Please, How on earth can you compare 332-Certified Engines, to a miserly
70-Non-C/4 Engines!

Maybe we can have a fair representation of engine specific performance
issues, based equal numbers of engines for the group(s), not shown in the
Original Message.  This smacks of Rotax advertisement.  Lets take a look at
an equal data pool provided by Certified vs. Non-C/4 engines, shall we.

Based on the numbers provided, if one extrapolated to equal quantities of
(Cert engs vs Non-C/4 engs) engines:

ENGINE             ACC     PCT     LOP    LOP%
------------------------------------------------------------------
Certified               332       51%     57     17%

Non-C/4            332      52%      62    19%


Beam me up,

Larry A Capps
Naperville, IL

"Despite the cost of living, have you noticed how popular it remains"





-----Original Message-----

Here is an email that I received on another group.  Might help you guys in
this debate.

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%

Of primary interest here, I think is the percentage of accidents where a
loss of engine power occured...17% for certified-engine-powered planes,
vs.
 28% for auto-engine conversions.

It's interesting to note the non-certified four strokes are doing
practically as well as the certified engines.

The Rotax 912/914 series
alone does even better... a LOP% value of 13%.

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