"Marc J. Zeitlin" wrote:

There have been many accidents, incidents, and crashes of VE's, LE's,
Velocity's and COZY's over the past 20 years. I have never heard of an
injury caused by the engine coming through the firewall, nor have I ever
heard of a case of the engine coming through the firewall.

Remember, if you've caused enough of a G load for the engine to push the
mount through the firewall, you've already turned the passengers to jelly.

I think there are a lot more important things to worry about.

Agreed. I chuckled when I read similar concerns voiced elsewhere
recently. In a properly designed pusher, such as a VE or LE , it is a
non-issue. Yes, there have been fatalities in VEs and LEs where the
engine has come through but those were in crashes in which the impact
angle and speed was such that the occupants were dead whether the
engine came through or not. And no, in the VE and LE there is no
weight penalty incurred in "beefing up" the aft fuselage structure to
prevent the engine coming through as suggested (although somewhat more
generally) elsewhere.

David O -- http://www.AirplaneZone.com