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Date: Tue, 2 May 2006 09:07:36 -0600
From: Bob White <rlwhite@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Engine Run and Static RPM Report
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On Tue, 2 May 2006 07:45:59 -0700
"Joe Hull" <joeh@pilgrimtech.com> wrote:

> > This is somewhat of a gray area, isn't it?
> >=20
> > Suppose you buy pieces of an experimental to assist in the building of
> > yours.  How many 'pieces' can you buy before you can't get the repairman
> > certificate?=20
>=20
> Exactly 49% !  Now, how that 49% is calculated is not grey - it's
> non-existent!  You take your best guess at the total labor that would be
> involved in the original kit or plans and then deduct the estimated labor=
 to
> build the parts you bought. You, the builder, are supposed to have invest=
ed
> 51% of the effort. =20
>=20
> However, this isn't even the way the FAA does it - because many guys spend
> half their building hours on the finish and not on the airframe. So, under
> my little scenario above you could buy a completed RV-x and then spend 700
> or so hours painting it and making it look pretty and claim you built 51%
> based on hours alone! =20
>=20
> Take your best guess!
> Joe Hull
> Cozy Mk-IV #991 (In Phase1 Flight Test -=A010.9 hrs flown)=20
> Redmond (Seattle), Washington
>=20
>=20
Hi Joe,

There is a difference between the 51% rule and the requirements for a
repairman's certificate.  10 people can build an airplane as a group
and use their combined effort to meet the 51% rule (what ever that
51% is).  One and only one of the group can get the repairman's
certificate even if that person only did a small percentage of the
total work.

Bob W.


--=20
http://www.bob-white.com
N93BD - Rotary Powered BD-4 (first engine start 1/7/06)
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