Diesel engine

On Mon, 26 Apr 2004 20:06:46 -0400, "George A. Graham"
wrote:

Mounting on a trailer or truck lets you move around the countryside,
so you don't make everyone angry. (Even the airport managers would shoo
me off after a few hours of prop/engine noise).

I think it actually will fit in the back of my pickup (haven't taken
the time to measure yet), and as you know, we live right next to some
pretty dense woods. I could trundle it up to the logging landing
above us and run it all day without bothering anyone.

My worry is to tie it down REALLY well because I will be using the IVO
prop to generate the load and I'll have to pitch the prop to allow the
engine to make 4,800 rpm, after it's run in a bit. At that rpm, there
will be lots of thrust, don't want that engine and stand leaping off
the truck and wailing into the woods. ;-)

I feel I need to have a hobbs meter and carefully thought out
documentation of the engine runs so that the DAR can see that the
engine has been thoroughly tested. So all the instrumentation that
the engine would normally have in the cockpit, should be there on the
little instrument panel I've attached to the test stand. That means
the EGT guage so I can adjust the mixture and test to see if it will
run smoothly lean of peak. I need to be standing there in the howling
wind taking down readings at regular intervals throughout the testing.

Corky Scott

In charles.k.scott@
dartmouth.edu wrote:

I think it actually will fit in the back of my pickup (haven't taken
the time to measure yet), and as you know, we live right next to some
pretty dense woods. I could trundle it up to the logging landing
above us and run it all day without bothering anyone.

If it were me, I would try to pick up a used trailer and turn that into
my test stand. Then you won't be risking damage to your engine from
repeated loading/unloading operations every time you want to do some
testing. This assumes that you will want to use your pickup truck for
things other than a test stand.

run smoothly lean of peak. I need to be standing there in the howling
wind taking down readings at regular intervals throughout the testing.

You could get one of those surveillance camera setups that are
advertised in various places and mount it to read your instruments. You
would then be able to monitor them from the relative comfort of your
pickup cab.

----------------------------------------------------
Del Rawlins-
Remove _kills_spammers_ to reply via email.
Unofficial Bearhawk FAQ website:
http://www.rawlinsbrothers.org/bhfaq/

Del Rawlins wrote in message ...
In charles.k.scott@
dartmouth.edu wrote:

I think it actually will fit in the back of my pickup (haven't taken
the time to measure yet), and as you know, we live right next to some
pretty dense woods. I could trundle it up to the logging landing
above us and run it all day without bothering anyone.

If it were me, I would try to pick up a used trailer and turn that into
my test stand.

Uh, what about putting a muffler on it? Won't it be flying with
some kind of muffler or tuned exhaust system or something that
cuts the noise?

Hey, I'm just asking.

--

FF

On 28 Apr 2004 15:23:49 -0700, (Fred the Red
Shirt) wrote:

Uh, what about putting a muffler on it? Won't it be flying with
some kind of muffler or tuned exhaust system or something that
cuts the noise?

Hey, I'm just asking.

A muffler was definately part of my original plans, but I just don't
have room to install a muffler and route the exhaust in behind the
radiator to augment the exit airflow. I could test the engine with
several mufflers clamped on though.

It may not make an enormous amount of noise because the exhaust
headers will only be 1 3/8" in diameter and each runner will be 40
inches long. Then they collect into two 2" tubes that themselves will
be about three feet long.

The noise will definately be directional so I might be able to turn
the engine away from the houses and run it without disturbing anyone.

We live next to the woods so if I aim it at the trees... I'll just
have to see how things go.

First I have to fabricate the headers, then set the engine in the test
stand and get serious about running it.

Corky Scott