Today's Message Index:
----------------------
1. 05:20 AM - Flop tube problems (Merems)
2. 06:38 AM - Re: Flop tube problems (Hinde, Frank George (Corvallis))
3. 11:48 AM - Space in RV 7 wing roots (Hinde, Frank George (Corvallis))
Message 1
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<RV7and7A@yahoogroups.com>, <rv7-list@matronics.com>,
<RV-9A@yahoogroups.com>, <rv9-list@matronics.com>
| Subject: | Flop tube problems |
--> RV7-List message posted by: "Merems" <merems@cox.net>
For those interested I designed a simple anti-rotation bracket for my flop tube
installation. It is easy to make and install while constructing the tank. I
believe it can be easily retrofitted to an existing tank with minimal effort,
but you will have to remove the flop tube from the 90 bulkhead elbow.
Photos are posted on my website ExperimenalAero.com http://www.experimentalaero.com/flop_tube_anti_rotation.htm
Paul
----- Original Message -----
From: rwtrwtau
To: RV7and7A@yahoogroups.com
Sent: Thursday, January 13, 2005 12:56 AM
Subject: [RV7Yahoo] Re: Flop tube problems
For those that are interested, I was told by Vans that flop tubes
should be fitted with anti-rotation brackets as well. This makes
sense to me but is not depicted on the drawings or described in the
instructions. It will be fun installing them now...
Another kind person pointed me to the Standard Aircraft Handbook,
where the torque figures are in fact listed.
Richard
--- In RV7and7A@yahoogroups.com, "rwtrwtau" <rwtalbot@p...> wrote:
>
>
> Hi Everyone,
>
> I'm wondering if people have been having issues getting the flop
> tubes installed in their tanks? My issues seems to be stopping
the
> fitting from turning when I connect the AN-929-6D end cap.
>
> First I tried sealing the fitting by smearing the fitting, nut and
> hole with Proseal. I quickly discovered that that was a bad idea
as
> the Proseal turns into rubbery like stuff when it sets not
adhesive.
>
> I have since tried with the fittings dry and Proseal removed.
This
> has not helped either.
>
> Looking at the plans (16A) I have installed the T-410 plate inside
> the rib and the T-405 reinforcing angle. The T-410 plate is not
> specifically called out but I assume it should be there even in
flop
> tube installations.
>
> I do not see a call-out for a bulkhead washer on the plans.
Indeed
> if I install on, there will not be any thread for the nut to clamp
> down on, let alone 1 turn extra.
>
> I was thinking of making some anti-rotation brackets to fit in the
> tank but that will be a pain. I have also made some very thin
> washers from .016" Alclad and this seems to help.
>
> Does anyone know what the torque requirements for these fittings
> is? I have been working on the basis of finger tight + 1/2 turn.
>
> Thanks
> Richard
Van's Air Force - World Wide Wing
www.vansaircraft.net
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Message 2
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| Subject: | Flop tube problems |
--> RV7-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
Cool...I'm just about to tear into my QB tanks and move the sender to
the back wall etc...I will fit the bracket as shown.
Nice one.
Frank
Do not archive
-----Original Message-----
From: owner-rv7-list-server@matronics.com
[mailto:owner-rv7-list-server@matronics.com] On Behalf Of Merems
rv7-list@matronics.com; RV-9A@yahoogroups.com; rv9-list@matronics.com
Subject: RV7-List: Flop tube problems
--> RV7-List message posted by: "Merems" <merems@cox.net>
For those interested I designed a simple anti-rotation bracket for my
flop tube installation. It is easy to make and install while
constructing the tank. I believe it can be easily retrofitted to an
existing tank with minimal effort, but you will have to remove the flop
tube from the 90 bulkhead elbow.
Photos are posted on my website ExperimenalAero.com
http://www.experimentalaero.com/flop_tube_anti_rotation.htm
Paul
Message 3
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| Subject: | Space in RV 7 wing roots |
--> RV7-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
Hi guys,
I'm planning on doing something a little different with the fuel system
on the 7A to improve the margin against vapour lock for use with
Autofuel, which boils a whole lot easier than 100LL does if the pump
sucks on the fuel.
The first part of the mods require installing an electric fuel pump (and
hopefully pressure regulator) in each wing root, i.e as close to the
fuel tank as possible..
Does anyone know the approximate width of the space between the tank and
the fuse side, has anyone seen a pump installed in that location?
Thanks
Frank
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