Hi Wayne
I really wanted to go to Sun 'n Fun and took the week off to do it. But we
had snow here even on Wednesday this week. I thought this was the month of
April not March. The weather is ridiculous. They were forecasting some
nasty stuff moving in from the west & we were not sure that we could make it
back on time. As it turned out I could have. Oh well ... next year.
I just read your comment on trim after I posted mine. You are right, I have
not tried the airplane heavily loaded in the rear. However, in all my
flying, the trim is dead in line with the rest of the elevator. The 11" C
of G seems just about right for the airplane. I must try controlling the
airplane with trim only. I forgot about that point. That would be quite an
experience. For safety reasons, I agree, install the trim. But, you had
better check it regularily on preflight, because 95% of the time on my
REbel, it will stay dead centered.
Regards
Brian #328R
-----Original Message-----
From: Wayne G. O'Shea [mailto:
oifa@irishfield.on.ca]
Sent: Friday, April 14, 2000 11:26 PM
To: Murphy Rebel Builders List
Subject: Re: Elevator trim
Most seem to have this opinion of the elevator trim. However, I'm sure you
will use it if you ever want to fly hands off on a long X-country (with a
different c of g than from your circuit flying). The biggest reason to
install it is to have 2 means of controlling the axis. What would you do,
God forbid, when your elevator cable breaks or a horn breaks off the control
column??? Go along for one LAST ride (saying over and over again I wish I
had installed the trim) or control your destiny with the trim control and
power inputs to land safely!!
Everyone says they don't use it, but when you look at their planes the trim
is never in the neutral position!(usually nose up) Except Howards! I mounted
his horizontal stabilizer at 0.6 degrees instead of 1.0 degree as I found
mine always had nose up trim. Mounting at 0.6 gave the neccesary built in
nose up correction without adding the drag of the trim tab down and elevator
up, to correct for nose heavyness. (note that both our planes do not have
the firewall moved back)
I'm sure Brian will use his trim when all loaded up with tents, sleeping
bags, food, beer, beer, beer, etc. etc. on the Ramble. He just might need a
little nose down trim to keep it level! Hey Brian, weren't you supposed to
do Sun-n-Fun???
As always, just my 2 cents Canadian,
Wayne G. O'Shea
www.irishfield.on.ca
-----Original Message-----
From:
BILNEWKIRK@aol.com <
BILNEWKIRK@aol.com>
To:
murphy-rebel@dcsol.com <
murphy-rebel@dcsol.com>
Date: Friday, April 14, 2000 10:59 PM
Subject: Re: Elevator trim
I HAVE 115 HOURS ON REBEL #376 AND HAVE FOUND THE TRIM TO BE OF LITTLE OR
NO
USE. LAST WEEK I WENT TO TUCSON, ARIZONA AND BACK (700 MILES). THE PLANE
WAS EASIER TO STABILIZE WITH SMALL INPUTS OF THROTTLE THAN WITH ELEVATOR
TRIM
... I WOULD NOT INSTALL IT AGAIN
BILL NEWKIRK, #376
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