had a .46 or maybe a 60.  If plans can be found, it would be a good one.

Keith

Offline Avaiojet

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Re: P51 B
« Reply #8 on: April 03, 2015, 07:45:30 AM »
Jim,

I see you are a new member, welcome!

I see you're not new to modeling.  H^^

Nice P-51D and nice detailing. Not a small model either.

I have this old kit of a P-51 D, 43" in span, House of Balsa.

I've always thought of building a stunt model out of this kit, seeing I'm no longer in R/C.

The B could be a choice if I could find a color scheme to pull me in that direction.

If you elect to take that P-51B project on, I hope you would do a build. I could use the inspiration.

Really nice P-51! 



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Offline JIM Nordin

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Re: P51 B
« Reply #9 on: April 03, 2015, 03:15:22 PM »
I'm kicking around the idea of a foam glass bird . The fuse probly carbon fiber  . Not traditional . But I always thought outside the Box

Offline Avaiojet

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Re: P51 B
« Reply #10 on: April 03, 2015, 04:01:23 PM »
I'm kicking around the idea of a foam glass bird . The fuse probly carbon fiber  . Not traditional . But I always thought outside the Box

Jim,

There's this modeler, first class actually, who builds models without balsa. No, not a joke, he really does.

Blue foam and finished in glass. I believe he used glass? Anyway, the model was outstanding! There are photos and some descriptive text somewhere in this SH Forum.

Someone will know where to look.

Absolutely worth looking into if your considering using foam and some covering material.

Good luck.
Trump Derangement Syndrome. TDS. 
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Amazing how ignorance can get in the way of the learning process.
If you're Trolled, you know you're doing something right.  Alpha Mike Foxtrot. "No one has ever made a difference by being like everyone else."  Marcus Cordeiro, The "Mark of Excellence," you will not be forgotten. "No amount of evidence will ever persuade an idiot."- Mark Twain. I look at the Forum as a place to contribute and make friends, some view it as a Realm where they could be King.   Proverb 11.9  "With his mouth the Godless destroys his neighbor..."  "Perhaps the greatest challenge in modeling is to build a competitive control line stunter that looks like a real airplane." David McCellan, 1980.

Offline JIM Nordin

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Re: P51 B
« Reply #11 on: April 03, 2015, 04:47:45 PM »
Thanks Bud. The model,I,posted above was built useing blue foam what they call lost foam technique. Basically  you shape the fuse with blue foam then pour in a solvent to desolbe the blue foam . I'll do that first .

I'm looking between 55 in. To 60 inch ann50 + oz.  a KB 60 for power

Offline rustler

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Re: P51 B
« Reply #12 on: April 04, 2015, 01:02:11 PM »
Many moons ago I sent copies of the Aeromodeller Plans Service Mustang by Eric Bjornwall, to someone in PAMPA. They detailed the bubble canopy P51 conversion which Eric made to his design, and the APS version is the razorback type.
Eric kindly gave permission for PAMPA to make his design available, but nothing ever came of it.
Ian Russell.
[I can remember the schedule o.k., the problem is remembering what was the last manoeuvre I just flew!].

Offline Dan McEntee

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Re: P51 B
« Reply #13 on: April 05, 2015, 07:53:02 PM »
  Todd Lee did a P-51B that was sorta based on the SIG Magnum, with a lowered wing and some dihedral added. Got him to a place on the FAI Team and a 13th place in the World Championships. I think he called it Magnum Opus and was a very nice looking airplane in the air and on the ground. I have always wanted to do one as the Paul Mantz number 46 Bendix Racer. Just a personal favorite.
  Type at you later,
   Dan McEntee
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Offline Dan McEntee

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Re: P51 B
« Reply #14 on: April 05, 2015, 08:00:25 PM »
I think he was referring to early model P-51 B's and model C's that had a framed in greenhouse style canopy instead of the" D" style bubble canopy. Very different looking plane.  Similar to the P 47 "razor back" from republic.

