winter's scimitar  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> Radios, Batteries, Clubhouse and more >> Unusual R/C >> winter's scimitar
Page: [1]

Login
Message << Older Topic   Newer Topic >>
winter's scimitar - 9/28/2004 3:22:31 AM   
donkey doctor



Posts: 1197
Joined: 12/1/2002
From: Lake Cowichan, BC, CANADA
Status: offline 		Hello; I recently bought a scimitar type plane. I put a 40 size Irvine diesel in it, because the seller said it had a very heavy 40 two stroke in it.

I'm concerned about the c of g, I'm tempted to just try it as it is. Where should the balance point be?
       Post #: 1

RE: winter's scimitar - 10/4/2004 4:28:00 PM   
donkey doctor



Posts: 1197
Joined: 12/1/2002
From: Lake Cowichan, BC, CANADA
Status: offline 		Hello; After 3 weeks no replys? Am I the only one on RCU that has one of these? I guess I'll ahve to get out my old collection of magazines and see if I can find a build article on one of these. I think RCM did one 3 or 4 years back. I'd rather not do it by trial and error.

(in reply to donkey doctor)
       Post #: 2

RE: winter's scimitar - 10/4/2004 8:12:27 PM   
fredscz


 

Posts: 529
Joined: 1/7/2002
From: Southern, IL, USA
Status: offline 		If you do a search on yahoo for Bill Evans Simitar you will find a whole sight devoted to these planes. The c/g-balance point is near the front of the wing , in the neighborhood of the 10% mark. E-mail me if I can be of further help.
FB

(in reply to donkey doctor)
       Post #: 3

RE: winter's scimitar - 10/4/2004 8:40:07 PM   
TimC



Posts: 2257
Joined: 1/7/2003
From: Lone Pine, CA, USA
Status: offline 		donkey doc, I have a Simitar with a .50 Webra in it. It is a blast to fly. I cranked up the rates where it will turn on a dime. I was worried about the wings popping off, but no problems so far. I think I'll visit the website and see if anyone has converted a Simitar into a taildragger.

(in reply to donkey doctor)
       Post #: 4

RE: winter's scimitar - 10/22/2004 6:12:07 PM   
donkey doctor



Posts: 1197
Joined: 12/1/2002
From: Lake Cowichan, BC, CANADA
Status: offline 		Hello Tim; My scimitar is a tail dragger with the gear mounted just in front of the wing. I checked out the Evans site but I still haven't found the c of g.

(in reply to TimC)
       Post #: 5

RE: winter's scimitar - 10/22/2004 6:26:37 PM   
TimC



Posts: 2257
Joined: 1/7/2003
From: Lone Pine, CA, USA
Status: offline 		donkey doctor, I tried to find the Bill Evans site after a Yahoo seach and had no luck. My plane was given to me a few years back, and the plans are long gone, or I would check the c.g. I can measure what I have now, if that will help. I'm not even real sure that it's a Simitar. Bill Evans designed so many different planes that look alike, I get confused. I would like to visit the site to see if I can idenitify mine for sure. Are the axles on yours just ahead of the wing, or the rear of the wheel?

< Message edited by TimC -- 10/23/2004 3:52:49 PM >

(in reply to donkey doctor)
       Post #: 6

RE: winter's scimitar - 10/22/2004 8:04:47 PM   
fredscz


 

Posts: 529
Joined: 1/7/2002
From: Southern, IL, USA
Status: offline 		Today is Oct 22 and I just did a yahoo search using only the word simitar and the 4th down is "Yahoo groups: simitar". This has been a very good sight to learn about the Simitars. I have an old mag that has a Simitar build article that I might be able to dig out if you don't find what you need from the sight.
FB

(in reply to TimC)
       Post #: 7

RE: winter's scimitar - 10/22/2004 8:32:09 PM   
TimC



Posts: 2257
Joined: 1/7/2003
From: Lone Pine, CA, USA
Status: offline 		Thanks fredscz. I found the site. I had to join Yahoo Groups and the website. I found out there that my plane is a Simitar.

(in reply to fredscz)
       Post #: 8

RE: winter's scimitar - 10/23/2004 3:26:06 PM   
pipercub6



Posts: 66
Joined: 5/31/2002
From: Dushore, PA, USA
Status: offline 		HI,

if you check either the RCM plans catalog or the Model Airplane news plans catalog I believe you can find plans for your plane. I'm currently building a simitar type plane by Bill called the Desperado 3000. with an 84 in winspan. Power will be either a Zenoah
g23 or a ST 2000(The plans show a 3000,(thus the Name.) I will look through my stuff (old Mags) and see If I can come up with the article. That should give you a reasonably close idea for the CG location. Will get back to you later after I take a look.

