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METAL DIMENSIONAL CHANGE WITH TEMPERATURE

1964-03-01
HISTORICAL
AIR809
DATA ARE RELATED TO THE DIMENSIONAL CHANGES WITH RESPECT TO ROOM TEMPERATURE AND PROVIDE ACCURACY SUFFICIENT FOR USE WITH MOST AEROSPACE SYSTEMS. TWO BASIC METHODS OF SOLUTION ARE PRESENTED WITH EXAMPLES FOR STEADY STATE CONDITIONS INVOLVING UNIFORM AND NON-UNIFORM TEMPERATURE DISTRIBUTIONS. THE ANSWERS TO THE EXAMPLE PROBLEMS ARE CARRIED TO THE FIFTH PLACE FOR A COMPARISON OF THE RESULTS BETWEEN METHODS I AND II.
Standard

Metal Dimensional Change with Temperature

2001-10-01
HISTORICAL
AIR809A
Data are related to the dimensional changes with respect to room temperature and provide accuracy sufficient for use with most aerospace systems. Two basic methods of solution are presented with examples for steady state conditions involving uniform and non-uniform temperature distributions. The answers to the example problems are carried to the fifth place for a comparison of the results between Methods I and II.
Standard

Metal Dimensional Change with Temperature

2018-03-30
CURRENT
AIR809B
Data are related to the dimensional changes with respect to room temperature and provide accuracy sufficient for use with most aerospace systems. Two basic methods of solution are presented with examples for steady state conditions involving uniform and non-uniform temperature distributions. The answers to the example problems are carried to the fifth place for a comparison of the results between Methods I and II.
Standard

FINAL REPORT ON COLD STARTING OF RECIPROCATING AIRCRAFT ENGINES

1951-10-01
CURRENT
AIR13A
INTRODUCT ION Conventional internal conbustion a i r c r a f t engines require the same basic conditions for starting in cold weather as they do in warn weather. These are: (1) The engine must be cranked a t a reasonable speed. ( 2 ) A combustible mixture must be delivered t o the cylinders. (3) An ignition spark must be supplied which is capable of igniting t'ne charge a t the proper t i m e . (4) The fits and olearanoes of mating parts in the engine m u s t be such that normal Sunctions occur a t a l l temperatures. (5) The engine must receive a usable lubricant. (6) The engine must develop s u f f i c i e n t power t o overcome its own f r i c t i o n and accelerate itself t o the desired operating speed.
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