Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Ever heard of the POLESTAR ?

Reply

Old 12-05-2004, 05:45 AM
  #1  
Strykaas
Senior Member
Thread Starter
 
Join Date: Mar 2003
Location: New York, NY
Posts: 4,571
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Ever heard of the POLESTAR ?

What is it ? A plan ? A kit ? Any info appreciated.

It looks nice [:-] !!!
Attached Thumbnails Click image for larger version

Name:	Lj23993.jpg
Views:	73
Size:	107.5 KB
ID:	199527  
Strykaas is offline  
Reply With Quote
Old 12-05-2004, 06:13 AM
  #2  
Strykaas
Senior Member
Thread Starter
 
Join Date: Mar 2003
Location: New York, NY
Posts: 4,571
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

I have found a Pole Star plan on RCM wesite, but it is not exactly the same... The one I've posted may be a modified one ?

http://www.rcmmagazine.com/e/env/000...=plans:PL-1088
Attached Thumbnails Click image for larger version

Name:	Tr50905.jpg
Views:	66
Size:	23.7 KB
ID:	199532  
Strykaas is offline  
Reply With Quote
Old 12-05-2004, 06:41 AM
  #3  
Strykaas
Senior Member
Thread Starter
 
Join Date: Mar 2003
Location: New York, NY
Posts: 4,571
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

I've searched a little bit more and this aircraft may be the "Polestar X EPO, 50 in. span, 60 power, sever wing taper, expert pilots only" designed by Bill Evans.

http://www.google.fr/search?q=cache:...ar+X+epo&hl=fr

Any information on plans availability ?
Strykaas is offline  
Reply With Quote
Old 12-07-2004, 02:32 PM
  #4  
KrisG
Senior Member
 
Join Date: Nov 2002
Location: Izegem, BELGIUM
Posts: 195
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Hi Strykaas,

I once saw a picture of this Polestar EPO in the American RCM magazine ( not the French one). I just did not remember that it was a variety of the Polestar. If you ever run into plans, I'd also be very interested! I once wrote an E-mail to Bill Evans to ask about plans availability, but never got a response, unfortunately.

I once built and flew a Wiseguy, also a Bill Evans design, and it was a great airplane. Just not fast ( 60" straight wing for a piped OS 46 SF).

The EPO looks fast, and probably is VERY fast! It's got a big F-104 Starfighter appeal.

Best regards,

Kris
KrisG is offline  
Reply With Quote
Old 12-07-2004, 06:20 PM
  #5  
Strykaas
Senior Member
Thread Starter
 
Join Date: Mar 2003
Location: New York, NY
Posts: 4,571
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Kris,

I got the information for this airplane through another RCU member.

The EPO is merely a Polestar with the same wing profile at the wing tip / root, but the wing is shortened quite a bit.

So, It is possible to start from the original Polestar (plan available @ RCM), and to make a shorter wing.

However, this version of the Polestar is known as a "nerve racking" bird... So, is it worth it ? Maybe we could shorten the wing, but not that much...
Strykaas is offline  
Reply With Quote
Old 12-09-2004, 01:48 PM
  #6  
KrisG
Senior Member
 
Join Date: Nov 2002
Location: Izegem, BELGIUM
Posts: 195
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Hi Strykaas,

Sometimes a nerve-wrecking bird can be a real experience. I just mean : it is a challenge, and some people like challenges. That is why I said the EPO looks like an F-104 ... that was not the easiest flying airplane ever either, but it has got something special about it.

Hmmm ... standard PoleStar fuselage, shortened wing ... maybe we can brew something ourselves indeed.

Thanks for the reaction!

Kris
KrisG is offline  
Reply With Quote
Old 12-09-2004, 01:53 PM
  #7  
KrisG
Senior Member
 
Join Date: Nov 2002
Location: Izegem, BELGIUM
Posts: 195
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Hi Strykaas,

Sorry to bother again.

The root profile might be the same, but the chord is certainly a lot more than on the original PoleStar. Any data? We could just measure as well, should be close enough. Just a pity that a glass fuselage cannot be used for both PoleStar varieties - the wing fairings would not be the same for both.

