Today's Message Index:
----------------------
1. 05:47 AM - Re: RV8a (Wayne R. Couture)
2. 06:26 AM - Re: Aero Sport Power IO-360-B1B Engine tests=X_ACCEPT_LANG version=... (Dwpetrus@aol.com)
3. 07:29 AM - Order of things (Al Grajek)
4. 07:44 AM - Nose gear problems (Vern Darley,II)
5. 07:53 AM - Re: Order of things (Jolly)
6. 08:11 AM - Re: Order of things (Bill Marvel)
7. 08:55 AM - Re: Nose gear problems (Bill Dube)
8. 12:29 PM - Re: Order of things (Greg V. Miller)
Message 1
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--> RV8-List message posted by: "Wayne R. Couture" <commando@cox-internet.com>
Can you tell us where the break occurred? Was it the engine mount or the
leg? Any info would be helpful.
Wayne
RV-8A
Do not archive
----- Original Message -----
From: "Lorin Frank" <llfrank@earthlink.net>
Subject: RV8-List: RV8a
> --> RV8-List message posted by: "Lorin Frank" <llfrank@earthlink.net>
>
>
> Just wanted to let RV8a folks know of a potential problem. We had 90
> hours on our RV8a when the nose gear collapsed on landing. We had maybe
200
> landings on a grass field. The NTSB found that the nose gear was at fault,
> no pilot error or poor field conditions. This is the same nose gear used
> for the RV6a but the RV8a has a lot more weight up front. Van's is aware
of
> this problem but has no fix for it. Maybe an after market parts builder
> will come up with something. Our insurance company is paying $16,000 to
fix
> this plane so we are keeping it off grass or rough fields until a stronger
> nose gear is made available. Fly well.
>
>
> --- Lorin Frank
> --- llfrank@earthlink.net
>
>
Message 2
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| Subject: | Re: Aero Sport Power IO-360-B1B Engine tests=X_ACCEPT_LANG version=... |
--> RV8-List message posted by: Dwpetrus@aol.com
My partner just got one and is installing it on his RV7A project. They have
the engine hung and the prop mounted and will start sometime next month. You
can call his at
318-547-3847 (HOYT)
thanks,
Wayne Petrus
RV8A flying (aerosport O360A1A-Hartzel)
Message 3
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vansairforce@yahoogroups.com
--> RV8-List message posted by: "Al Grajek" <algrajek@msn.com>
Listers.
I just received my RV8A finish kit. It seems at this point, Vans leaves a
lot to the builder. Can anyone suggest a general order of where to start ie;
canopy, plumbing,gear etc. so as to stay out of trouble doing something out
of order and having to take it apart to access something else? I was going
to wait on the wing / fuselage attach until the wings go on for good.
Thanks.
Al Grajek
RV8A
Message 4
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| Subject: | Nose gear problems |
--> RV8-List message posted by: "Vern Darley,II" <vern@mindspring.com>
Just a comment on the nose gear legs: I have seen two 6A nosegears bent severely
without breaking. In both cases,the engine mounts bent also. They are tough!
I also tried to saw one off using a Sawsall. What a job! However, there is an old
Van's Service bulletin on 6A nosegears (SB 98-10-1) that might be applicable.
It is posted in pdf format at http://www.vansaircraft.com/public/notices.htm
Vern Darley
Peachtree City, GA
6A slowbuild
Message 5
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| Subject: | Re: Order of things |
--> RV8-List message posted by: "Jolly" <jollyd@ipns.com>
take a fools advice if you will.you can fit the canopy..(rear), but don't do
the foward part..UNTIL you do ALL the wires, plumbing, air ventig ducts,
ect...and THEN stang back and try to think of anything you have left
out..BEFORE you close the top..believe me, unless you cut a hole in the top
of the fuse, thru the baggage compartment you will find yourself upside down
under the inst. panel a lot more than you really want ...then cleco the top
on, and trial fit the foward part of the canopy to fit....happy building
----- Original Message -----
From: "Al Grajek" <algrajek@msn.com>
<vansairforce@yahoogroups.com>
Subject: RV8-List: Order of things
> --> RV8-List message posted by: "Al Grajek" <algrajek@msn.com>
>
>
> Listers.
