Return-Path: Received: from wb2-a.mail.utexas.edu ([128.83.126.136] verified) by logan.com (CommuniGate Pro SMTP 4.2b6) with ESMTP-TLS id 244434 for flyrotary@lancaironline.net; Tue, 06 Jul 2004 09:46:09 -0400 Received: (qmail 42965 invoked from network); 6 Jul 2004 13:45:38 -0000 Received: from dhcp-191-101.per.utexas.edu (HELO benefits3.mail.utexas.edu) (146.6.191.101) by wb2.mail.utexas.edu with RC4-SHA encrypted SMTP; 6 Jul 2004 13:45:38 -0000 Message-Id: <5.1.1.5.2.20040706084409.02520f28@localhost> X-Sender: msteitle@mail.utexas.edu@localhost X-Mailer: QUALCOMM Windows Eudora Version 5.1.1 Date: Tue, 06 Jul 2004 08:45:31 -0500 To: "Rotary motors in aircraft" From: Mark Steitle Subject: Re: [FlyRotary] Re: Into the blue again :-) In-Reply-To: Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=====================_319717406==.ALT" --=====================_319717406==.ALT Content-Type: text/plain; charset="iso-8859-1"; format=flowed Content-Transfer-Encoding: quoted-printable Finn, I'll check with Greg to see what the specs are on the BMA hard drive and=20 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 (=B0C) 0 to 60 >Nonoperating Temperature (=B0C) 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"= >>To: "Rotary motors in aircraft"=20 >> >>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 >>> >>> >>>>> >>>>> Homepage: http://www.flyrotary.com/ >>>>> Archive:=20 >>>>>= http://lancaironline.ne= t/lists/flyrotary/List.html >>>>> >> >> >> >> >> >>>> >>>> Homepage: http://www.flyrotary.com/ >>>> Archive:=20 >>>>= http://lancaironline.ne= t/lists/flyrotary/List.html >>>> >> >> >> --=====================_319717406==.ALT Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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 (=B0C) 0 to 60
Nonoperating Temperature (=B0C) 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 -----=20
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=20
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.

--=20
http://www.ernest.isa-geek.org/
"Ignorance is mankinds normal state,
   alleviated by information and experience."
            &nbs=
p;            &n=
bsp;        
Veeduber

   


 Homepage: 
http://www.flyrotary.com/
 Archive:  
http://lancairo=
nline.net/lists/flyrotary/List.html
       




 


 Homepage: 
http://www.flyrotary.com/
 Archive:  
http://lancairo=
nline.net/lists/flyrotary/List.html
     


 
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