MC-130 Aero & Perf

Question 1

The effect of flaps on lift

Answer 1

For the same AoA, CL will increase with flaps extended

Question 2

Refusal Speed

Answer 2

Maximum speed the aircraft can accelerate to on four engines and then stop within the runway available.

• 1-eng Fx
• 2-engs in rev (sym)
• 1-eng in GI
• Max antiskid braking

Question 3

VMCA

Answer 3

Minimum speed at which directional control can be maintained.

• ATCS operational
• No. 1 eng Fx
• T/O power on remaining engs
• Max rudder deflection (150lbs)
• Zero rudder trim
• Min T/O weight
• 5 degrees Bank angle away from failed engine

Question 4

CFL

Answer 4

Distance required to accelerate on all engs, experience an engine failure and then either continue the takeoff or stop.

Question 5

Service & Cruise Ceiling

Answer 5

The altitude at max rate of climb at max continuous power and the best climb speed is:

• Service: 100 FPM
• Cruise: 300 FPM

Question 6

Driftdown

Answer 6

Forced descent due to loss of engine(s)

• Maintain drift down speed until descent drops to 100 fpm
• maintain 100 fpm down to appropriate 3/2 engine service ceiling

Question 7

Decent types

Answer 7

• Max Range: Flight idle, clean - L/D max
• Penetration: Max Range to 20K ft - 250kts to level
• Rapid Config: Flight idle, gear/100% flaps - 145kts to level
• Rapid-dive speed: Flight idle, clean - dive speed to level

Question 8

Stalls & Blown Lift

Answer 8

Large disparity between Power-on & Power-off stalls due to blown lift.

In a power-on condition, 46% of the wing is immersed in the propeller slip stream - Blown area of wing

Question 9

Doghouse Chart

Answer 9

• Max Instantaneous Turn - Max Sustained Turn - Max Sustainable Airspeed - Corner Speed - Minimum Airspeed