pre-X-1 piston 'supersonic' concept

[Wahubna]

Does anyone here have details on NACA Langley engineer John Stack's 2,300hp Rolls-Royce powered concept pre-dating the X-1? He estimated 566mph for this hypothetical design from what I am reading.

It might pre-date US entry into WW2.

 

[hesham]

Hi Wahubna,

Here is the early concepts which led to X-1.

http://www.secretprojects.co.uk/forum/index.php/topic,19395.msg187414.html#msg187414

 

[shaba]

Wahubna do you mean Jake's jeep ? the thermojet project from 1941.

 

[hesham]

Wahubna do you mean Jake's jeep ? the thermojet project from 1941.

Hi Shaba,


you meant this;


http://www.hyperscale.com/2011/features/jakesjeep72tc_1.htm

 

[hesham]

Hi,


also here is a hypothetical aircraft by John Stack of 1933,for high speed design.


http://history.nasa.gov/SP-4219/Chapter3.html

 

[hesham]

Also here is some of his activities;

http://crgis.ndc.nasa.gov/historic/John_Stack_Archives_Collection

 

[Wahubna]

Thank you hesham!

 

[Antonio]

http://www.hyperscale.com/2011/features/jakesjeep72tc_1.htm

This jake's jeep looks like a Convair XP-82. And the story told in the website linked seems to be questionable.

 

[Stargazer]

http://www.hyperscale.com/2011/features/jakesjeep72tc_1.htm

This jake's jeep looks like a Convair XP-82. And the story told in the website linked seems to be questionable.

Do you mean XP-92? Can't really see a resemblance myself... There also was a Convair XP-81 but this was a mixed-propulsion aircraft, so were you talking about that?

 

[Antonio]

Yes, I mean the XP-92 from MX813 (1946). Please see T. Buttler Early US Jet Fighters page 83 to 85 for a quick reference.
I'm not talking about the mixed-propulsion XP-81.

Please follow this link from Matej to see the XP-92 ( next to an early XF-92 concept and the XF-92 prototype)

http://www.hitechweb.genezis.eu/fightersAP02b.files/image008.jpg

Jake's Jeep configuration remembered me the XP-92 configuration in a much "primitive looking"

 

[hesham]

My dears,


we must also don't forget Wahubna title mentioned piston,and I think he meant a piston
engine ?.

 

[lark]

The 'Jeep' nickname for the thermojet (Campini type) was powered by a piston engine
drivin' the ducted fan and a turbo compressor...

The aircraft itself was only designed to investigate the propulsion method

 

[hesham]

The 'Jeep' nickname for the thermojet (Campini type) was powered by a piston engine
drivin' the ducted fan and a turbo compressor...

The aircraft itself was only designed to investigate the propulsion method

Yes my dear Lark,


but do you know this John Stack's aircraft ?.

 

[Vladimir]

Hi, did any one have "jake jeep" 3-view? and more info?

 

[hesham]

Hi, did any one have "jake jeep" 3-view? and more info?

Hi Vladimir,

I haven/t a 3-view to it,but I will search on Internet.

 

[Vladimir]

Many thanks, hesham!

 

[xylstra]

Shout-out to you all: Type "Montagne Machbuster" into your search engine and dive deep!

 

[sienar]

"concept" is a bit of a leap. Its more like a notional design to illustrate an idea.

 

[Justo Miranda]

Jeep technical data



Wingspan: 41.4 ft (12.6 m), lenght: 30.2 ft (9.2 m), height: 9.35 ft (2.85 m), wing area: 215 sq.ft (19 sq.m), fuselage diameter: 5.2 ft (1.61 m), wing thickness ratio: 0.15, estimated profile drag: 0.0153, estimated maximum speed: 550 mph (885 kph), maximum weight: 9,780 lbs (4,430 kg), fuel capacity: 3,060 lbs (1,848 litres) in wing tanks.