Best regards,

Kris
KrisG is offline  
Reply With Quote
Old 12-09-2004, 07:04 PM
  #8  
Strykaas
Senior Member
Thread Starter
 
Join Date: Mar 2003
Location: New York, NY
Posts: 4,571
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Yes, you're right, chord is way bigger than original Polestar's.
I think we have to experiment with wing profiles !
Strykaas is offline  
Reply With Quote
Old 04-08-2007, 07:17 PM
  #9  
Ed_Moorman
My Feedback: (1)
 
Ed_Moorman's Avatar
 
Join Date: Jan 2002
Location: Shalimar, FL
Posts: 4,059
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Anyone know what the Pole Star airfoil is? To get a wing cut, you need a listing of the airfoil. I know it is a reflex airfoil, but need a name or a listing of the data points.
Ed_Moorman is offline  
Reply With Quote
Old 04-09-2007, 11:27 AM
  #10  
Clean
 
Clean's Avatar
 
Join Date: Apr 2002
Location: Parkville, MO
Posts: 1,425
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Looks like a SPAD project to me. I've been building a 46 version of my Flipper and am just waiting to go fly it. It's a flying wing with a fuse airplane too.
Fact is, I need to put a post up for it.
Clean is offline  
Reply With Quote
Old 04-09-2007, 11:52 AM
  #11  
MJD
My Feedback: (1)
 
MJD's Avatar
 
Join Date: May 2003
Location: Orangeville, ON, CANADA
Posts: 8,629
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

ORIGINAL: Ed_Moorman

Anyone know what the Pole Star airfoil is? To get a wing cut, you need a listing of the airfoil. I know it is a reflex airfoil, but need a name or a listing of the data points.
Evan's Simitar1 and Simitar2 airfoils are on file in Compufoil. I can plot them or generate a .dxf if wanted. Tell me the root and tip chord and other details such as sheeting thickness, if you want to go foam, and I can generate the cutting and LE templates if you'd like.

MJD
MJD is offline  
Reply With Quote
Old 04-10-2007, 01:08 PM
  #12  
rv7driver
My Feedback: (103)
 
rv7driver's Avatar
 
Join Date: Oct 2003
Location: Dallas, GA
Posts: 921
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

The second picture is the polestar, I bought the foam wings and plans from Bill Evans about 15 years ago, nice airplane, still have it put a S.T. 51 in it might have to break out and fly it again!!!!!

Pete
rv7driver is offline  
Reply With Quote
Old 04-16-2007, 01:49 PM
  #13  
Ed_Moorman
My Feedback: (1)
 
Ed_Moorman's Avatar
 
Join Date: Jan 2002
Location: Shalimar, FL
Posts: 4,059
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Just finished a Pole Star. All balsa. We couldn't find a foam core at the time so my buddy cut out balsa ribs for the plane. Power for testing is an OS .65LA/11-7 prop.

I am breaking in a Tower .75 to go in it. That's the Tower with the SK carb.

Covering is Ultracote Fire Red & Fluorescent green.

Attached Thumbnails Click image for larger version

Name:	Nl30182.jpg
Views:	20
Size:	74.1 KB
ID:	665895   Click image for larger version

Name:	Fd90919.jpg
Views:	26
Size:	79.2 KB
ID:	665896   Click image for larger version

Name:	Xv65030.jpg
Views:	31
Size:	77.4 KB
ID:	665897  
Ed_Moorman is offline  
Reply With Quote
Old 04-16-2007, 03:43 PM
  #14  
Strykaas
Senior Member
Thread Starter
 
Join Date: Mar 2003
Location: New York, NY
Posts: 4,571
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Hi Ed,

Looks cool. What kind of flying performance does this Polestar have ?
Strykaas is offline  
Reply With Quote
Old 04-16-2007, 05:01 PM
  #15  
Ed_Moorman
My Feedback: (1)
 
Ed_Moorman's Avatar
 
Join Date: Jan 2002
Location: Shalimar, FL
Posts: 4,059
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

I should have mentioned that I haven't tested it yet. Saturday, we flew seaplanes. Sunday a front came through and the winds were 22 gusting to 31 so I decided to wait. This coming weekend ought to be better. I do want to test with the OS LA. I'd hate to bash a new Tower .75.

Back in the late 1970s and early 1980s, I flew several flying wings, including a few of my own design. I never did get around to building one of the Evans Scimitar variants. This is sort of 25 years getting around to it.

I was searching on the web and found a listing of all Bill Evans' designs, even the ones that weren't published. One interesting variant, for me anyway, was a twin Pole Star. It has 2 fuselages and a straight center section. He used two .46 size engines, but two .75s would be better. Looks like an easy mod. The fuselages are just boxes. Might have to shorten the noses with two .75s to get the CG reasonable. I would probably make the elevator in the center section and separate ailerons on the outside. From when I flew wings before, I found I liked separate controls better. With the modern radios, you could have elevons and an additional elevator in the middle mixed in. Man, I love my 9303.
Ed_Moorman is offline  
Reply With Quote
Old 04-16-2007, 06:40 PM
  #16  
Clean
 
Clean's Avatar
 
Join Date: Apr 2002
Location: Parkville, MO
Posts: 1,425
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

I was searching on the web and found a listing of all Bill Evans' designs, even the ones that weren't published.
What I don't understand is you make a statement like that and yet you don't provide the link?

