LJHusky1 wrote:

The Results:
> > >
> > > ENGINE             ACC     PCT     LOP    LOP%
> > > ------             ---     ---     ---    ----
> > > Certified          332     51%      57     17%
> > > Auto                95     15%      27     28%
> > > Non-C/4             70     11%      13     19%
> > > Two-Strokes        134    21%      46     34%

I do not have enough knowledge in this field to enter the debate, but felt
it necessary to state the obvious.  This is good information at a high
level, but really doesn't support either side simply because "Loss of Power"
is far too vague to explain which is a better engine design.  For example,
what about fuel starvation?  This has to explain a number of the accidents
and may nothing to do with the engine itself.  Also, It's unclear from the
email if the study only looked at experimental aircraft.  Obviously, when
you have Joe Homebuilder building the plane in his garage, it is going to be
subject to inconsistent results.  Some builders will build the firewall
forward wrong and show up on an NTSB report.  If the study is not specific
to experimentals, then I would expect these results, simply because I
suspect you will have a higher number of accidents in training aircraft
(certified engines), due to pilot error, which drives your numerator up and
your percentage for loss of power accidents down.  Another obvious point,
the plans call for an auto conversion (VW) engine...

This should not be taken to be an attack on the author, Just stating the
obvious (at least to me)  :-)

ps.  What about a prop strike which results in loss of power....  :-)

Dean Cooper
Jacksonville, FL
Email me at dean_coo...@bellsouth.net
See my KR project at www.geocities.com/djramccoop1/KR2_Home.html


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