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Speed,Combat,Scale,Racing => Scale Models => Topic started by: dale gleason on April 10, 2008, 08:43:13 PM

Title: B-25 Mitchell
Post by: dale gleason on April 10, 2008, 08:43:13 PM
We all know the first 8 or 9 B-25s had no gull wing, right? I started a Eureka B-25 kit while in Japan in 1958, or thereabout. Nice spun cowls and the plans were blueprints. As the plane neared completion, all the planking done, the guy running the base Hobby Shop pointed out my plane had regular dihedral and B-25s had the "gull Wing" planform. I traded it off, disgusted with Eureka. Now I have to wonder, was that kit one of those first Mitchells? Does anyone have or has anyone seen a Eureka kit such as I built? The wing spar's geometry allowed only a normal dihedral wing to be built, as I recall, but it has been a very long time...
Thannks for any info,
dale gleason 
Title: Re: B-25 Mitchell
Post by: Chris McMillin on April 11, 2008, 12:20:11 AM
I don't know about the kit, but I used to do some work on one of the straight winged bombers (later reconfigured to gull wing) that was converted to Hap Arnold's transport while a USAAF airplane and converted to executive transport after the war. The airplane was around Chino for several years in the 70's and 80's. It was very fast compared to the standard J or TB-25N.
Chris...
Title: Re: B-25 Mitchell
Post by: dale gleason on April 11, 2008, 05:18:34 AM
 I've had the notion of building another B25 for some time, this time to completion. It would be just a Standoff Scale. With documentation for the "straight" wing, it would be different, anyway. Now that there is photo evidence of a B25 cable arrested landing ( picture in Carrier section) it could be a multi-purpose airplane.
 Wonder if any ever got R2800s? That would add some performance.  dg
Title: Re: B-25 Mitchell
Post by: john e. holliday on April 12, 2008, 08:43:28 AM
Hey Dale,  try the AMA  site and see if they may have the plans for the bird.  I always thought it was one cool looking plane.  DOC Holliday
Title: Re: B-25 Mitchell
Post by: Chris McMillin on April 12, 2008, 10:38:03 AM
I've had the notion of building another B25 for some time, this time to completion. It would be just a Standoff Scale. With documentation for the "straight" wing, it would be different, anyway. Now that there is photo evidence of a B25 cable arrested landing ( picture in Carrier section) it could be a multi-purpose airplane.
 Wonder if any ever got R2800s? That would add some performance.  dg


Hi Dale,
I think the B-25 got 2600's because the Martin and the fighters were using the 2800's and there wasn't sufficient production to support them all. I looked but couldn't find a reference to the first B-25 having 2800's but NAA built another prototype with them, i believe.
Hi to Linda from Laura.
Chris...
Title: Re: B-25 Mitchell
Post by: Thomas Wilk on April 12, 2008, 12:25:53 PM
this is a C/L scale published
Model - B-25H Mitchell
Magazine - 1962 MAN Oct p11
wing sapn - 56.50
wing area - 469.44   
engines - .45x2
plan # - A-12  the might still be available
designer - Piorkowski, Florian S.

Tom Wilk
Ols magazine plans on CD
Title: Re: B-25 Mitchell
Post by: Chris McMillin on April 13, 2008, 12:26:18 AM
Nice size for a stunter.
Chris...
Title: Re: B-25 Mitchell
Post by: chuck snyder on April 13, 2008, 08:22:42 AM
Little short on wing area for a stunter, little long on span for carrier, but with the right props it ought to achieve a scale speed of mach 1.4

Chuck
Title: Re: B-25 Mitchell
Post by: Bill Little on April 15, 2008, 07:49:56 AM
Little short on wing area for a stunter, little long on span for carrier, but with the right props it ought to achieve a scale speed of mach 1.4

Chuck

LL~ LL~ LL~ LL~

I think it would be pretty good with some weight saving building, and props, plus a Rabe *style* airfoil, it could be a very good stunter!  (and probably flow quite easily on a pair of smaller stunt engines)

Bill
Title: Re: B-25 Mitchell
Post by: Chris McMillin on April 15, 2008, 12:52:15 PM
Yeah,
Too big for Carrier, too small for Stunt. But as Bill says, splitting that airfoil with some Rabe style flaps, making it to the outline of the plans and lightening the structure, and using some high ouput modern small engine with APC props it'd be interesting as a Stunter.
My own experience with small twin engined Stunters is that I cannot make them light enough to fly.

Chris...
Title: Re: B-25 Mitchell
Post by: Thomas Wilk on April 15, 2008, 04:33:08 PM
model = B-25 Mitchell stunter
magazine = 1963 FM Ot-Nv p18
wingspan = 54.00
wing area = 446.75
engines = .19x2
class = Classic Stunt
plan # = CF195
designed by = Del Gatto, Paul E.

Tom Wilk
old magazine plans on CD
Title: Re: B-25 Mitchell
Post by: Tom Niebuhr on April 16, 2008, 02:56:47 AM
Dale,

I have the plans to the Delgatto B-25 stunter is you want them
Title: Re: B-25 Mitchell
Post by: dale gleason on April 17, 2008, 08:21:10 AM
Thanks for all the input, guys. The thing I'm looking for is the old Eureka B-25 in particular. Probably they're all gone, I was just curious as to which wing (wings) it had. Thanks once more, dg
Title: Re: B-25 Mitchell
Post by: Chris McMillin on April 19, 2008, 12:01:03 AM
Hi Dale,
You do see those Eureka kits every once in a while on eBay or in swap meets. You might find one eventeually.
Chris...
Title: Re: B-25 Mitchell
Post by: Wynn Robins on April 20, 2008, 10:25:06 PM
Hi Dale,
You do see those Eureka kits every once in a while on eBay or in swap meets. You might find one eventeually.
Chris...

you might - but they sell for over $1000 at the moment.  might be good to get one, trace the parts and re-sell it.
Title: Re: B-25 Mitchell
Post by: Bill Little on April 21, 2008, 09:06:50 AM
The Eureka kit I have (from the early '60s) is the gull wing version.  The *blue prints* are almost gone!  faded out bad, so I need to trace them with my Rapidograph, someday, before they completely disappear!  Small, heavy, model.

Bill <><
Title: Re: B-25 Mitchell
Post by: dale gleason on April 21, 2008, 09:24:58 AM
Bill,
That's what I was looking for! The one I had (1958) would probably have needed a pair of .19s, I was going with .29s, way to much, probably. About 30 in. wingspan, roughly.

No straight wing version on the plans, eh? I guess I must have put the spars in the wing wrong somehow.

Thank you, dg
Title: Re: B-25 Mitchell
Post by: Bill Little on April 21, 2008, 12:34:36 PM
Bill,
That's what I was looking for! The one I had (1958) would probably have needed a pair of .19s, I was going with .29s, way to much, probably. About 30 in. wingspan, roughly.

No straight wing version on the plans, eh? I guess I must have put the spars in the wing wrong somehow.

Thank you, dg

Hi Dale,

I set it up for a pair of McCoy 19s, no throttles. ;D  A LOT of work had to be done to get it looking like a B-25, but not as much as a scratch built! LOL!!

The metal cowls were nice, but the clear plastic was too thin and kinda brittle.  Forget the *decals*, they were ink printed on typing paper it looked like.  Better used to make templates for painting! LL~

Bill <><

Bill <><