Today's Message Index:
----------------------
1. 05:49 PM - Re: Trace Engines LP (Peter Bichier)
2. 06:17 PM - Re: Re: Trace Engines LP (Chris)
3. 06:59 PM - Re: Re: Trace Engines LP (BobsV35B@aol.com)
4. 07:38 PM - Re: Re: Trace Engines LP (yourtcfg@aol.com)
5. 08:30 PM - FW: Courage (nico css)
6. 08:41 PM - Re: Re: Trace Engines LP (BobsV35B@aol.com)
Message 1
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| Subject: | Re: Trace Engines LP |
Hey Commanders,
For those of you who are EAA members there is a great article in this April issue
(don't know if you would be able to see it):
http://www.sportaviationonline.org/sportaviation/201004?pg=2&pm=2&fs=1#pg42
A couple of guys geared a 427 Chevy onto a Velocity (4 seater canard) and claim
that they match the weight of a IO-540 (including the weight of the 2 radiators
and 2 alternators: 430 lbs including the prop) but are getting 450 HP. It's
also a retractable gear, so they have a hydraulic system, and reach 200 kts on
15 gph.
some pictures:
http://www.eaa.org/apps/galleries/gallery.aspx?ID=299
They even had to build their own reduction gear box (cause the factory one only
lasted 8hrs...) Great article showing how some amateurs can come up with really
ingenious tricks to make a great flying machine. They have at least 100 hrs
flying with it, hope it's an inspiration for other folks who believe in a good
old small block V8!
[quote="nico(at)cybersuperstore.c"]This always intrigued me. Why would the aviation
environment be so harsh on
an engine. The 350 Chevy engine is a pretty robust engine, easily lasting
100,000 miles and at about 55 mph, it should be good for about 1,800 hours.
Granted, it doesn't run at 75% power all the time, but all sorts of things
seem to go wrong with an automobile engine as soon as they drop it into the
nose or onto the wing of a plane.
Any thoughts?
--------
560 Dreamer
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=293434#293434
Message 2
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| Subject: | Re: Trace Engines LP |
Peter Bichier wrote:
> hope it's an inspiration for other folks who believe in a good old small block
V8!
>
well....sorta....
It's a Dart very high-end aluminum racing engine. They are not what
you'd find in the junkyard Chevy for sure unless you're buying salvage
from nascar.
chris
Message 3
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| Subject: | Re: Trace Engines LP |
Good Evening Peter,
Beautiful airplane. At what altitude are they getting the 230 MPH on 15
GPH?
Happy Skies,
Old Bob
Do Not Archive
In a message dated 4/7/2010 7:49:42 P.M. Central Daylight Time,
pbichie@UTNet.UToledo.Edu writes:
--> Commander-List message posted by: "Peter Bichier"
<pbichie@UTNet.UToledo.Edu>
Hey Commanders,
For those of you who are EAA members there is a great article in this
April issue (don't know if you would be able to see it):
http://www.sportaviationonline.org/sportaviation/201004?pg=2&pm=2&fs=1#pg42
A couple of guys geared a 427 Chevy onto a Velocity (4 seater canard) and
claim that they match the weight of a IO-540 (including the weight of the 2
radiators and 2 alternators: 430 lbs including the prop) but are getting
450 HP. It's also a retractable gear, so they have a hydraulic system, and
reach 200 kts on 15 gph.
some pictures:
http://www.eaa.org/apps/galleries/gallery.aspx?ID=299
They even had to build their own reduction gear box (cause the factory one
only lasted 8hrs...) Great article showing how some amateurs can come up
with really ingenious tricks to make a great flying machine. They have at
least 100 hrs flying with it, hope it's an inspiration for other folks who
believe in a good old small block V8!
[quote="nico(at)cybersuperstore.c"]This always intrigued me. Why would the
aviation environment be so harsh on
an engine. The 350 Chevy engine is a pretty robust engine, easily lasting
100,000 miles and at about 55 mph, it should be good for about 1,800
hours.
Granted, it doesn't run at 75% power all the time, but all sorts of things
seem to go wrong with an automobile engine as soon as they drop it into the
nose or onto the wing of a plane.
Any thoughts?
--------
560 Dreamer
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=293434#293434
Message 4
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| Subject: | Re: Trace Engines LP |
The reason is exactly what you said. A 350 chevy only uses about 25-30%
of its rated power to last 100,00 miles. In marine applications, even wi
th beefed up inererd, they only last the equivalent of 40,000 miles. It
boils down to horsepower over cubic inches. The best airplane engines ma
de had a ratio of about 1/2 HP for each CID (Lyc 0-032 = 150HP, Cont )-4
70 = 230 HP, P&W R-985 = 450 HP). When aviation engines exceed these
parameters, we in the industry call them troubled engines (TIGSO-520 =
435 HP, GTSO 540 = 380 HP, R3350 = 2500HP). The TBO goes way down,
from 2000 to 1200, in some cases even less, and many times they don't mak
e that!! The P-51 Mustang engine is a R.R. V1610 and makes 1500 HP, for
about 250 hours. That is the military TBO!! If only there was some magi
c. But alas, the numbers will almost always tell the outcome. jb
-----Original Message-----
From: BobsV35B@aol.com
Sent: Wed, Apr 7, 2010 6:58 pm
Subject: Re: Commander-List: Re: Trace Engines LP
Good Evening Peter,
Beautiful airplane. At what altitude are they getting the 230 MPH on 15 GP
H?
