Archive
of
Collections
Details and Image
Type
Model #.
Aircraft Maker / Name
Instrument Maker
Country
Construction
Date
Scale Length
Area of Use
Linear
None
Douglas Aircraft
"Douglas Aircraft Company, Inc."
U.S.A.
Plastic
est. 1950's & 1960's
5.7 cm x 8.8 cm
Airspeed & Mach No.
Comment:
1) Used to correct airspeed guages for air compressibility and altitude 2) Also used to convert knots to mach numbers
Image 1
Image 2
