C-130 Hercules
  E-2C Hawkeye
  Wind Tunnel testing
  e-2c wind tunnel tests
  specific e-2c problems
  directional stability
  roll control
  pitch stability
  stall speeds
  max lift coefficient comparison
  CLmax vs flap
deflection
  flaps 10 deficiencies
  tunnel
characteristics
  wing fatique life
  > vibration
  blr test approach
  thrust coefficient vs airspeed

Vibration

• Two causes of vibration
  • Separated Flow
  • Propeller misalignment
• Both problems are likely to exist on the E-2C.
• Flow visualization may indicate problem areas.
• The propellers are definitely misaligned.
•
The flow angularity at the propeller can be measured in the tunnel.
 

 
 



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