Return-Path: Received: from mail.tsisp.com ([65.23.108.44] verified) by logan.com (CommuniGate Pro SMTP 4.2b6) with ESMTP-TLS id 246621 for flyrotary@lancaironline.net; Wed, 07 Jul 2004 15:48:16 -0400 Received: from stevehome by mail.tsisp.com (Technical Support Inc.) with SMTP id CQA74584 for ; Wed, 07 Jul 2004 15:47:32 -0400 Reply-To: From: "Steve Brooks" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Second stock turbo bites the dust Date: Wed, 7 Jul 2004 15:48:43 -0400 Message-ID: <00b901c4645b$693f8ab0$6400a8c0@WORKGROUP.local> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00BA_01C46439.E22DEAB0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 In-Reply-To: Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_00BA_01C46439.E22DEAB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit I had sent this message earlier, but it never made it through apparently. John, This certainly isn’t good news. I haven’t had any trouble YET, but it would appear that perhaps my days are numbered. I haven’t been hitting the turbo too much in cruise, and just 5 lbs on take off and climb. That’s probably why mine is OK so far. I found it very interesting that turning the mixture more rich increased your RPMs. I would have expected the exact opposite with the lower amount of intake air. I would have thought that you would have to lean it out to increase the power. Maybe the wheel was obstructing the exhaust or something. It certainly doesn’t give me a warm fuzzy feeling. Steve Brooks (Rusty – where did you buy your muffler ?) -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of John Slade Sent: Tuesday, July 06, 2004 1:27 PM To: Rotary motors in aircraft Subject: [FlyRotary] Second stock turbo bites the dust Steve, Dave and anyone else running a stock single stage turbo - you might want to pay attention.... This morning I managed to break Rusty's turbo. I had been cruising at 11,000 ft with MAP 38, rpm 5100 and 175 kts TAS (about 155 IAS) for almost 2 hours when rpm suddenly dropped to 2500. A 1/4 turn of the mixture toward rich brought it up to 3500. Fuel pressure was 40psi, but I turned on the other pump anyway. Coolant temp dropped from 185 to 150 and EGT dropped from 1400 to 1000. Oil pressure was constant at 90PSI. I was 38 miles from home over a desolate little strip by Lake Okeechobee. I figured I could glide to either field from halfway, so I headed home. The engine ran consistently at reduced power. I maintained 11,000 to the halfway point, then began a gradual decent to arrive over the field at 6000. Once assured of the field I tried killing alternate sets of coils - both gave a decrease in rpm - and alternate sets of injectors - both killed the engine, (or reduced rpm enough that I didn't want to know). One [more] high & fast precautionary landing later and the plane was back in the hangar. I'd thought the new Radio Shack resistors on my secondary injectors might have given out, but no. A quick look up the exhaust pipe told the story. The compressor wheel is sitting at an odd angle blocking the outlet, just like last time. Apparently I was trailing a vortex of black smoke as I descended into the pattern. This probably helped keep the spam cans and whirly birds at bay while I took the active. :) One failure might be a bad turbo. A second one is enough to prove to me that the stock turbo just can't handle the punishment of continual boost. (just like Ed said it wouldn't :) I thought you guys running or planning to run the same turbo might like to hear the story as soon as possible. Regards, John (boost for all you're worth) Slade Now where's the phone number of that Ozzie guy???? -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Alex Madsen Sent: Tuesday, July 06, 2004 10:15 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Into the blue again :-) No they use solid state. I think it is 2GB Compact Flash. It says somewhere on their web site. You can get 2 GB CF cards and IDE adapters for them. Alex Madsen -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Finn Lassen Sent: Tuesday, July 06, 2004 7:27 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Into the blue again :-) 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" To: "Rotary motors in aircraft" 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: http://lancaironline.net/lists/flyrotary/List.html Homepage: http://www.flyrotary.com/ Archive: http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_00BA_01C46439.E22DEAB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

I had sent this message earlier, but it never made it through = apparently.

 

John,

This certainly isn’t good news.  I haven’t had any trouble YET, but it would appear that = perhaps my days are numbered.  I = haven’t been hitting the turbo too much in cruise, and just 5 lbs on take off and climb.  That’s = probably why mine is OK so far.

