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Forum: Rotorheads

14th May 2020, 16:41

Replies: 390

Bell 412

Views: 218,373

Posted By Encyclo

Dave Ed, My comments/suggestions were for an...

Dave Ed,

My comments/suggestions were for an AHARS machine. Old day Tarsyns did not seem to get into these oscillation issues.

Good fix would be going to the EPi :D. The T-9 engine is much...

Forum: Rotorheads

14th May 2020, 13:29

Replies: 390

Bell 412

Views: 218,373

Posted By Encyclo

I think you guys have covered all the bases, but...

I think you guys have covered all the bases, but would still like to offer two areas to look into:

1) Governor to AFCU matching: Pratt came out with a bulletin about 15 years ago (sorry, do not...

Forum: Rotorheads

27th Jun 2013, 11:30

Replies: 390

Bell 412

Views: 218,373

Posted By Encyclo

Here you go :8 Data & Brochures...

Here you go :8

Data & Brochures (http://www.bellhelicopter.com/en_US/Commercial/Bell412EPI/1192851374720.html)

Believe demo tour is starting this summer.

Forum: Rotorheads

3rd Jul 2009, 20:14

Replies: 390

Bell 412

Views: 218,373

Posted By Encyclo

and.... Surete du Quebec (Quebec Provincial...

and.... Surete du Quebec (Quebec Provincial Police), NRC (National Research Council, fly by wire, flying simulator), Allied Wings (commercial, de-militarized CH-146 flying as trainers)...

Forum: Rotorheads

1st Feb 2009, 01:06

Replies: 390

Bell 412

Views: 218,373

Posted By Encyclo

Special Inspections for Bell 412 in Military Ops

The answer: NO

All Bell 412s, what ever the paint scheme, have the same inspection requirements. Some customers have elected to slightly modify their schedule because of past incidents/events. And...

Forum: Rotorheads

6th Oct 2006, 21:09

Replies: 390

Bell 412

Views: 218,373

Posted By Encyclo

Not if it's maintained properly:ugh: Refer to:...

Not if it's maintained properly:ugh:
Refer to: http://www.bellcustomer.com/files/Storage/TB%20412-05-201.pdf
:ok:

Forum: Rotorheads

5th Sep 2006, 12:11

Replies: 390

Bell 412

Views: 218,373

Posted By Encyclo

Bell 412 HP & EP share the same drivetrain...no...

Bell 412 HP & EP share the same drivetrain...no difference (including the the ITT/N1/Tq trim switch). They both use a mast torque (phase shift) system.
Differences are: PT6T-3D engine providing...

Forum: Rotorheads

20th Sep 2005, 01:27

Replies: 390

Bell 412

Views: 218,373

Posted By Encyclo

Quite right except both the HP and EP have mast...

Quite right except both the HP and EP have mast torque wich uses mast twist to determine torque with a lot more accuracy than the "No P" and SP wich totalize the torquemeter from eng #1 & #2 as on...

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