HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jul 26, 2008, 03:47 PM
-----
Woodstock 1's Avatar
Ireland, County Kerry, Kerry
Joined Dec 2005
6,931 Posts
Thanks Ming !
Woodstock 1 is online now Find More Posts by Woodstock 1
Reply With Quote
Sign up now
to remove ads between posts
Old Jul 27, 2008, 02:07 AM
Registered User
Son, Norway
Joined Sep 2004
3,307 Posts
During our "soaring vacation" in Denmark, our two Fox's performed great both in light and medium (10-12m/s) wind conditions. As mentioned earlier, CG is at 1.5" and this seems to be OK. As an improvement, I would suggest to move the wing joining carbon rod to the normal location for a main spar, maybe incorporate it with the molded in carbon tube, that then will have to be 90 dgr on the wing root cord. Another improvement is to have a carbon tube inside the stab, mostly to avoid warping. EPP tends to change shape permanently if bent for some time! One of our elevators was curved by just laying on the table with 1/3 of it unsupported! I have also noted some warping of the inner part of the trailing edge of the wing.

Fred
flarssen is offline Find More Posts by flarssen
Reply With Quote
Old Jul 27, 2008, 07:56 AM
Ming's Avatar
Hong Kong
Joined Jun 2002
4,621 Posts
Dear Fred

Thank you very much for your suggestion.
Yes, the main spar better can located on the CG position and this is my original design.
But this is not success on the foam molding for some of reason (can't tell at the moment.)
I may try to slove this problem on next lot of production.

About the warping issue, one of the solution is use new PN material.
That is something between EPP and EPS but not EPO.
You will see this materail using on F-35 very soon.

Keep you comment in, thank!

Ming Lou
Ming is online now Find More Posts by Ming
Site Sponsor
Reply With Quote
Old Jul 27, 2008, 04:31 PM
Yesss ! Look ! It flies !
fragamort's Avatar
Namur - Belgium
Joined Apr 2004
27 Posts
HELP : No more wingtip!

Hi all, Hi Ming!
During my vacations in the French Alps, I flew my Fox again and it was great, but after a landing in higher grass, I didn't immediately notice the right wingtip had been broken just after the aileron... and I didn't find it back Is it possible to have (buy) it appart , or do I need to find another Fox owner to make a new one with fibre ?
fragamort is offline Find More Posts by fragamort
Reply With Quote
Old Jul 28, 2008, 02:45 AM
Registered User
Son, Norway
Joined Sep 2004
3,307 Posts
Quote:
Originally Posted by Ming
That is something between EPP and EPS but not EPO.
You will see this materail using on F-35 very soon.
That's good since EPO is forbidden in all kind of sports .
It's amazing how many types of foams it's possible to make, and how different their characteristics are.

Fred
flarssen is offline Find More Posts by flarssen
Reply With Quote
Old Jul 28, 2008, 04:57 AM
-----
Woodstock 1's Avatar
Ireland, County Kerry, Kerry
Joined Dec 2005
6,931 Posts
Quote:
Originally Posted by fragamort
Hi all, Hi Ming!
During my vacations in the French Alps, I flew my Fox again and it was great, but after a landing in higher grass, I didn't immediately notice the right wingtip had been broken just after the aileron... and I didn't find it back Is it possible to have (buy) it appart , or do I need to find another Fox owner to make a new one with fibre ?
I'm sure the Windrider site lists all the seperate parts for sale.
Woodstock 1 is online now Find More Posts by Woodstock 1
Reply With Quote
Old Jul 29, 2008, 10:07 PM
Registered User
Gales Ferry, CT
Joined Jun 2008
71 Posts
Quote:
Originally Posted by cvanscho
I'm sure the Windrider site lists all the seperate parts for sale.
Don't be so sure.
planekrazee is offline Find More Posts by planekrazee
Reply With Quote
Old Jul 29, 2008, 10:11 PM
Registered User
Gales Ferry, CT
Joined Jun 2008
71 Posts
Quote:
Originally Posted by flarssen
During our "soaring vacation" in Denmark, our two Fox's performed great both in light and medium (10-12m/s) wind conditions. As mentioned earlier, CG is at 1.5" and this seems to be OK. As an improvement, I would suggest to move the wing joining carbon rod to the normal location for a main spar, maybe incorporate it with the molded in carbon tube, that then will have to be 90 dgr on the wing root cord. Another improvement is to have a carbon tube inside the stab, mostly to avoid warping. EPP tends to change shape permanently if bent for some time! One of our elevators was curved by just laying on the table with 1/3 of it unsupported! I have also noted some warping of the inner part of the trailing edge of the wing.

