Today's Message Index:
----------------------
1. 07:12 AM - Re: Moose: Elevator Tip Skin cracks (Bill Smith)
2. 07:24 AM - Re: Moose: Elevator Tip Skin cracks (Ted Waltman)
3. 07:58 AM - Re: Moose: Elevator Tip Skin cracks (Dale Fultz)
Message 1
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| Subject: | Re: Moose: Elevator Tip Skin cracks |
--> MurphyMoose-List message posted by: "Bill Smith" <smithbill2@gmail.com>
Did you ask Darryl about a fix? Seems just a thicker skin over the
top and bottom would be enough with maybe the end tie together too.
Thanks for posting this information, most guys would not for fear of
others thinking it was hard landings that caused it, particularly if
no one else reports it. Any chance the builder put "extra" weight in
there trying to completely balance the elevator or does it hang
trailing edge down like most of them do?
Bill
On 5/7/06, Ted Waltman <tedwaltman@i1ci.com> wrote:
>
>
> Guess I'm just lucky to find these things. Hopefully by documenting the
> issues I find such will help others still in the build process or prompt
> others that are now flying to double check their planes.
>
> Last year I discovered small cracks in the underside of both elevator tip
> skins (part # EL-313). I drilled relief holes and kept an eye on them. On
> the left side, I had to drill a second set of holes later in the year.
>
> Looking at the extent of the cracks, particularly on the left (pilot) side
> it is evident that a major "redo" of this area is now in order. As such,
> I've asked a few friends what techniques they might suggest....
>
> [ Please see the rest of my comments and pictures here:
> http://www.i1ci.com/Flying/Moose/Elevator/Elevator.html ]
>
> Thank you for your input.
>
> Ted Waltman
>
> Moose N142SR
Message 2
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| Subject: | Moose: Elevator Tip Skin cracks |
--> MurphyMoose-List message posted by: "Ted Waltman" <tedwaltman@i1ci.com>
Darryl replied suggesting a patch plate on top of the cracks extending fore
and aft to pick up sufficient rivets.
I think I'll reskin it with .032 and put a full-length .062 reinforcing
plate along the side (in other words the entire length of the elevator).
No, there is no extra weight in there. The elevator rests trailing-edge
down as one would expect.
The cracks are probably the result of landing force accumulating over lots
and lots of landings over time. Once in a while I do goof up a landing
<grin>, but nothing of sufficient force to cause the cracks due to just one
or two bad landings.
Thank you for your comments Bill.
Ted
-----Original Message-----
From: owner-murphymoose-list-server@matronics.com
[mailto:owner-murphymoose-list-server@matronics.com] On Behalf Of Bill Smith
Sent: Tuesday, May 09, 2006 8:12 AM
Subject: Re: MurphyMoose-List: Moose: Elevator Tip Skin cracks
--> MurphyMoose-List message posted by: "Bill Smith"
--> <smithbill2@gmail.com>
Did you ask Darryl about a fix? Seems just a thicker skin over the top and
bottom would be enough with maybe the end tie together too.
Thanks for posting this information, most guys would not for fear of others
thinking it was hard landings that caused it, particularly if no one else
reports it. Any chance the builder put "extra" weight in there trying to
completely balance the elevator or does it hang trailing edge down like most
of them do?
Bill
On 5/7/06, Ted Waltman <tedwaltman@i1ci.com> wrote:
>
>
> Guess I'm just lucky to find these things. Hopefully by documenting
> the issues I find such will help others still in the build process or
> prompt others that are now flying to double check their planes.
>
> Last year I discovered small cracks in the underside of both elevator
> tip skins (part # EL-313). I drilled relief holes and kept an eye on
> them. On the left side, I had to drill a second set of holes later in the
year.
>
> Looking at the extent of the cracks, particularly on the left (pilot)
> side it is evident that a major "redo" of this area is now in order.
> As such, I've asked a few friends what techniques they might suggest....
>
> [ Please see the rest of my comments and pictures here:
> http://www.i1ci.com/Flying/Moose/Elevator/Elevator.html ]
>
> Thank you for your input.
>
> Ted Waltman
>
> Moose N142SR
Message 3
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| Subject: | Re: Moose: Elevator Tip Skin cracks |
--> MurphyMoose-List message posted by: "Dale Fultz" <dfultz7@earthlink.net>
I am by no means an expert, but I would say it is a result of energy
absorbed from landings when the old style tail spring had no give in
it...... I am not critizing your landings Ted, even taxing on rough terrain
could cause this over time if nothing else to absorb unwanted energy as the
tail spring is to do.... Dale SR-033
----- Original Message -----
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