USAAF 1935 CP35-356 for bombers and winning entry Douglas X-202 - seeking any and all information

[ACResearcher]

Anyone have any information/original documents/GA 3-views/etc. on the above? Other entries included the Bellanca 115-200, Douglas DB-1 (disqualified) and Burnelli B-1.

NONE of the aircraft were procured because the designs were not considered far enough advanced over existing types to warrant the expenditure.

Thank you in advance.

AlanG

 

[Sherman Tank]

Are you sure it's CP35-356? Everything I've seen declares that CP35-356 was the proposal that led to the B-17. There's nothing about these other models that I can find anywhere.

 

[hesham]

Just picture to DB-1.

https://www.worldwarphotos.info/gallery/usa/aircrafts-2-3/b-18/douglas-db-1/

 

[ACResearcher]

Sherman,

Yes, I am absolutely sure it is CP 35-356. Below is one of the pages of the submissions analysis. I can't speak to the B-17 off the top of my head. It is a possibility that, since none of the entries was deemed acceptable, it was reissued (possibly with some changes) and thus the B-17.

AlanG

 

[Dynoman]

The Burnelli entry was the A-1 (which is rumored to have won the competition, but lost to Douglas after Roosevelt found out that the financiers for the A-1 was Arthur Pew, who financed Roosevelt's rival, Wendell Wilkie).

Original performance calculations on the Bellanca 115-200 from NASM.

Slideshow | NASM.1993.0055_ref894

There are five reports on the Bellanca 115-200. Some of the reports have wing, tail, and fuselage sections in them. You'll have to cobble the drawings together to get the full picture of the aircraft. Reports can be found here, search 115-200. https://sirismm.si.edu/EADpdfs/NASM.1993.0055.pdf

A real treasure trove of Bellanca's work!

 

[Sherman Tank]

From the drawings in those reports the 115-200 would've looked somewhat like a fatter, single-tailed Avro Manchester.

 

[hesham]

For Burnelli A-1,please see reply # 56;

https://www.secretprojects.co.uk/threads/burnelli-projects.3888/page-2

 

[Dynoman]

Not a great job piecing the drawings together, but gives one an idea of the profile of the Model 115-200.

 

[lark]

There is a good article about the Burnelli Bombers by Dave Ostrowski
in ' Skyways-The journal of the Aeroplane 1920-1940' No.34 of April 1995
Includig a 3-view of the A-1

 

[Dynoman]

Additional drawings from the Bellanca 115-200. The aircraft was to be a twin engine aircraft with engines and radiators mounted in the nacelles and an internal bomb bay. Two 30 mm guns where evaluated at stations that correlate to the nose, wings. mid-fuselage, and tail. The moment for a 50 cal gun in the tail also looks as though it was considered. The aircraft had a planned gross weight of 24,061 lbs. and an endurance of 10 hours.

 

[Dynoman]

I wonder if the nose section of the Bellanca 115-200 is designed similarly to the Martin B-10. The Martin design (below) first flew in 1932.

 

[lark]

As we have seen before,a bomber variant of the Douglas DC-1 was created.
At least a wind tunnel model was constructed.
See thread 'Douglas DC-1 bomber variant' on this forum.
The nose contours of the Douglas model are close to those on the Bellanca project.
Perhaps this was the Douglas entry of wich ACR is looking for more info...

 

[overscan (PaulMM)]

This is the "DC-1 bomber" picture. Date is March 1934 which is the right timeframe.

 

[Sherman Tank]

I decided to do a quick sketch of the "complete" Bellanca 115-200 design from the images posted here. I am absolutely not a draftsman or artist in any sense, so everything in this has to be taken with as much salt as possible, and it is not to scale by any stretch of the imagination. I've included as little fine detail as possible except in the case of the cockpit, aerials, and nose turret, which I'm inferring from the Martin B-10, thus it's entirely possible they're also completely wrong. The tailplane layout and the engine nacelles are total speculation on my part.

Still, I suppose it's better than nothing, because as far as I can find there's never been a published illustration of the design and one may not even exist.