In a message dated 8/25/2005 12:56:07 P.M. Central Standard Time,
marv@lancaironline.net writes:
Your
statement on my post to "cut the master switch" . Quote "
The
worst suggestion I have ever heard for a modern equipped aircraft'"
does
you no credit..
Well Don, let me see.... you want to cut all communication possibilities,
location information (GPS, Transponder), backup pilot (AP), turn coordinator (if
S-Tec AP equipped), Air Traffic Detector info (if so equipped), electronic
ignition system (if so equipped), engine data (if so equipped), any lights at
night (if so equipped), stereo music playing the 1812 overture to match the
lightning and thunder (if so equipped), O2 supply equipment (if so equipped),
electric attitude info (if so equipped), critical AOA info (if so
equipped).......yada, yada, yada...... just to diagnose an unrelated
problem.
Then, after struggling with keeping the airplane aloft without electrics
and doping out the failure checklist (mentally or physically), the Master
may be turned on only to watch time elapse while everything struggles to
restart, including the alternator (the Master did take out the field voltage
too, didn't it?).
Gee, the last time I had a gear problem (Skymaster, Duluth, MN, 1997), all
I asked ATC was "could I circle north about three miles until I get this
straightened out?" Response, "Sure, keep us informed." Luckily, I had a
passenger that could read and asked if he would scan the "emergency gear
extension" checklist - it turned out that low hydraulic fluid would stop the
pump, but allow the hand pump to further drain the reservoir and lower the gear
to the green light (oh, that's right, I need power to see that).
Otherwise, lacking a human passenger (some take their dogs with
them) I would have used the AP to do the reading - oops, I meant flying
whilst I did the reading, pumping, brow mopping, dog calming, etc.
Turning off the Master should only be done when the electrical fire's smoke
is in the cockpit (public area, no smoking allowed), unless there is an
essential bus system - then, on with the E-Bus, off with the Master (at least
1/2 my e-ignition is now still operational). Turn the AP on, keep ATC
informed, all the while flying the aircraft (oh yeah, the AP is actually
doing the flying while I try to figure out what is really
wrong). It certainly should not be done because of a gear problem when
so many other KISS alternatives are available - like removing all the power
to the gear system by pulling one breaker - then thoughtful discourse may
occur with your good angel as to the next step (training and
experience aside). That's KISS.
OK, I'll take one debit even though I don't know the pin
number.
Scott Krueger
AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL
(KARR)
PS:
Experience survived is like training except the test score is a bit
different and the teacher is unforgiving if you try again while still under the
pink slip from the last oops.