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XyZspineZyX
08-18-2003, 04:56 AM
Salute all

There are those who are questioning whether or not the P-39's should be inherently unstable or prone to spinning.

This was an issue the USAAF itself was interested in determining in the early years of the war.

Bell Aircraft modified its aircraft after the initial model, and assured the Army Airforce everything was good, however the AAF decided to commission a study by NACA (National Advisory Committee for Aeronautics, the predecessor to NASA) to determine independently whether or not the design was dangerously unstable.

For those interested in reading their report, go here:

http://naca.larc.nasa.gov/reports/1947/naca-rm-a6l27/

You will note that NACA had no axe to grind being an independent Agency.


Cheers RAF74 Buzzsaw

XyZspineZyX
08-18-2003, 04:56 AM
Salute all

There are those who are questioning whether or not the P-39's should be inherently unstable or prone to spinning.

This was an issue the USAAF itself was interested in determining in the early years of the war.

Bell Aircraft modified its aircraft after the initial model, and assured the Army Airforce everything was good, however the AAF decided to commission a study by NACA (National Advisory Committee for Aeronautics, the predecessor to NASA) to determine independently whether or not the design was dangerously unstable.

For those interested in reading their report, go here:

http://naca.larc.nasa.gov/reports/1947/naca-rm-a6l27/

You will note that NACA had no axe to grind being an independent Agency.


Cheers RAF74 Buzzsaw