Today's Message Index:
----------------------
1. 06:58 AM - Re: Rear position light (Matthew Brandes)
2. 02:58 PM - F 711 Bulkhead / Fuselage twist (Grant Neilson)
3. 08:40 PM - Re: F 711 Bulkhead / Fuselage twist (Gerry Filby)
Message 1
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| Subject: | RE: Rear position light |
--> RV9-List message posted by: "Matthew Brandes" <matthew@n523rv.com>
D,
I can't answer your specific question of whether it meets the requirements
but not only do you need a position light, you need a strobe to be visible
from the rear as well. That is why most spend the $130 for the A500
Tail/Position light combo that Van's sells. Are you putting strobes on the
outside of the wingtips so they would be visible from the rear? I have the
newer tips with the cutouts for the lights on the wing tips.
Matthew Brandes,
Van's RV-9A (Engine/FWF)
#90569
<http://www.n523rv.com/> http://www.n523rv.com
EAA Chapter 1329 President
EAA Chapter 868 Web Editor
Message 2
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| Subject: | F 711 Bulkhead / Fuselage twist |
--> RV9-List message posted by: "Grant Neilson" <grantneilson@telus.net>
NatureI noticed right away when fitting the two halves of the F711 bulkhead
together that there was a slight asymmetry to it, but thought that when all
the flanges were bent to the proper angle to fit the skin that all would be
well in the end. Alas. the double row of pre drilled holes are too far apart
to match up with the holes in the skin (one side only), and the bulkhead is
causing a slight twist to the aft fuselage.
I was just wondering if anyone else has had problems with this bulkhead
and, if so, what fixes people have come up with. Unfortunately, I've already
match drilled the J channel stringers to the skins, but I haven't yet
drilled the bulkheads to the skins. Will the later placement of the
longerons and upper fuselage help to get rid of this minor twist, or should
I order new parts and rebuild this bulkhead? Any suggestions would be much
appreciated.
grantneilson@telus.net
Message 3
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| Subject: | Re: F 711 Bulkhead / Fuselage twist |
--> RV9-List message posted by: Gerry Filby <gerf@gerf.com>
I had a b*** of a time with this bulkhead too. You'll probably
have similar issues with the bottom tailcone skin also. The
alum is thick and its not well formed. You just have to keep
working it till you get an acceptable fit.
You'll end up with some elongated rivet holes etc. I actually
moved up to the next diameter hole rivets in some places
because of the hole elongation. Tech Support at Van's told me
to not worry too much and use longer rivets that will expand
into the elongated hole.
As to twist ...
At this stage you want to get as close as possible but don't
worry if its not absolutely 0.0 degrees. The critical moment
for fuselage twist is when you drill and rivet on the aft deck
- at that point you need to be very, very anal. Prior to fixing
in the aft deck you have an opportunity to manually straighten
out any twist and lock it in place with clamps.
For peace of mind, give Vans a call and discuss with them ...
g
>
> --> RV9-List message posted by: "Grant Neilson" <grantneilson@telus.net>
>
> NatureI noticed right away when fitting the two halves of the
> F711 bulkhead
> together that there was a slight asymmetry to it, but thought
> that when all
> the flanges were bent to the proper angle to fit the skin that
> all would be
> well in the end. Alas. the double row of pre drilled holes are
> too far apart
> to match up with the holes in the skin (one side only), and the
> bulkhead is
> causing a slight twist to the aft fuselage.
> I was just wondering if anyone else has had problems with
> this bulkhead
> and, if so, what fixes people have come up with. Unfortunately,
> I've already
> match drilled the J channel stringers to the skins, but I haven't yet
> drilled the bulkheads to the skins. Will the later placement of the
> longerons and upper fuselage help to get rid of this minor
> twist, or should
> I order new parts and rebuild this bulkhead? Any suggestions
> would be much
> appreciated.
>
> grantneilson@telus.net
>
>
>
>
>
>
>
--
__g__
==========================================================
Gerry Filby gerf@gerf.com
Tel: 415 203 9177
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