NAVWEPS Do-Sd-eD 
“,G” SPEED AERODYNAMICS 
EFFECT OF SPEED AND ALTITUDE 
ON AERODYNAMIC HEATING 
STAGNATION 
TEMPERATURE 
AT 
SEA LEVEL 
RAM TEMPERATURE 
;;I 
Z STAGNATION 
w TEMPERATURE I- IN THE 
STRATOSPHERE 
500- 
0, --I 0 500 1000 1500 2000 2500 3000 
TRUE AIRSPEED, KNOTS 
APPROXIMATE EFFECT OF TEMPERATURE 
ON TENSILE ULTIMATE STRENGTH, l/2 HR, EXPOSURE 
IOO- 
go- 
00- 
70- 
60- 
50- 
40- 
30- ,-ALUMINUM 
20- ALLOY 
IO- L Or I 
0 100 200 300 400 500 600 700 SO0 900 ~000 
TEMPERATURE, “F 
Figure 3.21. Aerodynamic Heating 
241