Finn,
I'll check with Greg to see what the specs are on the BMA hard drive and
report back .
Mark
At 08:26 AM 7/6/2004 -0400, you wrote:
Hmmm.... Doesn't the Blue Mountain
and other glass panels use harddrives?
I thought that the inside of a harddrive was sealed.
Picking a random drive on Seagate's website:
Environmental
Operating Temperature (°C) 0 to 60
Nonoperating Temperature (°C) 70 to -40
Operating Shock (Gs) @ 2 msec 63
Non Operating Shock (Gs) @ 2 msec 350
Acoustics,Idle (Bels-typ sound power) 2.2
No mention of ambient pressure.
Finn
Ed Anderson wrote:
Boy, now here is an example of what kind of information we
have access to on
this list. Now that Ernest mentions it, yeah, I recall that the
heads of
the hard disk float on a cushion of air - but, I would never have thought
to
associate altitude with hard drive crashes! Thanks Ernest.
Ed
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message -----
From: "Ernest Christley"
<echristley@nc.rr.com>
To: "Rotary motors in aircraft"
<flyrotary@lancaironline.net>
Sent: Sunday, July 04, 2004 5:48 PM
Subject: [FlyRotary] Re: Into the blue again :-)
Haywire wrote:
Message Today we flew for 6.3 hrs and everything
was great again. We
calibrated a few items including the electronic governor for the IVO
prop.
What a difference that makes. Also calibrated the PSS AOA and the
Dynon
AOA
and they each are phenomenal tools. The engine is running great with
no
major issues at all. I do have a little tweaking to do on the low MAP
table,
but nothing urgent. Then only problem that I had today was that my
Sony
Vaio
laptop doesn't seem to like high altitude. I have a small Vaio and
have
built a place for it to mount easily and use it to display Jeppenson's
FlightMap in-flight GPS program. It works great until 10,300' where it
would
then display the blue screen and then reboot. After the 4th time
it
refused
to reboot again so now I'm forced to use the system recovery disc
and
wipe
the disc clean. I hate to think about all the files that I said I
would
back-up soon... :-(. My old laptop still works fine(using it now) so
maybe
I'll try it tomorrow.
All hard drives have a spinning platter with a read/write head
riding a
cushion of air just above it. Go to 10,300' and there isn't much of
a
cushion left. The head will fall into the platter turning at 7500
or
10000 rpm. I think you'll be lucky if the drive ever works again.
--
http://www.ernest.isa-geek.org/
"Ignorance is mankinds normal state,
alleviated by information and experience."
Veeduber
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