---------------------------------------------------------- RV9-List Digest Archive --- Total Messages Posted Mon 10/31/05: 3 ---------------------------------------------------------- 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 _____________________________________ Time: 06:58:32 AM PST US From: "Matthew Brandes" Subject: RV9-List: RE: Rear position light --> RV9-List message posted by: "Matthew Brandes" 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 EAA Chapter 1329 President EAA Chapter 868 Web Editor ________________________________ Message 2 _____________________________________ Time: 02:58:52 PM PST US From: "Grant Neilson" Subject: RV9-List: F 711 Bulkhead / Fuselage twist --> RV9-List message posted by: "Grant Neilson" 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 _____________________________________ Time: 08:40:50 PM PST US Subject: Re: RV9-List: F 711 Bulkhead / Fuselage twist From: Gerry Filby --> RV9-List message posted by: Gerry Filby 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" > > 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