  There was a "C" version of both the razor back and bubble canopy P-51's. I have books with photos of both. The early bubble canopy samples had no dorsal fin to the vertical stab and this affected yaw stability. The dorsal was a field modification on these and some B models. Been a long time since I read up on it but I don't think there were many produced and the D model took over. The B and A models were faster at sea level than the D but that wasn't what they were looking for at the time.
  Type at you later,
   Dan McEntee
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Offline Air Ministry .

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Re: P51 B
« Reply #15 on: April 05, 2015, 08:45:31 PM »
Will tryn throw some pictures of one im building on ,



cept mines this ;



unless its RNZAF .



 H^^





Offline Air Ministry .

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Re: P51 B
« Reply #17 on: April 06, 2015, 07:25:16 PM »
Sorry to waste so much paper . I cant yell at the coputor so it wont do as its told .  >:( ;D


Offline Air Ministry .

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Re: P51 B
« Reply #18 on: April 06, 2015, 07:26:32 PM »


UGLY bit on the nose top is where I sat the top sheet a notch low  :-[ so faired in a filler .  n1
« Last Edit: April 06, 2015, 07:50:44 PM by Matt Spencer »

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Re: P51 B
« Reply #19 on: April 06, 2015, 07:28:28 PM »


thrown together . tail Plane will sit a inch & a half or so further fwd. ( there pen marks for L E . )
spinners 2 1/2 O.A. widths  3 1/4 or some such ( 3 5/8 or is it 3 3/8 or was it  ??? )

Er 36 mm + 14 mm ( twice ) plus 1 /16 + 3 32 twice is er 71 um now thats three minus 3 / 16 SO ,
there in the parrallel NOSE section - back to the doubler cut line . Now we Know .
« Last Edit: April 06, 2015, 07:56:09 PM by Matt Spencer »

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Re: P51 B
« Reply #20 on: April 06, 2015, 07:29:14 PM »


The Highly Scientific fuselage jig .  :-X

Top View , the ply doubler runs another bay aft at that angle .

CLICK on the pictures and they come up big and ugly .
If they dont stay here i will jump off the bridge ,
as its two hours on the train to the Big City to
throw them in the works .
« Last Edit: April 06, 2015, 07:58:41 PM by Matt Spencer »

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Re: P51 B
« Reply #21 on: April 06, 2015, 07:34:25 PM »


Radiator ( Dog House ) area . 1/8" sheet angled sides & floor ( aft. fuse. ) The intake assembly goes under the opening , forward to under the aft off wing .

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Re: P51 B
« Reply #22 on: April 06, 2015, 07:39:33 PM »


Tail plane / emenjage area . ( top rear fuse . )

I used some hideous competition 3 / 32 ' fuse. sides , so added 1 / 32 " ply doublers
under the stab & through . So it doesnt fall off . still undecided if I should use theis fuse,
or another , and another for a RB 51 & another for another . this would mean another two or three wings ,
as Id have to use this also  >:( , so Id better just use this or I'll be here till Christmass
and wont have got anything else built . Let alonne anywhere to put it .  :-\ :P :(

Offline Air Ministry .

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Re: P51 B
« Reply #23 on: April 06, 2015, 07:40:16 PM »


Thats it in the back there , the others are from three foot sheet . you can see the join lines for the 3' sheet on the front off the P 51 , so it makes it about 3'5" .
earlyer one was a notch longer , to save noseweight with a 40 FSRS .

Sides are 3 / 32 (or 1/8 ) fly doublers are to the ' crease line ' ( to capture correct conture ) thre runs off 1/8 x 1/2 odd over the sides , trim to cut line after set .
then a 1/4 sht. top let in between the top sides on a vertical cut . Tip Ribs are about 60 in apart ( measured em last night ) so thereabouts is the span , could loose
a bay , or not . Cunning center airfoils lifting Fwd. of the spar - the L E drops to the fuse . Needs a bit off work yet  >:( Want to dope the wing sheeting before fitting
hopefully it wont need sanding & go all awry . Built up tissued empenage . 1/2 sheet flaps . Actually a COMO 51 pdp , but the G 51 'll drop in o.k. and turn two 11 x 5s .

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Re: P51 B
« Reply #24 on: April 06, 2015, 09:37:03 PM »
A few more stunning shots of tenique of conture .


