Paul As per today all major cars are built with front drive and
almost built with a wheel bearing hub integrated with double ball
bearing who act as trust in both sides and as been proof since lot of
years..
I found one who can be use to match the prop stubs by machining
those hole stubs between the original wheel stubs and remove the
existing stubs and enlarge them to remove excess weight'.
The wheel flange have to be reduce in diameter to standard prop
shaft size flange.
The attaché triangular flange can be machined to .200" thickness to
reduce weight and all these parts are soft enough to be machined.
The hub can be hold on pressure fit and with 3 long bolts from the
inside aluminum casing and the head seal with orings to hold the oil
pressure inside the gears chamber, or 3 long treaded studs.
The aluminum casing can be machined from solid bar or get it cast
from foundry, it can also be added some ribs for more stiffeness
You can find the wheel hub bearing in Ebay at $40.00 and up depends
on quality.
The both shaft are about $80.00 from Slauson Transmission Parts,all
other parts as sun gear ,planet.ring gear,front ring,drum forward
,bearings less then $200 from Slauson few years ago
I am sending you several sketch showing how to built this gear box
and it might be a few more pounds of Tracy one , much cheaper and
fast to built with almost available parts.
JEAN PRUDHOMME
Jean also sent some picture of his rotary powered scale Piaggio
Avanti he is working on. Perhaps by mistake :) Interesting nose
gear.
BTW Jean set your epson scanner to save as jpg instead of pdf. Then
you can attach the jpg's to email.
Paul Lamar
Paul
I just finish to extend my garage with a total length of 50 ft and all
my tool are in place,i will have enough space to built the fuselage plug.
I am still building my original gearbox with internal passage for the
constant speed and install a stator.
I came up with the hub idea for someone want to built his own cheap and
fast to built.
I do have all steel and aluminum parts for the gear box
Include the last 2 Velocity I built from Google.com and enter N274JP
and clic Prudhomme
JEAN PRUDHOMME
We were in south Florida so we visited Jean Prudhomme.
Jean is a very prolific and talented aircraft builder. He has been
working on airplanes
since the late 60's. So far he as built nine. Many Velocities.
Here are some pictures of gear box parts he intends to use on his 3/4 scale
Piaggio Avanti.
Paul Lamar
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