Using the patented Mavis Beacon "Hunt&Peck" Technique, platypus
typed
Wicked Uncle Nigel wrote:
Using the patented Mavis Beacon "Hunt&Peck" Technique, "TOG@Toil"
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On 6 Mar, 11:03, bod43 wrote:
On 5 Mar, 21:57, "Morgans" wrote:

snip interesting stuff

Maybe someone on uk.rec.motorcycles might have an
idea as to the expected life span of a hyabusa engine
when operated in a constant load regime,
say at 130bhp.

You'd need to boost the low and midrange torque to swing a prop, as
props rotate relatively slowly, don't they? I think a 'Busa engine
would last forever is detuned to 130bhp.

Depends on the prop, but I would think that gearing down would be the
way to go.

The thing that everyone seems to forget when promoting automotive
engines for aircraft is that most piston aero engines have a very hard
life. Take-off and climb is full power or very nearly, then they
throttle back to cruise at 75% or thereabouts. The only roadgoing
vehicles that approach that sort of use are in motorsports, and how
long do they last?

Full *rated* power. If the Bus engine were to be de-rated to 130BHP it'd
barely be breaking sweat in the climb.

Of course, you could have one of those cool "War Emergency Power" seals
on the throttle to enable you to get more power when your microlight has
a pair of marauding Bf109s on its tail...

--
Wicked Uncle Nigel - "He's hopeless, but he's honest"

It's important is that last ell.