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Re: P51 B
« Reply #25 on: April 06, 2015, 09:43:33 PM »


This is In the JIG . Shows up quite a few things , so click to enlarge it .

Offline Steve_Pollock

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Re: P51 B
« Reply #26 on: April 18, 2015, 12:05:50 PM »
Race 7 (Beguine) had been modified for the National Air Races to remove the coolers underneath the fuselage of the P-51C.  The coolers were moved to the wing tips; glycol engine coolant in one, and oil in the other.  These changes made the plane fast (it won the SOHIO race in 1949) but unstable in roll.  In the 1949 Cleveland pylon race, it rolled out of control and crashed into a home, killing pilot Bill Odom and two members of the Laird family.  The National Air Races were subsequently cancelled in Cleveland, not to resume until the '60s at Reno Stead Air Base [ http://www.air-racing-history.com/aircraft/Beguine.htm ]

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Re: P51 B
« Reply #27 on: April 20, 2015, 10:59:01 PM »


The aeromuddler Bjon whatsit ' Mustunt ' Mustang's wing is about 1 / 7/8 " at the center . Having put 5 or ten gallons thru one ,
I ' feel ' it aint to bad. Though it was on my F4E Phantom . The MUSTUNT wing , moments & Areas !

Offline jim gilmore

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Re: P51 B
« Reply #28 on: April 21, 2015, 01:05:43 AM »
wonder what that mustunt looks like compared to al rabes mustunt I,II,and III

Offline beercamel

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Re: P51 B
« Reply #29 on: April 21, 2015, 05:40:39 PM »
  There was a "C" version of both the razor back and bubble canopy P-51's. I have books with photos of both. The early bubble canopy samples had no dorsal fin to the vertical stab and this affected yaw stability. The dorsal was a field modification on these and some B models. Been a long time since I read up on it but I don't think there were many produced and the D model took over. The B and A models were faster at sea level than the D but that wasn't what they were looking for at the time.
  Type at you later,
   Dan McEntee

P-51B's and P-51C's where identical aircraft in their respective 'Block Numbers'.. the ONLY difference was the 'B' model was produced in Inglewood CA... and the 'C' model was produced in Dallas TX..
ALL AIRSPEED and NO HEADING is how most people plan their lives..   PICK a HEADING!.. And you eventually get to where you want to go!

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Re: P51 B
« Reply #30 on: April 21, 2015, 11:16:34 PM »
Jim , pretty much like this , but he's left of the back windows and thinks its a Ferrari ( Red Paint ) .


Offline Mark Mc

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Re: P51 B
« Reply #31 on: April 26, 2015, 07:17:01 PM »
Will tryn throw some pictures of one im building on ,




Actually, I've always wanted to build a C/L version of the "Beguine", but I know I'd screw up the music notation along the side.  One of my favorite Thompson racers.  I really love the green with white trim it was painted.

Mark

Offline Air Ministry .

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Re: P51 B
« Reply #32 on: October 03, 2015, 08:29:31 PM »
HUMPH .



Eric Bjornwall . aeromodellor Plan . 1965 ? .

Offline Avaiojet

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Re: P51 B
« Reply #33 on: October 04, 2015, 07:29:16 PM »
I actually have graphics for "The Beliver," someplace deep in my files.

Absolutely compitition quality correct scale.

Nice aircraft to model.

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If you're Trolled, you know you're doing something right.  Alpha Mike Foxtrot. "No one has ever made a difference by being like everyone else."  Marcus Cordeiro, The "Mark of Excellence," you will not be forgotten. "No amount of evidence will ever persuade an idiot."- Mark Twain. I look at the Forum as a place to contribute and make friends, some view it as a Realm where they could be King.   Proverb 11.9  "With his mouth the Godless destroys his neighbor..."  "Perhaps the greatest challenge in modeling is to build a competitive control line stunter that looks like a real airplane." David McCellan, 1980.

