Jerry Hey wrote:

Paul,

Seeing Richard Sohn's  report on the single rotor in which he

achieved

an acceptable idle with a six inch intake forces me to the

conclusion

that I need a test stand badly.
  Granted a test stand is a long way from a dyno, but still a lot

of

intuitive data can be gathered.  We can observe static rpm

performance

with different length intakes for example.

What I am looking for is a simple, cheap  stand that I can test run

my

engine on.  I am hoping that someone has already designed this and

has

some practical experience running an engine with prop  on the

ground.

Can anyone provide a schematic of what a test set up would look

like.

Where is the fuel.  the instrument panel,  etc.   I have  plenty of
room next to my shop and could easily build a shed roof over the

test

set up.

Richard Sohn, come to think of it, must have a test stand.   Maybe
Lynn
does too.  Tracy?   Photos, plans, advice?   All would be

appreciated.

Thanks,  Jerry

It is almost as easy to make a dyno as it is to make a test stand.
This would be a pieces of cake for you. You don't really need to
measure
the trust. That is handy to test props but not really necessary.

You did just get that message I just sent did you not?

Everett Hatch used this type of dyno and I think Power Sport still
uses it.

Paul Lamar

Paul I did receive "Engine Torque Testing" but after scanning the

first

  paragraph I thought it did not apply to me. I deleted the file but

it

was still available and I retrieved it today and viewed your comments
and the photographs.   Building a dyno will be a worthwhile project
when the snow is on the ground and things slow down a bit.   How many
people out there want their own Dynos?  I could build three or four at
one time. I am sure this is one offer that will never be repeated.
Shipping might be painful.   Jerry

Thank about a bolt together knocked down kit. Easier to ship.

Paul Lamar

I might be.
Marc Wiese

 
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