Happy Skies,
Old Bob
Do Not Archive
In a message dated 4/7/2010 7:49:42 P.M. Central Daylight Time, pbichie@UT
Net.UToledo.Edu writes:
do.Edu>
Hey Commanders,
For those of you who are EAA members there is a great article in this Apri
l issue (don't know if you would be able to see it):
http://www.sportaviationonline.org/sportaviation/201004?pg=2&pm=2&fs
=1#pg42
A couple of guys geared a 427 Chevy onto a Velocity (4 seater canard) and
claim that they match the weight of a IO-540 (including the weight of the
2 radiators and 2 alternators: 430 lbs including the prop) but are gettin
g 450 HP. It's also a retractable gear, so they have a hydraulic system,
and reach 200 kts on 15 gph.
some pictures:
http://www.eaa.org/apps/galleries/gallery.aspx?ID=299
They even had to build their own reduction gear box (cause the factory one
only lasted 8hrs...) Great article showing how some amateurs can come up
with really ingenious tricks to make a great flying machine. They have at
least 100 hrs flying with it, hope it's an inspiration for other folks wh
o believe in a good old small block V8!
[quote="nico(at)cybersuperstore.c"]This always intrigued me. Why would
the aviation environment be so harsh on
an engine. The 350 Chevy engine is a pretty robust engine, easily lasting
100,000 miles and at about 55 mph, it should be good for about 1,800 hours
.
Granted, it doesn't run at 75% power all the time, but all sorts of things
seem to go wrong with an automobile engine as soon as they drop it into th
e
nose or onto the wing of a plane.
Any thoughts?
--------
560 Dreamer
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=293434#293434=====
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Message 5
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Courage.
You're a 19 year old kid.
You're critically wounded and dying in
the jungle somewhere in the Central Highlands of Viet Nam .
It's November 11, 1967.
LZ (landing zone) X-ray.
Your
unit is outnumbered 8-1 and the enemy fire is so intense, from 100 yards
away, that your CO (commanding officer) has ordered the MedEvac
helicopters to
stop coming in.
You're lying there, listening to the enemy machine guns and you know you're
not getting out.
Your family is half way around the world, 12,000 miles away, and you'll
never see them again.
As the world starts to fade in and out, you know this is the day.
Then - over the machine gun noise - you faintly hear that sound of a
helicopter.
You look up to see a Huey coming in. But ... It doesn't seem real because
no MedEvac markings are on it.
Captain Ed Freeman is coming in for you.
He's not MedEvac so it's not his job, but he heard the radio call and
decided he's flying his Huey down into the machine gun fire anyway.
Even after the MedEvacs were ordered
not to come. He's coming anyway.
And he drops it in and sits there in the machine gun fire, as they load 3 of
you
at a time on board.
Then he flies you up and out through the gunfire to the doctors and nurses
and safety.
And, he kept coming back!! 13 more times!!
Until all the wounded were out. No one knew until the mission was over
that the Captain had been hit 4 times in the legs
and left arm.
He took 29 of you and your buddies out that day. Some would not have made it
without the Captain and his Huey.
Medal of Honor Recipient, Captain Ed Freeman, United States Air Force,
died recently at the age of 70, in Boise , Idaho .
May God Bless and Rest His Soul.
I bet you didn't hear about this
hero's passing, but we've sure seen
a whole bunch about Michael
Jackson and Tiger Woods.
Medal of Honor
Winner Captain Ed Freeman
Shame on the American media !!!
Now ... YOU pass this along to YOUR
mailing list. Honor this real American.
Please.
Message 6
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| Subject: | Re: Trace Engines LP |
Good Evening JB,
I do not disagree with your premise, but I do think the R-3350 deserves a
bit better press.
We pulled 3200 HP out of ours and a few versions developed 3500 HP. Our
3200 HP engines had earned a TBO of 3500 hours after only about ten years in
service. The DC-7 and Super Connies equipped with Turbo Compound R-3350s get
terrible press based on reports from folks who flew them when they were
not being operated as they were designed to be operated. That engine had to
be run in the regime that is now referred to as Lean Of Peak. Run it with a
rich mixture and you would burn it up. It was a great engine mounted to
fine flying machines.
We ran our R-2800s for over 3600 between overhauls and they gave us a
takeoff power of 2500.
Lots of pretty good piston powered airplanes out there.
Happy Skies,
Old Bob
In a message dated 4/7/2010 9:38:53 P.M. Central Daylight Time,
yourtcfg@aol.com writes:
The reason is exactly what you said. A 350 chevy only uses about 25-30%
of its rated power to last 100,00 miles. In marine applications, even with
beefed up inererd, they only last the equivalent of 40,000 miles. It boils
down to horsepower over cubic inches. The best airplane engines made had
a ratio of about 1/2 HP for each CID (Lyc 0-032 = 150HP, Cont )-470 = 230
HP, P&W R-985 = 450 HP). When aviation engines exceed these parameters, we
in the industry call them troubled engines (TIGSO-520 = 435 HP, GTSO 540 =
380 HP, R3350 = 2500HP). The TBO goes way down, from 2000 to 1200, in some
cases even less, and many times they don't make that!! The P-51 Mustang
engine is a R.R. V1610 and makes 1500 HP, for about 250 hours. That is the
military TBO!! If only there was some magic. But alas, the numbers will
almost always tell the outcome. jb
-----Original Message-----
From: BobsV35B@aol.com
Sent: Wed, Apr 7, 2010 6:58 pm
Subject: Re: Commander-List: Re: Trace Engines LP
Good Evening Peter,
Beautiful airplane. At what altitude are they getting the 230 MPH on 15
GPH?
Happy Skies,
Old Bob
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