X-Mozilla-Keys:                                                                                 
Bill Freeman wrote:

If the Gs don't go negative, your engine doesn't know or care that
it is inverted. For practical purposes this is the definition of inverted.

 This is how Tex Johnson rolled the Dash 8 (B707 prototype)
 twice over Puget Sound in front of tens of thousands of
witnesses.  No big Boeing airliner has inverted systems, but barrel
rolls (done correctly) are a less than 1.5 G all positive G deal.

Bill

Bill don't forget those Belleville washer springs on those
tapered roller bearings. The more I think about that the
better I like it for a PSRU application. Won't work for
all tapered RB's but looks ideal for this purpose. What
do you think?

Paul Lamar
 
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