Hi Paul,

This is copy of email with attachment of the output housing concept
using aluminium tubing from my CAD MAN. Please let know what you
think.

You will find attached s sketch of the new output end housing
concept. Wall thickness and sizing for the components has not been
estimated yet, this is only a basic layout of what it could look like
if we go with aluminum tubing. I used the original shaft and bearing
arrangement from the previous assembly proposal but there is
opportunity for light weighting and some optimization. Let me know if
this housing concept works for you and I can model it in CAD. If you
have any design recommendations please sketch and send.

PRIVATE

Best regards Zahid


It is a start. If you insist on a spline for the prop flange make the
root of dia. of the spline larger than the OD of the tube. Other wise
you have a stress concentration in a bad area. It will be real hard
to land with no prop and an aft CG :)

What do you have against the Ross design? It is a wonderful
combination of low cost and light weight. 100's have flown.


Just copy the Ross. Start by making a dwg of it in easy to learn
Rhino 3D.


Paul Lamar


Is RHINO 3D freeware ?
It looks like  free for a  trial period.
https://www.rhino3d.com/download

Zahid Rahman


no

cost  about $1000 US

$300 for the student version

sign up for a night class on anything and once you
have it drop the class

Paul Lamar

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