Pipercub 6

(in reply to TimC)
       Post #: 9

RE: winter's scimitar - 11/4/2004 5:33:51 PM   
donkey doctor



Posts: 1197
Joined: 12/1/2002
From: Lake Cowichan, BC, CANADA
Status: offline 		Hello; Still no reply on the cof g question. I have found out that it was Bill Evans who designed the scimitar not Bill Winters. There is a new fellow at our field with a gremlin which is similar to the scimitar but just enough different to not be helpful.

(in reply to donkey doctor)
       Post #: 10

RE: winter's scimitar - 12/10/2004 9:00:36 PM   
fokker38cc


 

Posts: 129
Joined: 6/24/2003
From: Argentina south, Chubut
Status: offline 		Hi
What a cool site , Canada.
I have a Slow Motion , a Bill Evans design for Model Aviation, I built it with wings of white foam, the lightest and put four spars of light wood and covered with brown paper and white glue thinned at 50% water to "paint" the foam and glue thinned with 70 % water ( yes 70% water) to "paint" the paper ,because is a heavy PVA glue for wood and have a Tower 40 in front and came at 1.800 kg, lighter than the original in Model Aviation.
After it I painted with interior latex paint.
I have flown it more than 3 1/2 gallons of fuel and still work well, surviving a very bad crash caused by recycled batteries, after it I put a NEW set of batteries at receiver.
Ya know, you dont still have the CG.
I promise you, I will go to my house and measure the wing and the CG position.
Also I have the WEEDWHACKER, similar design of my Slow Motion, from a plan of Flying Models I believe, enlarged it to 2 meters wingspan and the same brown paper , etc but with a Weedeater 25 cc in front.
This is in building process, hinging in this moment the flaperons.Engine converted and home made props.
I have photos of my plane if you send me your mail, I can send, I am trying with your mail(find it) in the RC universe but my knowledge is poor.
I have finished in Model Aviation magazine colors.
I am living in South America, too windy for this reason the plane flying hour is low.
Nice to manage the wind.
Happy landings
Jose

_____________________________

The experience is a comb the life gives you when you are bald. "Ringo" Bonavena.

(in reply to donkey doctor)
       Post #: 11

RE: winter's scimitar - 12/11/2004 3:18:23 PM   
fokker38cc


 

Posts: 129
Joined: 6/24/2003
From: Argentina south, Chubut
Status: offline 		Hi
my flying Scimitar version (Slow Motion), Wingspan 60 1/4", plan#860 , Sept 1998 Model Aviation , Root Chord (w/o ailerons) 11 1/2"
CG measured from leading edge in plans 1 5/16"
With this set up the plane make very nice spin.
In the building article in the magazine Bill say :

"Check to make sure your aircraft balances ( level to slightly nose down) at the center of gravity (CG) location indicated in the plans (aproximately 1 1/2 inches behind the leading edge of the wing, with no fuel in the tank"

I have the plans of Flying Models magazine of Sept 2002 plans #CD 177 , "weed wacker", root chord w/o ailerons 11 1/2" and the CG measured in plans 1 1/4" from leading edge.
In the construction article in the magazine Bill says the same above.

I have experimented and the CG is not very critical, I have flying the plane with nose heavy set up and no problems ( I am a sunday flyier), after it I put 1 ounce lead in the tail and the plane is more happy at control input but still is a no stress flying plane

I believe it will help you.
I not write before because I have seen your post 3 days ago.
Happy landings
Jose

_____________________________

The experience is a comb the life gives you when you are bald. "Ringo" Bonavena.

(in reply to fokker38cc)
       Post #: 12

RE: winter's scimitar - 12/26/2004 5:38:21 PM   
repinfl


 

Posts: 33
Joined: 3/1/2002
From: Ocala, FL, USA
Status: offline 		Check out www.modelaircraft.org/museum/bio/Evans.pdf It gives all Bill Evans designs and when and what mag published in!

(in reply to fokker38cc)
       Post #: 13

RE: winter's scimitar - 1/12/2005 8:56:12 PM   
pogo3033


 

Posts: 6
Joined: 5/28/2004
From: Ocala, FL, USA
Status: offline 		[image][/image]



C:\WINDOWS\Desktop\Pictures\Airplane pictures\Construction Pictures\Zipity, do da.jpg

As you can guess I couldn't figure out how to get a picture uploaded but see below as I finally did!

< Message edited by pogo3033 -- 1/12/2005 9:09:50 PM >

(in reply to repinfl)
       Post #: 14

RE: winter's scimitar - 1/12/2005 8:58:30 PM   
pogo3033


 

Posts: 6
Joined: 5/28/2004
From: Ocala, FL, USA
Status: offline 		[image][/image]

Attachments
Click to see fullsize image.
Click for fullsize

(in reply to repinfl)
       Post #: 15

RE: winter's scimitar - 1/31/2005 9:50:42 PM   
mwright


 

Posts: 184
Joined: 12/29/2001
From: King, NC, USA
Status: offline 		pogo3033 - Are you building the Do-Da????

(in reply to pogo3033)
       Post #: 16