A jet engine is designed to operate at endurance of 12hrs. If weight fraction is 1.6 and jet engine has tsfc C as 0.00021 per second then, find at which lift to drag ratio that can satisfy above criteria.

A jet engine is designed to operate at endurance of 12hrs. If weight f

1.	A jet engine is designed to operate at endurance of 12hrs. If weight fraction is 1.6 and jet engine has tsfc C as 0.00021 per second then, find at which lift to drag ratio that can satisfy above criteria.
A.	19.3
B.	18
C.	12
D.	12.6
Answer» B. 18

Discussion

No Comment Found

Related MCQs

In Steady level unaccelerated flight, lift is equal to weight.
A jet engine is designed to operate at endurance of 12hrs. If weight fraction is 1.6 and jet engine has tsfc C as 0.00021 per second then, find at which lift to drag ratio that can satisfy above criteria.
A prop driven aircraft has propeller efficiency of 0.92 and C as 0.000745 1/m. If lift to drag ratio is 14 and weight fraction as 1.145 then, find range of the propeller driven aircraft.
A propeller aircraft has wing loading of 30 unit and is operating with density of 1.21 unit. Determine velocity for maximum loiter. Consider K/CD0 as 0.1.
An aircraft has maximum lift to drag ratio of 15. If we want to fly aircraft for best range then, find the best value of aerodynamic efficiency to achieve above mentioned result.
Find instantaneous range of a jet propelled aircraft if lift to drag ratio is 12 and weight fraction at cruise W1/W0 is 1.9. Consider cruise speed of 120m/s and SFC of 0.00161 per second.
Find the value of lift coefficient to ensure power required minimum condition for cruise if CD0/K is given as 0.480.
Determine the value of drag at which we can have minimum power if given reference area is 10m<sup>2</sup> and zero lift drag coefficient is 0.5. Consider q as 120Pa.
If power required at sea level altitude is 2005W then, determine power required at altitude at which density ratio is 0.9.
An aircraft is operating with CL of 1.5 and has power required of 120W. If we want to reduce the power required by half then, find the value of CL at this power required condition. Consider steady level flight.

A jet engine is designed to operate at endurance of 12hrs. If weight fraction is 1.6 and jet engine has tsfc C as 0.00021 per second then, find at which lift to drag ratio that can satisfy above criteria.

Discussion

No Comment Found

Related MCQs

Reply to Comment