I know that he had a Turbonetics turbo charger, but I don’t know what = model/

Steve Brooks

<snip>

.<= /p>

<= /p>

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.<= /p>

<= /p>

Ed<= /p>

<= /p>

Ed = Anderson
RV-6A N494BW Rotary Powered
Matthews, NC

----- = Original Message -----

From: John Slade

To:<= /font> Rotary motors in aircraft

Sent: Tuesday, July 06, 2004 1:26 PM

Subject: [FlyRotary] Second stock turbo bites the dust

<= /p>

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

<= /p>

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. <= /p>

<= /p>

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).<= /p>

<= /p>

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. :) <= /p>

<= /p>

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 :)

<= /p>

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

Regards,<= /p>

John (boost for all you're worth) Slade<= /p>

<= /p>

Now where's the phone number of that Ozzie guy????<= /p>

<= /p>

-----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: 187.5pt;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: 151.5pt;margin-bottom:.0001pt;border:none;mso-border-left-alt:solid blue = 1.5pt; padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'> =