Message-ID: <389DA400.5E8FFA66@regandesigns.com>
Date: Sun, 06 Feb 2000 08:40:32 -0800
From: Brent Regan <brent@regandesigns.com>
To: Lancair List <lancair.list@olsusa.com>
Subject: RE: RELIABILITY
Mime-Version: 1.0

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Bill, I am shocked.

How DARE you speak out against the traditions of our clan. They have been
passed down to us from the ancients, the time of the Sacred Wrights! They
protect us from evil and chanting them pleases the gods of flight
instruction. Recant or be shunned!

Funny you should mention it though, I never believed those stories. There
was never any data to back them up and I am a freak when it comes to data.

Statistically, every person in this country has one testicle, on average,
except Don Goetz, who now has an extra set in brass. Statistically, if your
parents didn't have any children then neither will you. Statistically, the
most likely time for an engine failure is when it is running. Since running
comprises such a small percentage of an engines life (horologically
speaking) why not just eliminate it? Wouldn't this reduce engine failures
drastically without detracting from an engines primary function of
counterbalancing the tail of the aircraft?

That "Over Square" bit, where does THAT come from? Me thinks it was a joke
played by a flight instructor on an unsuspecting student that worked so well
it was passed on to other flight instructors at one of their secret
handshake meetings held in the tower at midnight. It sure isn't based in the
physics of the engine. Engine stresses are a function of RPM (inertial and
friction loads) and BMEP (combustion loads) and vary from one engine
configuration to another. BMEP isn't even a direct function of MP since
temperature, timing and fuel flow all come into the mix.

IMHO the cable will snap at the first station because at each station the
same load is added but at the first station the most cable is paid out so at
this station the cable will stretch the furthest, making the cable the
longest,  thereby making the derating factor the largest. Another
contributing factor is that the bend radius of the cable at the drum will be
the smallest when the most cable paid out.

Think outside the box. What box? There is a box?

Regards
Brent Regan

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