Don Dunbar wrote:

Question
Does any one know what is the optimiun thrust center line for the Cozy
MK4 is?
I asked Nat and the response was to scale it off the outline dwg in the
back cover of the plans booklet, I though this strange as there is no
centerline on the dwg.
What is the position of the  CG  for the 360 Lycoming.
Don Dunbar

Bulent Aliev wrote:

It's WL 21 1/2

Don Dunbar wrote:

Thanks for your answer Greg. it seems strange to me that the designer cant give
these detail's as one would think there is a master plan with all the main
dimension's on. I am having trouble coming to grip's with being told to scale of
the so call dwg in the back of hard cover.
When I complete the Cad 2D dwg I will post it for all to use.
As a naval architect and aluminum shipbuilder I find some of the plan's for home
builds lacking in dimensions and all the templates on three sheets of paper with
no center lines for reference strange.
Don Dunbar

I think that was Bulent and not Greg Don. Puffer wants you to buy the motor
mount so there is no need for a thrust line call out. You drill four
holes in the firewall, bolt on the mount and your thrust line comes out
where he wants it. Experimental aircraft "plans" are not really plans
at all but merely instructions on how to build the airplane using many
off the shelf parts.

Paul Lamar
 
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