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Forum: Military Aviation

1st Apr 2009, 20:28

Replies: 23

Sea Kings and Cereals...

Views: 5,254

Posted By adrs23

The US Navy flew folding heads and Bifilars for...

The US Navy flew folding heads and Bifilars for years.

Forum: Military Aviation

31st Mar 2009, 21:12

Replies: 23

Sea Kings and Cereals...

Views: 5,254

Posted By adrs23

The Bifilar weighs about 170lb and makes the...

The Bifilar weighs about 170lb and makes the aircraft 'unnaturally' smooth

Forum: Rotorheads

3rd Dec 2008, 19:45

Replies: 17

RRPM changes with airspeed?

Views: 2,121

Posted By adrs23

The explanations given above may be true...

The explanations given above may be true initially but as the aircraft passes minimum power speed the rotor speed will decrease again assuming the engine is at fixed power. rjmp, to which aircraft...

Forum: Rotorheads

2nd Dec 2008, 20:08

Replies: 17

RRPM changes with airspeed?

Views: 2,121

Posted By adrs23

On which aircraft? On many it doesn't increase...

On which aircraft? On many it doesn't increase with airspeed. On some types rpm is increased to delay retreating blade stall.

Forum: Rotorheads

17th Nov 2008, 20:12

Replies: 10

Talk about Tq

Views: 2,498

Posted By adrs23

The torque you see is not a FADEC output, it is...

The torque you see is not a FADEC output, it is an actual torque measured on the high speed shaft. When the FADEC limits on Ng or TGT you have reached a power limit so the fuel flow is effectively...

Forum: Rotorheads

15th Nov 2008, 22:14

Replies: 10

Talk about Tq

Views: 2,498

Posted By adrs23

From memory I think the RTM Apache Tq limiter is...

From memory I think the RTM Apache Tq limiter is a genuine Tq limiter so as Nr decreases Tq will remain approximately constant until it eventually releases (probably). With a Sea King engine in...

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