USAF/NASA/Rockwell Hypersonic Technology Integration Demonstrator (HYTID) 1978

"The Air Force was engaged in the development of the Hypersonic Technology Integration Demonstrator (HYTID), formerly known as NHFRF, to accelerate the development and demonstration of technology for future military systems designed to operate within the atmosphere at speeds between Mach 4 and 8.

The primary objective of HYTID was to conduct experimental research in the hypersonic test environment -available within its flight capability envelope. Sufficient design flexibility was built into HYTID so that it could accommodate the aerodynamic drag, thermal interference heating, and flight control perturbations brought about by the installation and operation of all candidate experiments.
Those experiments that have a major vehiole design impact are associated with the airbreathing propulsion tests. As the specific impulse of airbreathing propulsion systems is an order of magnitude higher than rockets, their ultimate use in hypersonic vehicles is an attractive goal. To provide the test-bed capability to assure the development of these high-performance propulsion systems, HYTID was configured to the requirements of these systems. The most promising of these concepts today are the scramjets. However, they cause a major configuration impact, as the forebody of the fuselage must be configured to provide the inlet precompression properties required, while the afterbody must conform to the engine exhaust expansion requirements."

Source
NASA Conference Publication 2065 Part II
Recent Advances in Structures for Hypersonic Flight
Proceedings of a symposium held at Langley Research Center
Hampton, Virginia
September 6-8, 1978

Re: USAF/NASA/Rockwell Hypersonic Technology Integration Demonstrator (HYTID) 19

Thank you Sooooooo Much Flateric !!!!!!!!

Reminds me of those NASA studies for a delta winged X-15-3. Check it out:
http://renax.club.fr/sharkit/X-15/Historic2.jpg

Moonbat

flateric said:

"The Air Force was engaged in the development of the Hypersonic Technology Integration Demonstrator (HYTID), formerly known as NHFRF, ...
"

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Cool! Thanks!

flateric said:

"The Air Force was engaged in the development of the Hypersonic Technology Integration Demonstrator (HYTID), formerly known as NHFRF, to accelerate the development and demonstration of technology for future military systems designed to operate within the atmosphere at speeds between Mach 4 and 8.

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My dear Flateric,


I found that report about the former hypersonic aircraft (NHFRF),but the company involved in it
with NASA and USAF was Vought !.


http://arc.aiaa.org/doi/abs/10.2514/3.58342

Rockwell International NHFRF proposal D590-8 :



I don't think this is in the US Lifting bodies mega-thread (as far as I can tell, just the related Lockheed L-301 versions.

The overall length of this vehicle is 21 m, wingspan is 7.87 m and launch is by air-drop from the B-52. Acceleration is to be provided by either one Rocketdyne LR-105 engine (LOX-RP fuel) or one Aerojet YLR-99 (LOX-NH3 fuel) with cruise rocket propulsion supplied by either 12 Rocketdyne LR-101 engines or two Aerojet XLR-l1 engines mounted in the base region of the fuselage. The scramjet experimental installation consists of four NASA LRC modules located on the bottom of the fuselage. These modules are 56 cm deep, 3.2 m long, and are fueled with liquid hydrogen​

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Study of hypersonic propulsion/airframe integration technology Rockwell International Corp. January 1978

(Slightly) better quality version of first pic in thread:

I think that's the source;

"Study of hypersonic propulsion/airframe integration technology"

"Recent Advances in Hypersonic Structures" Has HYTID hot section tests

The overall length of this vehicle is 21 m, wingspan is 7.87 m and launch is by air-drop from the B-52. Acceleration is to be provided by either one Rocketdyne LR-105 engine (LOX-RP fuel) or one Aerojet YLR-99 (LOX-NH3 fuel) with cruise rocket propulsion supplied by either 12 Rocketdyne LR-101 engines or two Aerojet XLR-l1 engines mounted in the base region of the fuselage. The scramjet experimental installation consists of four NASA LRC modules located on the bottom of the fuselage. These modules are 56 cm deep, 3.2 m long, and are fueled with liquid hydrogen

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Rocket engine pornfest !
- LR-105: Atlas sustainer (from memory)
- XLR-99: X-15 engine burning ammonia and throtteable, of the very first engines to do that
- LR-101: Atlas verniers
- XLR-11: good old X-1 engine, also used on early X-15 flights and also on Lifting bodies. And probably some others I forget.

Whatever engine they would have picked up, it would have big legacy: Atlas or X-15 or X-1, no less. Make sense: they needed a proven and reliable rocket to go beyond Mach 6 and into scramjet ignition.

Fun fact: Bob Truax also wanted to use Atlas verniers on its own Volksrocket, same era.

Years ago, a small shop in Burbank called "The Nostalgic Aviator" sold in house artwork. I bought an X-15 painting in gouache that had been repainted over the years starting with the first one with the xlr-11's, then overpainted the xlr-99, then the x-15 a-2 with drop tanks. the last version was this HYTID image wich was actually a clear acetate overlay. It sat on my flat files in the back corner of my office so i could see it. And one day for unknown reasons, my cat, Xena, who i saved from being crushed on a 4 lane road near Rocketdyne, runs in, sprays the overlay with pee, then splits. I almost cried when the HYTID sported a new weathed look of drips streaking downward. Eventually I'll try and restore it. I JUST WISH ID TAKEN A COLOR PICTURE OF IT!