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 Spratt 103

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Posts : 106
Join date : 2008-07-22
Location : Mulvane Ks

PostSubject: Spratt 103   Wed Jul 23, 2008 3:24 pm

The Spratt 103 is an interesting concept, anyone know anything about it?

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Posts : 1
Join date : 2008-08-03

PostSubject: Re: Spratt 103   Sun Aug 03, 2008 10:35 pm

ANYONE got a set of plans for the SPRATT 103???

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Posts : 8
Join date : 2008-11-11
Location : Fresno, CA USA

PostSubject: Re: Spratt 103   Tue Nov 11, 2008 4:17 am

Chris wrote:
The Spratt 103 is an interesting concept, anyone know anything about it?Chris

There exists a Spratt forum on Yahoo. Some info gathered there. Plus there is a Spratt 103 site maintained by the Spratt 103 designer. I have read everything about it I can find. Plans aren't released yet. Supposed to be before the year is out, but who knows? Anything can happen. Bernard Geffray (the designer/builder) recently had a mishap while testing various esoteric permutations. Think he is exploring the extremes of the design so folks like me don't have to. I am also interested in this design.

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Posts : 2
Join date : 2009-02-20

PostSubject: Spratt103 Engine Modifcations   Fri Feb 20, 2009 3:46 pm

Hi: I was recently informed by Bernard Geffray the designer iof the Spratt103 that he had installed a set of grooves in the Briggs& Stratton engine he is powering the Spratt103 with. For information on Grooves go to My friend Sing holds a US Patent on the Grooves cyclinder head modification.
Sing was the first trike builder flier in his State in India with over 1500 flying hours. His trike has a Rotax 503 engine with Grooves which flies as no other Rotax can. I introduced my two friends' As soon as Bernard gives me the results I will pass them on to this form.
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