I know that
he had a Turbonetics turbo charger, but I don't know what
model/
Steve
Brooks
<snip>
.
I never hear it
Richard? from Blue Mountain Instruments? ever had any trouble with this
turbo unit. I forget which one it was, but it was not the stock
Mazda.
Ed
Ed Anderson
RV-6A N494BW
Rotary Powered
Matthews, NC
----- Original Message -----
To: Rotary motors in aircraft
Sent: Tuesday,
July 06, 2004 1:26 PM
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" <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 :-)
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
What a difference that makes. Also calibrated the PSS AOA and the Dynon
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
but nothing urgent. Then only problem that I had today was that my Sony
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
then display the blue screen and then reboot. After the 4th time it
to reboot again so now I'm forced to use the system recovery disc and
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
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