Hello Paul,

Looking around on the net at the E40D planetary transmission gears and found this at http://www.fordtransmissions.net/level.itml/icOid/243

 813-333-3823 call now

is there any difference to the gears that you use in your aircraft and how many hours lifespan would they have

E40D / 4R100 / C6 (RETRO-FIT) STRONGEST COMPLETE GEAR ASSEMBLY EVER MADE! <http://www.fordtransmissions.net/prod.itml/icOid/303>**

SKU:
$299.99

LIFETIME WARRANTY. THIS SET CAN HANDLE OVER 1000 HORSEPOWER!

ALL 6  PINION HEAVY DUTY STEEL PLANETS,

COMPLETE W / HARDENED SHELL, RING GEARS, HUBS & BEARINGS

Please let me know your thoughts

Regards

George From Aus


Those are good links but you need to know if those are front planets or rear
planets. Buy only the six pinion versions.

Paul Lamar


Hi Paul,

Thanks for that I don’t feel that I would be making a bad decision if I invested in a set.

They claim on the site  that there are both front and rear 6 pinion all for $299.00 + bearings etc.

I may only need the one reduction which is the rear planetary and as I understand the configuration to get the greatest reduction is to hold the hub and drive the sun to the planets. If I have understood what I have been following on your site should be 3.17-1 is that correct?

The next thing is to work out how it all goes together .


Kind regards

George from Aus

As far as I know nobody has ever worn out a set.

If you are building a prop reduction unit it is OK.

I don't think they are strong enough for a helicopter final drive.

Here is what a bell final drive looks like.

Rumor has it somebody is going to be making Bell 47 again.

Paul Lamar


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