Q4. A twin-engine light cargo aircraft has a take-off weight of 10 000 lb and for a reasonable take-off distance, requires a F/W at 50 mph of 0.25 at SSL conditions. The propeller diameter is 7ft. Assuming the required engine shaft power to drive the propeller is 1.22 times the ideal actuator disk power, estimate the needed shaft power delivered by each engine.
Q4. A twin-engine light cargo aircraft has a take-off weight of 10 000 lb and for a reasonable take-off distance, requires a F/W at 50 mph of 0.25 at SSL conditions. The propeller diameter is 7ft. Assuming the required engine shaft power to drive the propeller is 1.22 times the ideal actuator disk power, estimate the needed shaft power delivered by each engine.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
Can you please answer question 4
Transcribed Image Text:Q3. Perform a design point cycle analysis for a non-afterburning turbojet engine at cruise
flight conditions. Take note of the following performance parameters:
Diffuser: nd = 0.97; yd = 1.4;
Compressor: nc = 0.95; yc = 1.37; π = 20;
Burner: nb = 1; yb = 1.35; πb = 0.95; T_max = 1500K
qr = 45 MJ/kg of fuel
Turbine: nt = 0.90; yt = 1.33; nm = 0.99
Core nozzle: nn = 0.98; yn = 1.36
Current flight conditions at 12200 m cruise altitude, and cruise Mach number of 0.85.
Given the above flight and engine information, determine the specific thrust, TSFC, and
overall efficiency.
Q4. A twin-engine light cargo aircraft has a take-off weight of 10 000 lb and for a reasonable
take-off distance, requires a F/W at 50 mph of 0.25 at SSL conditions. The propeller
diameter is 7ft. Assuming the required engine shaft power to drive the propeller is 1.22
times the ideal actuator disk power, estimate the needed shaft power delivered by each
engine.
End of Part B
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