---------------------------------------------------------- Glasair-List Digest Archive --- Total Messages Posted Wed 12/19/12: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:53 AM - Re: Mogas in a Glasair II (jonlaury) 2. 10:56 AM - Glasair 2S W&B (jonlaury) 3. 06:35 PM - Re: Glasair 2S W&B (Craymondw@aol.com) ________________________________ Message 1 _____________________________________ Time: 10:53:26 AM PST US Subject: Glasair-List: Re: Mogas in a Glasair II From: "jonlaury" Craymondw(at)aol.com wrote: > John, > Did you have C.G. problems with your 2S. ...snip... Hi Chuck, I started a new thread for this. Look for "Glasair 2s W&B" I'll PM you as well. JOhn Read this topic online here: http://forums.matronics.com/viewtopic.php?p=390703#390703 ________________________________ Message 2 _____________________________________ Time: 10:56:16 AM PST US Subject: Glasair-List: Glasair 2S W&B From: "jonlaury" Hi Chuck, That's really funny that you contacted me about this because when I was guesstimating where my CG would fall using the 6cyl 220 Franklin engine, someone gave me your W&B numbers for your fixed Tri-gear. 1275 #'s EW if I recall. To answer your question, my 2STD CG ended up being right on the dot. See the attached. I thought that the airplane would be nose heavy from the 6 cyl engine so I moved it as aft as I could and used a 29# Whirlwind 151 CS prop. Battery on the FW. I have the Super II horizontal and I moved my wing aft. SL 30, transponder, audio panel, Trio Pro, AFS 4500 panel. Full conformal foam (heavy) upholstery, floorboards in baggage (makes it flat). I built it as an FT with all the hardpoints and FW beefing for the nose gear trunnion. And then I got over all the fear-mongering re the TD (always my first choice) and found some Grove aluminum TD gear in Barnstormers for a song and converted. I weighed control surfaces before and after painting with Southern Polyurethane single stage white, topped with clear and the difference was just a few ounces. I can't imagine paint on the whole plane amounting to more than 15#'s or so. Hope this helps. Best, John (805) 686 4331 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=390704#390704 Attachments: http://forums.matronics.com//files/n20td_wandb_work_sheet_370.xls ________________________________ Message 3 _____________________________________ Time: 06:35:42 PM PST US From: Craymondw@aol.com Subject: Re: Glasair-List: Glasair 2S W&B Sounds great. I was the first to complete and warned Stoddard Hamilton of a potential C.G. problem. They had a professional weight the plane and decided to convert to the Super 2S. One poor builder phoned me in 1991 to say that he just completed a RG 2S and had a stall speed of 90MPH!!! Having a full panel with two radios, a 200HP engine and a constant speed prop saved my butt. My CD fell within limits. Later removing the heavy lacquer primer and Centuri paint in 1996 made a big difference. After I removed all the paint I swept it into a bag and weighed it and was surprised to see it weighed around forty five pounds. I even sanded down the gell coat to a thinner thickness. Plus I put the plane on a diet by installing lighter upholstery and hard ware were ever I could. I installed a far lighter battery and starter motor that saved a lot of weight. Doing that dropped the empty weight from 1415 pounds to a little over 1325 and moved the CG forward. I understand when a heavy paint is used it adds weight to the aft. Chuck Raymond In a message dated 12/19/2012 1:56:26 P.M. Eastern Standard Time, jonlaury@impulse.net writes: --> Glasair-List message posted by: "jonlaury" Hi Chuck, That's really funny that you contacted me about this because when I was guesstimating where my CG would fall using the 6cyl 220 Franklin engine, someone gave me your W&B numbers for your fixed Tri-gear. 1275 #'s EW if I recall. To answer your question, my 2STD CG ended up being right on the dot. See the attached. I thought that the airplane would be nose heavy from the 6 cyl engine so I moved it as aft as I could and used a 29# Whirlwind 151 CS prop. Battery on the FW. I have the Super II horizontal and I moved my wing aft. SL 30, transponder, audio panel, Trio Pro, AFS 4500 panel. Full conformal foam (heavy) upholstery, floorboards in baggage (makes it flat). I built it as an FT with all the hardpoints and FW beefing for the nose gear trunnion. And then I got over all the fear-mongering re the TD (always my first choice) and found some Grove aluminum TD gear in Barnstormers for a song and converted. I weighed control surfaces before and after painting with Southern Polyurethane single stage white, topped with clear and the difference was just a few ounces. I can't imagine paint on the whole plane amounting to more than 15#'s or so. Hope this helps. Best, John (805) 686 4331 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=390704#390704 Attachments: http://forums.matronics.com//files/n20td_wandb_work_sheet_370.xls ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message glasair-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Glasair-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/glasair-list Browse Digests http://www.matronics.com/digest/glasair-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.