 

 

I found it very interesting that turning the mixture more rich = increased your RPMs.  I would have = expected the exact opposite with the lower amount of intake air.  I would have thought that you = would have to lean it out to increase the power.  Maybe the wheel was obstructing the exhaust or = something.

 

It certainly doesn’t give me a warm fuzzy = feeling.

 

Steve Brooks (Rusty – where did you buy your muffler = ?)

 

 

 

-----Original Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of John Slade
Sent: Tuesday, July 06, = 2004 1:27 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] = Second stock turbo bites the dust

 

Steve, Dave and = anyone else running a stock single stage turbo - you might want to pay = attention....

 

This morning I = managed to break Rusty's turbo.  I had been cruising at 11,000 ft with MAP 38, = rpm 5100 and 175 kts TAS (about 155 IAS) for almost 2 hours when rpm = suddenly dropped to 2500. A 1/4 turn of the mixture toward rich brought it up to = 3500. Fuel pressure was 40psi, but I turned on the other pump anyway. Coolant = temp dropped from 185 to 150 and EGT dropped from 1400 to 1000. Oil = pressure was constant at 90PSI.

 

I was 38 miles = from home over a desolate little strip by Lake Okeechobee. I figured I could glide = to either field from halfway, so I headed home. The engine ran consistently = at reduced power. I maintained 11,000 to the halfway point, then began a = gradual decent to arrive over the field at 6000. Once assured of the field I = tried killing alternate sets of coils - both gave a decrease in rpm - and = alternate sets of injectors - both killed the engine, (or reduced rpm enough that = I didn't want to know).

 

One [more] high = & fast precautionary landing later and the plane was back in the = hangar. I'd thought the new Radio Shack resistors on my secondary injectors might = have given out, but no. A quick look up the exhaust pipe told the story. The compressor wheel is sitting at an odd angle blocking the outlet, just = like last time. Apparently I was trailing a vortex of black smoke as I descended = into the pattern. This probably helped keep the spam cans and whirly birds = at bay while I took the active. :)

 

One failure = might be a bad turbo. A second one is enough to prove to me that the stock turbo = just can't handle the punishment of continual boost. (just like Ed said it wouldn't = :)

 

I thought you = guys running or planning to run the same turbo might like to hear the story = as soon as possible.

Regards,

John (boost for = all you're worth) Slade

 

Now where's the = phone number of that Ozzie guy????

 

 

 

 

-----Original Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Alex Madsen
Sent: Tuesday, July 06, = 2004 10:15 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Into the blue again :-)

No they use solid state. I think it is 2GB Compact = Flash.  It says somewhere on their web = site. You can get 2 GB CF cards and IDE adapters for = them.

 

Alex Madsen

 

-----Original Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Finn = Lassen
Sent: Tuesday, July 06, = 2004 7:27 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Into the blue again :-)

 

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" <echristley@nc.rr.com>
To: "Rotary =
motors in aircraft" <flyrotary@lancaironline.n=
et>
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/<=
/a>
"Ignorance is =
mankinds normal state,
   alleviated by =
information and experience."
           &n=
bsp;           &nb=
sp;           =
Veeduber
 
    =

 Homepage:  =
http://www.flyrotary.com/
 Archive:   http://lancai=
ronline.net/lists/flyrotary/List.html
<= pre style=3D'mso-margin-top-alt:0in;margin-right:1.5in;margin-bottom:0in;marg= in-left: 183.75pt;margin-bottom:.0001pt;border:none;mso-border-left-alt:solid = blue 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'>        = 
 
 
 
  =

 Homepage:  =
http://www.flyrotary.com/
 Archive:   http://lancai=
ronline.net/lists/flyrotary/List.html
<= pre style=3D'mso-margin-top-alt:0in;margin-right:1.0in;margin-bottom:0in;marg= in-left: 147.75pt;margin-bottom:.0001pt;border:none;mso-border-left-alt:solid = blue 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'>      = 
 
  =
------=_NextPart_000_00BA_01C46439.E22DEAB0--