Don Dunbar wrote:

Hi Paul and group,
Well I have been looking for a planetary gear set with a

better ratio

that would suite our application. I have found something that will

interest

the turbo engine and will handle

the 20b turbo. I am awaiting the price for a new reduction

gear from

the manufacturer as a spare part. The reductions available are

1.52, 1.88,

2.1, 2.57 and 2.91 to 1. This is a 6

geared planetary and weights 44 lbs. with drive flange of 5"

diameter

to suite the propeller. For the marine industry driving a

propeller it is

rated at 550 hp at 5000 RPM or 595 lb

ft.  At input speed for 5% of the total time and 80% of rpm

for 400

hours per year. This gear box with its cast steel casing with an

adapter

plate will bolt to the series 5 auto

bell housing without modification. I have taken photos of

this unit

which is 8.5 " long, I will post the photos in the next few hours

after I

download from the camera. If you are

interested go to http://www.velvetdrive.com for info, the

reduction

unit is the bottle looking piece that hangs of the 1 to 1

reversing unit.

Interesting, but did you look at the weight?  They claim 95

lbs. dry.

Russell Kent

Russell it is only the bottle shaped output end and it weight's

44 lbs. I

have one and had it on the scales yesterday.
Don Dunbar

I would love to see some pictures of it dis assembled Don.

Paul Lamar

        PT-6 gearboxes~$400 used. Weight?? Virg

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