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
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Mogas in a Glasair II |
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
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
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
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: 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" <jonlaury@impulse.net>
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
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|