Rockwell NA-420, NA-430 and NA-431 (US Navy "Type A" proposals)

[overscan (PaulMM)]

Rockwell NA 430 VSTOL Multi Mission Aircraft


Design definition study of NASA/Navy lift/cruise fan V/STOL aircraft. Volume 1: Summary report of Navy multimission aircraft
Cavage, R. L. (Rockwell International)
NASA-CR-137695

https://ntrs.nasa.gov/citations/19760005982

 

[hesham]

Hi,

http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA144214&Location=U2&doc=GetTRDoc.pdf

 

[Stargazer]

That's the North American NA-431, one of three "Type A" proposals for the U.S. Navy (the other two being NA-420 and NA-430, see attachments).

 

[overscan (PaulMM)]

Presume this is Rockwell's NA-420 design

Source: http://archive.org/details/C-1981-5639

(picture edited)

 

[hesham]

Hi,


here is the Rockwell Lift Cruise Fan V/STOL aircraft in multi-mission configuration,
for Naval uses.

Low speed wind tunnel test of ground proximity and deck edge effects on a lift cruise fan V/STOL configuration, volume 1
Stewart, V. R.(Rockwell International)
NASA-CR-152247

https://ntrs.nasa.gov/citations/19790019970

Low speed wind tunnel test of ground proximity and deck edge effects on a lift cruise fan V/STOL configuration, volume 2
Stewart, V. R.(Rockwell International)
NASA-CR-152248

https://ntrs.nasa.gov/citations/19790019971

 

[hesham]

Is this Model,the Rockwell NA-420 ?;

Flow visualization and interpretation of visualization data for deflected thrust V/STOL nozzles
Kao, H. C, Burstadt, P. L, Johns, A. L. (NASA Lewis Research Center)
NASA-TM-83554

https://ntrs.nasa.gov/citations/19840006079

 

[Stargazer]

Is this Model,the Rockwell NA-420 ?;

I don't think so. Despite some commonalities, there are also some notable differences:

• Small canopy on NA-420, large canopy and small nose on this design
• Engine pods below wing on NA-420, but partly above on this design
• Tail unit seems to extend further aft on this design

BUT... it could still be a different sub-variant of the NA-420.

 

[hesham]

Also from AIAA;


http://arc.aiaa.org/doi/abs/10.2514/3.57954

 

[overscan (PaulMM)]

From a generic VSTOL topic, Rockwell NA-430 artwork from Naval Aviation News Sept 1978.

 

[overscan (PaulMM)]

From Ron Kaplan in Facebook Group "The X-Planes Fans" (https://www.facebook.com/groups/1034064560004676) comes this incredible artwork, looks like Rockwell NA-430.

 

[overscan (PaulMM)]

There's a beautiful NA-430 in-flight painting and an NA-431 ready for takeoff painting in American Secret Projects: US Airlifters Since 1962 P.187. The NA-430 is close to the artwork above, but the wing depicted above is closer to the NA-431.

 

[Vahe Demirjian]

Is this Model,the Rockwell NA-420 ?;


http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19840006079_1984006079.pdf

That aircraft is actually the NA-430; the artwork showing the NA-430 can be found on page 187 of American Secret Projects 3: US Airlifters Since 1962.

 

[hesham]

From this report

 

[Prophet141]

That engine layout looks very unusual. It looks like there are two gas-turbines of some sort in each nacelle powering a fan that then sends air through the wings? Am I getting that right? Does anyone have a labelled diagram/patent for this design?

 

[hesham]

Hi,


here is the Rockwell Lift Cruise Fan V/STOL aircraft in multi-mission configuration,
for Naval uses.

Low speed wind tunnel test of ground proximity and deck edge effects on a lift cruise fan V/STOL configuration, volume 1
Stewart, V. R.(Rockwell International)
NASA-CR-152247

https://ntrs.nasa.gov/citations/19790019970

Low speed wind tunnel test of ground proximity and deck edge effects on a lift cruise fan V/STOL configuration, volume 2
Stewart, V. R.(Rockwell International)
NASA-CR-152248

https://ntrs.nasa.gov/citations/19790019971

Also from this report.