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Forum: Rotorheads

9th Jan 2010, 04:32

Replies: 390

Bell 412

Views: 218,373

Posted By Shawn Coyle

If you've warmed up the engines, then icing in...

If you've warmed up the engines, then icing in the air lines shouldn't be a problem.
We had an iced up air line after a blizzard many years ago. -The engine went from idle to 117% N2 in less than...

Forum: Rotorheads

1st Jul 2009, 14:17

Replies: 390

Bell 412

Views: 218,373

Posted By Shawn Coyle

Check the inlet system?

Check the inlet system?

Forum: Rotorheads

25th Jan 2009, 23:31

Replies: 390

Bell 412

Views: 218,373

Posted By Shawn Coyle

At one point in my brief career at Bell, I was...

At one point in my brief career at Bell, I was assigned to flying the 'flying whirl stand' Bell 412.
We had a 'rogue' blade that wouldn't track, and in desparation, I had the mechanic watch while I...

Forum: Rotorheads

6th Nov 2008, 22:46

Replies: 390

Bell 412

Views: 218,373

Posted By Shawn Coyle

Gomer: Sounds like someone understood the AFCS!...

Gomer:
Sounds like someone understood the AFCS!
My only complaint was that the stick forces working against the force trim were too high, and that the system didn't do a really good job of...

Forum: Rotorheads

17th Jul 2008, 10:13

Replies: 390

Bell 412

Views: 218,373

Posted By Shawn Coyle

Oracle: Having flown the 412 in ATT mode in...

Oracle:
Having flown the 412 in ATT mode in hover and some quite precise landings (but not running landings - you're right), I had no particular difficulty in controlling the helicopter smoothly....

Forum: Rotorheads

17th Jul 2008, 01:32

Replies: 390

Bell 412

Views: 218,373

Posted By Shawn Coyle

I think you'll find that prolonged ground...

I think you'll find that prolonged ground operations in ATT mode are what you're thinking of. The actuators can motor the stick to try and make the helicopter maintain a constant attitude and with...

Forum: Rotorheads

16th Jul 2008, 13:58

Replies: 390

Bell 412

Views: 218,373

Posted By Shawn Coyle

Oracle: Beg to differ with you. Flying a 412 in...

Oracle:
Beg to differ with you. Flying a 412 in ATT mode is the only way you'll get any modes of the autopilot to work.
It works just fine in all modes of flight, including the hover. You just need...

Forum: Rotorheads

6th Oct 2006, 19:44

Replies: 390

Bell 412

Views: 218,373

Posted By Shawn Coyle

A slightly different subject related to the 412....

A slightly different subject related to the 412. Does anyone have problems with the gimbal ring and related swashplate parts starting to fail at 300-500 hours?

Showing results 1 to 8 of 8