I agree. On the statistics side for the conclusion chosen these numbers mean nothing. You have to get a lot more specific. This is like saying there are a lot more car accidents than motorcycles. No why, what is the percentage on the road, throw in the driver learning curve, yada yada yada .....
----- Original Message ----- From: "Dean Cooper" <[email protected]> To: "KRnet" <[email protected]> Sent: Saturday, January 10, 2004 7:41 AM Subject: Re: KR>Engines > 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 [email protected] > See my KR project at www.geocities.com/djramccoop1/KR2_Home.html > > > > _______________________________________________ > see KRnet list details at http://www.krnet.org/instructions.html > >
