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Guest · 03-01-2011, 11:03 AM

I am building this glider, and need to know how much taper there is in the outside wing section. I imagine there is a mathematical formula to figure it out. I know what the length of the ribs are, its the height that has me stumped.

The root rib, I have. Just no idea of what the W-8 (outside) rib height is.

While I'm at askin' questions, how much washout should there be on a 100" polyhydral wing?

Thanks in advance.

Opps! Forgot to add the leading edge tapers slightly, the trailing edge tapers big time.

cassat · 03-01-2011, 07:26 PM

Hi Brent,

How is Q'uapelle? Kinda frozen?
I am building a similar wing here now, but still cutting ribs out.
I can let you know in a couple days or mail you some patterns

Dave

Guest · 03-01-2011, 07:41 PM

Sorry, double post! Somehow!

Guest · 03-01-2011, 07:43 PM

Thanks Dave, I'm gettin' there. I screwed up and only cut one side!

I guess I thought I needed the practice figuring it out.

One of my mentors has a name for this kind of build, TLAR!

BTW I am no where near Q'uapelle, I live on the third hill East of Alberta!

Perpetualrepair · 03-02-2011, 10:10 AM

On my Riser 100, measured at the wing end rib W8, including covering, it is 22mm at the highest point, and the rib is 190mm long.
I can measure it off the original plan if that helps?

Guest · 03-02-2011, 11:01 AM

Thanks Perpetualrepair, thats the digit I needed! I sure hope your user name isn't related to your building skills!

I guess unless someone is independantly wealthy, repairing is the mainstay of this hobby. Last I heard, gravity always wins!

Did you build in any wing washout? If so how much?

Guest · 03-02-2011, 04:34 PM

Well, it's coming together. Need to put in the dihedral braces and the shear webbing (the plan I have only shows 7 used, but there are 30 in the package) finish sanding, and cover.

Dale Hunter · 03-02-2011, 07:48 PM

Are you sure that wasn't a Biplane kit?

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Guest · 03-02-2011, 08:06 PM

What the heck, 2 double posts in 2 days! RRRRR!

Guest · 03-02-2011, 08:12 PM

Ummm No! Not exactly!

But the drawings made it look like all the pieces hooked together to form 1 straight (kinda) line!

Hey, I'm a beginner, hence the need for 55+ inch wing span! You know, you've seen me suffer, (opps) I mean fly.

That gives me an idea! A platypus plane!

03-01-2011, 11:03 AM	#1
Guest Guest Join Date: Sep 2002 Feedback: 0 / 0% Posts: 0 Total Props: 57	Sig Riser 100 Wing Remove this ad - become a site supporter! I am building this glider, and need to know how much taper there is in the outside wing section. I imagine there is a mathematical formula to figure it out. I know what the length of the ribs are, its the height that has me stumped. The root rib, I have. Just no idea of what the W-8 (outside) rib height is. While I'm at askin' questions, how much washout should there be on a 100" polyhydral wing? Thanks in advance. Opps! Forgot to add the leading edge tapers slightly, the trailing edge tapers big time. Last edited by Guest; 03-01-2011 at 03:03 PM.
	.

03-01-2011, 07:26 PM	#2
cassat RCC Supreme Contributor I am: Dave Join Date: Jul 2004 Location: P.River,Alberta Radio of choice: Airtronics Aquila,Taranis,DX7 # of RCs: 12 Feedback: 211 / 98% Posts: 7,363 Total Props: 11	Re: Sig Riser 100 Wing Hi Brent, How is Q'uapelle? Kinda frozen? I am building a similar wing here now, but still cutting ribs out. I can let you know in a couple days or mail you some patterns Dave
	.

03-01-2011, 07:41 PM	#3
Guest Guest Join Date: Sep 2002 Feedback: 0 / 0% Posts: 0 Total Props: 57	Re: Sig Riser 100 Wing Sorry, double post! Somehow! Last edited by Guest; 03-01-2011 at 08:17 PM. Reason: Double post
	.

03-01-2011, 07:43 PM	#4
Guest Guest Join Date: Sep 2002 Feedback: 0 / 0% Posts: 0 Total Props: 57	Re: Sig Riser 100 Wing Thanks Dave, I'm gettin' there. I screwed up and only cut one side! I guess I thought I needed the practice figuring it out. One of my mentors has a name for this kind of build, TLAR! BTW I am no where near Q'uapelle, I live on the third hill East of Alberta!
	.

03-02-2011, 10:10 AM	#5
Perpetualrepair RCC Contributor I am: Jay C Join Date: Mar 2005 Location: Vancouver Island, Radio of choice: DX18,DX7, JR XP6102 # of RCs: 14 Feedback: 1 / 100% Posts: 316 Total Props: 0	Re: Sig Riser 100 Wing On my Riser 100, measured at the wing end rib W8, including covering, it is 22mm at the highest point, and the rib is 190mm long. I can measure it off the original plan if that helps? __________________ The only "stupid question" is the one you don't ask. Last edited by Perpetualrepair; 03-02-2011 at 10:17 AM.
	.

03-02-2011, 11:01 AM	#6
Guest Guest Join Date: Sep 2002 Feedback: 0 / 0% Posts: 0 Total Props: 57	Re: Sig Riser 100 Wing Thanks Perpetualrepair, thats the digit I needed! I sure hope your user name isn't related to your building skills! I guess unless someone is independantly wealthy, repairing is the mainstay of this hobby. Last I heard, gravity always wins! Did you build in any wing washout? If so how much?
	.

03-02-2011, 04:34 PM	#7
Guest Guest Join Date: Sep 2002 Feedback: 0 / 0% Posts: 0 Total Props: 57	Re: Sig Riser 100 Wing Well, it's coming together. Need to put in the dihedral braces and the shear webbing (the plan I have only shows 7 used, but there are 30 in the package) finish sanding, and cover. Attached Thumbnails
	.

03-02-2011, 07:48 PM	#8
Dale Hunter RCC Supreme Contributor I am: Dale Hunter Join Date: Jan 2009 Location: Camrose, Alberta Radio of choice: a 12 X in each hand ! Feedback: 23 / 100% Posts: 8,579 Total Props: 39	Re: Sig Riser 100 Wing Are you sure that wasn't a Biplane kit? 100% free webcam site! \| Awesome chicks and it is absolutely free! \| Watch free live sex cam - easy as 1-2-3 __________________ FishFly - FunFly, Sept 11-13. Great fun! Trout Farm Flyers. Life is good.
	.

03-02-2011, 08:06 PM	#9
Guest Guest Join Date: Sep 2002 Feedback: 0 / 0% Posts: 0 Total Props: 57	Re: Sig Riser 100 Wing What the heck, 2 double posts in 2 days! RRRRR! Last edited by Guest; 03-02-2011 at 08:15 PM.
	.

03-02-2011, 08:12 PM	#10
Guest Guest Join Date: Sep 2002 Feedback: 0 / 0% Posts: 0 Total Props: 57	Re: Sig Riser 100 Wing Ummm No! Not exactly! But the drawings made it look like all the pieces hooked together to form 1 straight (kinda) line! Hey, I'm a beginner, hence the need for 55+ inch wing span! You know, you've seen me suffer, (opps) I mean fly. That gives me an idea! A platypus plane!
	.

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