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-   -   AirCrane Transmission mounting (https://www.pprune.org/rotorheads/227430-aircrane-transmission-mounting.html)

Phoinix 24th May 2006 07:00

AirCrane Transmission mounting
 
I'm making a model of Air Crane, and i have one thing bothering me. How is the main rotor transmission mounted on to the fuselage? Didn't find anything useful on the pictures and photos available to me.

spinwing 24th May 2006 10:54

With lots and lots and lots of bolts ....


:}

Phoinix 24th May 2006 11:42

No sh*t, Sherlock :E

Bolted directly to the frame or what?

Maverick Laddie 24th May 2006 12:39

Bolts directly on to fuselage Three bolts at 12 oclock Three at 3 oclock Three at 6 oclock and 3 at 9 oclock, don't forget the 3 degree tilt to the left.

Phoinix 24th May 2006 13:07

Thank you! 3° tilt to the left, i'll try to make that accurate. Any doublers on the airframe on the place where the trany is bolted?

Maverick Laddie 24th May 2006 13:33

The MGB is mounted in a square hole the lower portion protrudes through into the hell hole the mount itself if memory serves me are made up of castings or lift beams to which the deck plating if fixed

I Build 92's 24th May 2006 14:42

MGB mount
 
The MGB is bolted directly to 4 frames which form the "box" in the center of the fuselage similar to all other Sikorsky models. There is so much "stuff" around the gear box, I don't recall any doublers in the area....of course its also been 20 years since I last worked on the darn thing! We rebuilt the cranes destryed in the tornadoe in Windsor locks CT...send me a note with an e-mail address and I'll send you a few pictures.

Phoinix 24th May 2006 15:06

Thank you all for your answers, PM sent. :ok:

Aviator Jobs 24th May 2006 15:49

:D a baked tin and sticky back plastic should do the trick...

PT6ER 27th May 2006 17:23

3 degrees left (aft looking forward) and 3 degrees forward.

Are you building an E or F model??

Phoinix 27th May 2006 19:25

I'm building the F model. WILCO on the degrees, and thank you!


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