Stu Fields a écrit:

What kind of TBO is expected @ 12,000 rpm?? Some guy who has been
playing with engines for quite awhile has a rule of thumb that says
4500 is a kind of mark for piston engines beyond which the durability
starts decreasing more rapidly???

It's not the rpm but the piston speed which cause wear.
Bikes engines have very slow piston speed.
The challenge is the PSRU.

At this time, nobody built an alternate engine lighter than an
aircraft design engine.


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une télé qui s'éteint et c'est un cerveau qui s'éveille
Philippe Vessaire Ò¿Ó¬