The Lancair IV caught my attention because it's quite a hot rod so I started to look up some info on it. AT the bottom of the Wiki page, it says that according to the NTSB, there have been 19 crashes resulting in 17 fatalities.
I'm guessing this is an unusually high number.
Does anyone know the reason for this? Does the Lancair IV have some nasty handling characteristics? or does it just not protect its occupants very well in a crash?
Is there a site where more info can be found?
I'm currently writing a series of articles for KITPLANES magazine, looking at the accident statistics for various homebuilt types. Lancair was covered in the August issue. The article was based on my assessment of NTSB accident reports for homebuilts from 1998 to 2007, inclusive (ten years).
A general summary of results:
1. Pilot Error rate for Lancair IVs was fairly typical for high-performance homebuilts. Lower than the Glasair, RV-6, and Kitfox, higher than Velocity.
2. The Pilot Error results include a much lower rate of pilot judgment errors (fuel exhaustion, VFR into IMC, etc.). When you look just at stick-and-rudder issues (overshoot/undershoot, stall/spin, etc.), the Glasair is a bit better and the RV-6 is about the same.
3. Lancair IV stall/spin rate is about average, for homebuilts. However, the Lancair IV saw a greater percentage of accidents that were *triggered* by a lack of airspeed control. Lancair pilots tended to stall less when the accident was triggered by a mechanical fault.
4. Of the accidents where pilot error was *not* involved, almost 50% of Lancair IV accidents were triggered by either an engine mechanical failure or "undetermined engine failure." My speculation is that this might be driven by the fact that it's much more difficult to make a no-damage forced landing in a Lancair after an engine failure than, say, a Zenith. The Lancair IV has a performance envelope about the same as a Curtiss P-40; the options are just NOT going to be there.
5. Of the homebuilts I've examined, the Lancair IV has the highest fatality rate (percentage of accidents resulting in a fatality)...about 41%. Homebuilt average is around 25%.
6. Based on average fleet size during the study period, the Lancair has the second- or third-highest accident rate of the homebuilts I've looked at. About 1.5% of the fleet per year, vs. about 0.9% overall. However, this is skewed by the number of inactive homebuilts, which does not affect Lancair as much (one must assume that people don't just shove a $200K kitplane into the corner of a hangar and abandon it...).
Ron Wanttaja