> I just received my RV8A finish kit. It seems at this point, Vans leaves a
> lot to the builder. Can anyone suggest a general order of where to start
ie;
> canopy, plumbing,gear etc. so as to stay out of trouble doing something
out
> of order and having to take it apart to access something else? I was
going
> to wait on the wing / fuselage attach until the wings go on for good.
> Thanks.
> Al Grajek
> RV8A
>
>
Message 6
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| Subject: | Re: Order of things |
--> RV8-List message posted by: Bill Marvel <bmarvel@cox.net>
Al:
I had an 8A QB kit and pretty much followed the order of assembly shown in the
text of the plans. FWIW, keep the following thought in the forefront of your
mind:
MECHANICAL THINGS THAT MUST GO IN A CERTAIN PLACE HAVE TO GO IN THAT PLACE.
ANYTHING ELSE, LIKE WIRING AND PLUMBING, CAN BE ROUTED AROUND THEM.
My thoughts:
1. Landing gear weldments go first. Be sure to clean out all of the holes so
wing atch bolts go through. This is much harder to do if you install the
weldments and learn of this problem later.
2. Gear legs and wheels. Axle may take hours of emery cloth work so wheels
will fit on it.
3. Engine mount/firewall planning, drilling and cutting. Be sure you have
mount attached so you know where you can't mount something that would hit the
mount.
4. Floor assembly but not installation. Drill to floor beams and install
nutplates. Control hangars for center control column. Step installation
5. Make up seat backs
6. Cut access hole and make cover plate for bulkhead on rear side of fwd
baggage compartment. Drill, hinge or nutplate as you need.
7. Make up rear baggage compartment, drill and nutplate
8. Instrument panel planning/left and right upper consoles/left and right lower
consoles. Drill, nutplate, tap. Route T,P,M cables as necessary. Drill holes
as needed in bulkheads, firewall etc.
9. In short, do all of the cockpit metal work. Holes, nutplates, etc. Then
disassemble and paint the cockpit while all the pieces are removable.
10. Now, do all of the electrical wiring, hydraulic and fuel lines. All of the
mechanical impediments to these will be in place and you can route over, under,
around or through as needed.
Al, that will take awhile... When you get that far, give us another call.
Bill Marvel
Al Grajek wrote:
> --> RV8-List message posted by: "Al Grajek" <algrajek@msn.com>
>
> Listers.
> I just received my RV8A finish kit. It seems at this point, Vans leaves a
> lot to the builder. Can anyone suggest a general order of where to start ie;
> canopy, plumbing,gear etc. so as to stay out of trouble doing something out
> of order and having to take it apart to access something else? I was going
> to wait on the wing / fuselage attach until the wings go on for good.
> Thanks.
> Al Grajek
> RV8A
>
Message 7
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| Subject: | Re: Nose gear problems |
--> RV8-List message posted by: Bill Dube <bdube@boulder.nist.gov>
A quote from the service bulletin: "Any metal part loaded to normal working
stress will eventually fail due to fatigue."
This is true for some metals (like aluminum and brass) but not true for
all metals. It is definitely not true for steel. If you stay below the
"fatigue limit" stress for the material, it will not fail due to fatigue.
For most steels, the fatigue limit is about 1/3 of the tensile strength.
If the gear leg is cracking after 1,000 landings this would imply that
the
peak loading was about 1/2 of the tensile strength. This would also imply
that you could beef up the thickness (or size) of the highly stressed
portion of the gear leg by perhaps as little as 20% to get on the "good"
side of the fatigue limit curve. You could also alter the design in some
way to reduce the peak load or to reduce the stress concentration at the
point where cracking is a problem.
Message 8
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| Subject: | Re: Order of things |
--> RV8-List message posted by: "Greg V. Miller" <gvm@cableone.net>
I just followed the instructions as it was not a QB, simply verfying
each task has been done and checking it off. I did find a few rivets
missing that way.
On Fri, 2003-02-21 at 08:28, Al Grajek wrote:
> --> RV8-List message posted by: "Al Grajek" <algrajek@msn.com>
>
>
> Listers.
> I just received my RV8A finish kit. It seems at this point, Vans leaves a
> lot to the builder. Can anyone suggest a general order of where to start ie;
> canopy, plumbing,gear etc. so as to stay out of trouble doing something out
> of order and having to take it apart to access something else? I was going
> to wait on the wing / fuselage attach until the wings go on for good.
> Thanks.
> Al Grajek
> RV8A
>
>
--
Greg V. Miller <gvm@cableone.net>
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