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Forum: Rotorheads

19th Jan 2019, 13:44

Replies: 32

Compressor stall in a 206L

Views: 10,269

Posted By LRP

Here is a screen shot of the valve sequencing for...

Here is a screen shot of the valve sequencing for a C47 engine (Bell Training Handbook). I believe the C30 is the same or very close. I think the 92% value is related to the inducer bleed port...

Forum: Rotorheads

19th Jan 2019, 03:13

Replies: 32

Compressor stall in a 206L

Views: 10,269

Posted By LRP

The Bleed Valve on the 250 series engines has no...

The Bleed Valve on the 250 series engines has no adjustment/rigging that I know of, it either works properly or it doesn't and you replace it. It doesn't cycle as a function of N1/Ng, there is no...

Forum: Rotorheads

18th Jan 2019, 15:47

Replies: 32

Compressor stall in a 206L

Views: 10,269

Posted By LRP

It's a copy/paste from the L-3/L-4 RFM. Same...

It's a copy/paste from the L-3/L-4 RFM. Same procedure in the 407 (except the reference to TOT, N1, N2 changes to MGT, Ng, Np). Been the same procedure for years. First step in all is collective...

Forum: Rotorheads

18th Jan 2019, 02:47

Replies: 32

Compressor stall in a 206L

Views: 10,269

Posted By LRP

FYI 3-3-E. ENGINE COMPRESSOR STALL/ SURGE ...

FYI

3-3-E. ENGINE COMPRESSOR STALL/
SURGE
• INDICATIONS:
1. Engine pops.
2. High or erratic TOT.
3. Decreasing or erratic N1 or N2.
4. TORQUE oscillations.
• PROCEDURE:

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