Offline Serge_Krauss

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Re: P51 B
« Reply #34 on: October 06, 2015, 09:40:55 AM »
Norm Skuderin's "Beguine"

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Re: P51 B
« Reply #35 on: October 25, 2015, 08:42:09 PM »
Mustunt PLAN ( photo )

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Re: P51 B
« Reply #36 on: October 25, 2015, 08:43:46 PM »
Berry P51-B

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Re: P51 B
« Reply #37 on: October 25, 2015, 08:45:12 PM »
Berry Plan picture.

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Re: P51 B
« Reply #38 on: October 25, 2015, 08:47:24 PM »
Similer to a siverling P51 , but thats a D , so if your after a 'period ' B , these are here so you can see what was .


Offline Crist Rigotti

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Re: P51 B
« Reply #39 on: October 26, 2015, 11:27:28 PM »
I actually have graphics for "The Beliver," someplace deep in my files.

Absolutely compitition quality correct scale.

Nice aircraft to model.



Here's my picture of me taken with the "Believer" in Vegas around 1988?

Crist
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Offline Larry Borden

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Re: P51 B
« Reply #40 on: October 28, 2015, 11:28:23 AM »
Saw a set of plans for Jim Vornholts P51B on ebay. Uses foam wing.

Offline Mark Scarborough

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Re: P51 B
« Reply #41 on: October 28, 2015, 12:53:41 PM »
Pat Johnstons P-51 stunter is a great model, published in Model Aviation,, clean build and performs very well,, it would be a simple conversion to make a B model out of it
For years the rat race had me going around in circles, Now I do it for fun!
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Offline Daniel_Munro

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Re: P51 B
« Reply #42 on: November 06, 2015, 03:17:45 AM »
HUMPH .



Eric Bjornwall . aeromodellor Plan . 1965 ? .

I've got an unused copy of the plan for Mustunt in the garage, wonderful looking plane.

It's another on the to do list some day. Along with Nobler, Supermaster, Duetto etc etc haha.

NZL7396

Offline JIM Nordin

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Re: P51 B
« Reply #43 on: November 11, 2015, 11:11:57 PM »
House of balsa did. 40 size RC mustang back in the day it would make a nice control line

Offline TigreST

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Re: P51 B
« Reply #44 on: January 08, 2016, 10:27:07 AM »
House of balsa did. 40 size RC mustang back in the day it would make a nice control line


I built the House of Balsa P-51 back in 1985? But it was no stunt plane in a c/l sense.  It lasted about 1 and a 1/2 flights.  It went in during an attempted pull out from inverted on the back side of a very lazy horizontal eight.  Mine was ST-46 Bull Ring powered and with out a doubt very much over weight.  I had used fiberglass resin as a finishing medium to fill the wood grain.   The symmetrical airfoil did not help at all, D'oh!  I had finished the landing gear doors, but wasn't going to install them until after the maiden flights.  I've still got them gear doors somewhere, ha!
Tony Bagley
Ontario, Canada

Offline Avaiojet

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Re: P51 B
« Reply #45 on: January 08, 2016, 07:31:28 PM »
Well, I cannot find my House of Balsa P-51 kit?

I'm thinking I sold it or traded it for something?

If I sold it or traded it to someone in the Forum, would you please let me know?

Thanks in advance.

Charles

I remembered. I sold the kit to a fellow modeler and I remember who.
« Last Edit: January 08, 2016, 10:43:21 PM by Avaiojet »
Trump Derangement Syndrome. TDS. 
Avaiojet Derangement Syndrome. ADS.
Amazing how ignorance can get in the way of the learning process.
If you're Trolled, you know you're doing something right.  Alpha Mike Foxtrot. "No one has ever made a difference by being like everyone else."  Marcus Cordeiro, The "Mark of Excellence," you will not be forgotten. "No amount of evidence will ever persuade an idiot."- Mark Twain. I look at the Forum as a place to contribute and make friends, some view it as a Realm where they could be King.   Proverb 11.9  "With his mouth the Godless destroys his neighbor..."  "Perhaps the greatest challenge in modeling is to build a competitive control line stunter that looks like a real airplane." David McCellan, 1980.

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Re: P51 B
« Reply #46 on: May 14, 2016, 06:00:51 AM »
A Aeromodellor Bjornwall MUSTUNT , being done as ' Miss R J ' , back in 76 .





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