Waaaaa
Clean is offline  
Reply With Quote
Old 04-16-2007, 09:35 PM
  #17  
Ed_Moorman
My Feedback: (1)
 
Ed_Moorman's Avatar
 
Join Date: Jan 2002
Location: Shalimar, FL
Posts: 4,059
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

I did a google on Bill Evans Pole Star, but I didn't save the link to that site. As I recall it was in his autobiography on the AMA site.
Ed_Moorman is offline  
Reply With Quote
Old 04-16-2007, 10:28 PM
  #18  
rmenke
Senior Member
My Feedback: (13)
 
Join Date: Jun 2004
Location: Merced, Ca., CA
Posts: 2,118
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Guys: Your just not old enough to know what a real wild bird of the early 70 were. Picture this. No expo., no dual rates. I built several wings in that time frame, the problem was controlling the things. Oh yea, no such thing as elevons function. We got the controls to operate as elevons with a slidding servo tray. The racers 1/4 midgets/forumlas etc were a blast. You got your control throw good to race, then just not enough up to land easy, so you came in hot. Amazing how spoiled we are today. ENJOY
rmenke is offline  
Reply With Quote
Old 04-17-2007, 07:02 AM
  #19  
Clean
 
Clean's Avatar
 
Join Date: Apr 2002
Location: Parkville, MO
Posts: 1,425
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Reminds me of this weekend. I through my Flipper and new something was wrong. It was rocking back and forth, I couldn't get the airplane trimmed even though it has been trimmed. Flew it a couple minutes till I got a grasp on it, enough to land and brought it in. For some dumb reason I had programmed exponential into the Elevons, a whole bunch of it. And I had also programmed 50% Differential in as well, both at once and for some reason so much. Cleared it out and flew it with 10% Differential, ahhh much better. But like you said, landings were really jerky at full rates, and too hot at low. So I eased Expo into the full rates and now everything is smooth again. We get spoiled fast, the first 10 flights on this thing were at full rates and evidently much more dexterous fingers.
Clean is offline  
Reply With Quote
Old 04-17-2007, 09:23 AM
  #20  
Ed_Moorman
My Feedback: (1)
 
Ed_Moorman's Avatar
 
Join Date: Jan 2002
Location: Shalimar, FL
Posts: 4,059
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

rmenke, my DOB is 1937. Started flying powered planes in 1950. I made a lot of my own sliding trays, but, as an engineer, I love the new technology of radios. When the first computer radio, the JR Galaxy, came out, I had to have it. Wouldn't go back to the old 4-channel stuff for anything. It is so much easier to turn on the elevon mix or click mate for hooking up the nose wheel steering servo. But, I know people who won't use a mix for anything.
Ed_Moorman is offline  
Reply With Quote
Old 04-17-2007, 09:37 AM
  #21  
mmattockx
 
Join Date: Apr 2005
Location: Calgary, AB, CANADA
Posts: 2,427
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Guys,

So, did anybody ever determine what that nasty looking machine is in the first post? Seems it's not the EPO variant of the Polestar. So what is it? It looks awesome, though. I would definitely agree with the F104 comparison... I need another plan for my collection of projects to be built.


Mark
mmattockx is offline  
Reply With Quote
Old 04-17-2007, 03:00 PM
  #22  
Strykaas
Senior Member
Thread Starter
 
Join Date: Mar 2003
Location: New York, NY
Posts: 4,571
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

So, did anybody ever determine what that nasty looking machine is in the first post?
See post #5. I was told it is.
Strykaas is offline  
Reply With Quote
Old 04-17-2007, 03:33 PM
  #23  
Ed_Moorman
My Feedback: (1)
 
Ed_Moorman's Avatar
 
Join Date: Jan 2002
Location: Shalimar, FL
Posts: 4,059
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Here's a picture on a magazine page that has 4 different Pole Stars. The short and very tapered wing one is the Pole Star X, also called the EPO for Expert Pilots Only. I found these on RC Groups at [link=http://www.rcgroups.com/forums/showthread.php?t=502443]Pole Star Page[/link]. The Pole Stars are on page 3 of the thread.

I like the twin.
Attached Thumbnails Click image for larger version

Name:	Lj22850.jpg
Views:	29
Size:	162.9 KB
ID:	666715  
Ed_Moorman is offline  
Reply With Quote
Old 04-17-2007, 03:53 PM
  #24  
mmattockx
 
Join Date: Apr 2005
Location: Calgary, AB, CANADA
Posts: 2,427
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Thanks guys, it hadn't sounded positive in the previous posts.

Ed, I will hunt around for more info on the EPO, it is a very interesting looking beast.


Thanks,
Mark
mmattockx is offline  
Reply With Quote
Old 04-17-2007, 04:08 PM
  #25  
Strykaas
Senior Member
Thread Starter
 
Join Date: Mar 2003
Location: New York, NY
Posts: 4,571
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Ever heard of the POLESTAR ?

Ed [sm=thumbup.gif]
Strykaas is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service