4950 fpm 6198 fpm 4798 fpm 3300 fpm Question 10 P.-P. curves for a propeller airplane are shown in Figure 7.23. Find the rate of climb at 250 knots. 4000 Airplane data Weight 20000 lb Wing area (S) 500 ft Sea level density = 1 Horsepower required: = DV 325 3000 Full power sea level (HP Max rate 2000 of 1000 Vs climb Horsepower required (HP) 0 0 100 200 300 Velocity (kts.)