I just read a full accident report on an experimental aircraft that was involved in a fatal crash. There were too many contributing factors to the fatality to list here (read the report), but the NZ CAA determined the vertical impact G load was near 20 G's. And the horizontal G load was over 7 G's.
Of interest was the fact that the restraint system was attached to the seat frame, which was welded to the stringers (aircraft fuselage frame). The welds failed on the left hand side. This allowed the pilot to be flailed into the glare shield and instrument panel. Instant death. He was 80 years old, not that that had any impact on the event.
It is my thinking that the 20 G's were an overall contributing factor to the welds failing.
How many 20+ G impacts by RV aircraft have been survived by the pilot? Are 20 G crashes very common, and are they normally easily survived by pilot/passengers?
While this particular fatal crash did not involve an RV, it makes for educational reading. The report is well written by the New Zealand CAA.
Here is a link:
https://www.caa.govt.nz/assets/legac...-SMF-Fatal.pdf
I'm not seeking a critique of the accident aircraft (beat to death already), rather information on harness systems.
And, how many here have a restraint system that would easily withstand a 20+ G load, and save your butt? Probably everyone on this forum.
I just ordered a custom harness from Crow Enterprises. In addition, we are re-making our seat cushions, utilizing special G load absorbing memory foam. You know, that Green, Blue and Pink stuff!
20+ G Deceleration...Survivable?
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