Today's Message Index:
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1. 07:43 PM - Piet Accident Report '66 to '03 Prelim (Rcaprd@aol.com)
2. 09:14 PM - Re: Piet Accident Report '66 to '03 Prelim (Doc Mosher)
3. 09:14 PM - Piet accident report (Doc Mosher)
4. 10:44 PM - Hinges (dave rowe)
Message 1
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| Subject: | Piet Accident Report '66 to '03 Prelim |
--> Pietenpol-List message posted by: Rcaprd@aol.com
Piet Group,
I've been spending alot of time researching and organizing this infomation.
Most of the info came from the NTSB web site, that I had to look through month
by month, then copy paste to my word pro program, then edit the text so that
it was legible. The NTSB has changed it's format a couple of times over the
past 37 years. It goes back to '62, but they just listed large aircraft in '62
& 63.
I'll go into more detail about my findings, in my next e-mail.
Here is my preliminary report.:
Total Pietenpol / GN1 Accidents that I found from the present back to '66
Reported Accidents - 91
Fatal Injuries - 10
Serious Injuries - 20
Minor Injuries - 12
No Injuries - 64
Engine Failures - 37
Fuel Related - 8
Stall / Spin - 27
Landing Gear Collapsed - 13
Flipped inverted / Nose Over - 12
Other - 6
So far it seems lack of time in type is a factor in the hard landings, ground
loops, and stalls. The other thing that comes to light, is that after an
engine failure, a stall / spin occurs. I think most will be interested in a
more detailed report, which I'll send out next. An informed pilot is a safer
pilot.
Chuck Gantzer
Wichita KS
NX770CG
Message 2
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| Subject: | Re: Piet Accident Report '66 to '03 Prelim |
--> Pietenpol-List message posted by: Doc Mosher <docshop@tds.net>
Chuck -
Thanks for the good work on the Piet accident record. I shall be most
interested in the final report.
I am seeing Bob Mackey today. He is now the Falcon Insurance
representative here in Oshkosh. He was the EAA vp of chapters, and also
the EAA insurance guy. I want to be sure that Piets get a fair shake on
insurance, with both "standard" airplane engines (like your Continental)
and with converted automobile engines. I do not lump all converted auto
engines in one box. I think the Ford, the VW of various types, and the
Corvairs should each have their own evaluation. Same goes for Subaru and
Ford Escort, etc.
I know I am prejudging the results, but I think you will find that the Piet
may have the stall/spin leading the way in causes of accidents. Some of
these stall/spins are caused by engine failure. And in most certificated
aircraft, the engine failure is caused by fuel problems. In fact, the
Piet, being such a high drag airplane, the inattention of a surprised pilot
may well lead into an inadvertent stall/spin more than the cleaner designs
(152s, 172s, etc.) the Piet pilot trained on or has most experience in. I
have a hunch that most of the Piet stall/spins are not straight ahead
classic stalls. They result from a turn, often at low altitude, as the
airplane is being lined up for the landing and the pilot is not paying
attention to airspeed.
I have long felt that an angle of attack indicator is almost a mandatory
requirement for such high drag airplanes. These would be non-electric, of
course. I love the Piet, but you should never treat gravity with levity,
lest the earth arise and smite thee.
Again, Chuck, thanks for the good work. I have an idea of how long and
lonely the search can be.
Doc
Message 3
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| Subject: | Piet accident report |
--> Pietenpol-List message posted by: Doc Mosher <docshop@tds.net>
Sorry. I didn't push the right button to write only to Chuck Gantzer. I
didn't mean to clutter up everybody else's mail.
Doc Mosher
Oshkosh USA
Message 4
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--> Pietenpol-List message posted by: dave rowe <rowed044@shaw.ca>
Have just completed all the tail feathers, what a weekend. I know from
my R/C big scale stuff, that gapless hinges make a huge difference in
handling, especially at or near stall. Given the data coming out of the
NTSB search (great work), I definately want gapless hinges on all
surfaces. My thoughts for the ailerons and elevators was the use of
stainless steel marine piano hinges, they are strong, light, can be cut
to length, and are affordable. Please contribute your thoughts and
experiences. Thanks guys, Dave Rowe
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