Fred
My wings and stab were warped right out of the box.
planekrazee is offline Find More Posts by planekrazee
Reply With Quote
Old Jul 30, 2008, 02:39 AM
-----
Woodstock 1's Avatar
Ireland, County Kerry, Kerry
Joined Dec 2005
6,931 Posts
Quote:
Originally Posted by planekrazee
Don't be so sure.
My mistake . I'm sure Ming would be open to selling parts.

As for the EPP material, there are pros and cons to various foams. In the case of the Fox, Ming did the development to a large extent in consultation with members of this forum. IICR, he wanted to mould the Fox in EPS, but the very clear call from members was for EPP so that the plane would be tough enough for slope use. He must be tearing his hair out now when he hears of complaints about the use of EPP!

My Fox came out of the box as straight as a die.

Chris
Woodstock 1 is online now Find More Posts by Woodstock 1
Reply With Quote
Old Jul 30, 2008, 08:23 AM
Dean
A10FLYR's Avatar
USA, CO, Littleton
Joined Apr 2005
3,876 Posts
Quote:
Originally Posted by cvanscho
My mistake . I'm sure Ming would be open to selling parts.

As for the EPP material, there are pros and cons to various foams. In the case of the Fox, Ming did the development to a large extent in consultation with members of this forum. IICR, he wanted to mould the Fox in EPS, but the very clear call from members was for EPP so that the plane would be tough enough for slope use. He must be tearing his hair out now when he hears of complaints about the use of EPP!

My Fox came out of the box as straight as a die.

Chris
And we're glad he did use EPP. The planes are holding up well to the abuse. A few pieces of carbon do wonders. I covered the wings with the light "New stuff" as well. I have thought of glassing a EPS Fox to see what would happen..

Dean...
A10FLYR is online now Find More Posts by A10FLYR
Reply With Quote
Old Jul 31, 2008, 08:58 AM
Ming's Avatar
Hong Kong
Joined Jun 2002
4,621 Posts
We do everything possible to keep the wing straight on production, packing and shipment.
See the super thick cardboard between two wings on the packing.
Who like EPS Fox? I may able to make limited edition in the future.

Ming Lou
Ming is online now Find More Posts by Ming
Site Sponsor
Reply With Quote
Old Jul 31, 2008, 09:51 AM
Just chillin @ 403 MPH
Jantar2A's Avatar
Boulder Colorado
Joined Nov 2005
5,208 Posts
It's pretty easy to take any warp or twist out of wings and stabs while covering the parts,,,but on the other hand I've known people that can put warps and twists into a perfectly strait wing durring the covering process, JMO,,lol

Oh yeh,,raw foam should be saved for kids to toss around in the front yard free flight style.

Nick
Jantar2A is offline Find More Posts by Jantar2A
Reply With Quote
Old Aug 02, 2008, 12:15 PM
Ming's Avatar
Hong Kong
Joined Jun 2002
4,621 Posts
Send me an email if need spare parts for Fox.
I am more than happy to do some to fix up you Fox.

Ming Lou
Ming is online now Find More Posts by Ming
Site Sponsor
Reply With Quote
Old Aug 03, 2008, 03:25 AM
I'm torquing to you!
Mr Kamikaze's Avatar
Wattle Grove NSW Australia
Joined Nov 2006
7,374 Posts
We had 3 Windrider Foxes at our outlanding comp today along with an assortment of other planes. The Foxes stole the day.

http://www.swenban.rchomepage.com/page.php?id=18
Mr Kamikaze is offline Find More Posts by Mr Kamikaze
RCG Plus Member
Latest blog entry: Hucking my Katana MX
Reply With Quote
Old Aug 03, 2008, 03:56 AM
Leaning doesn't help
Gluggy's Avatar
Sydney
Joined Sep 2005
820 Posts
Not quite Mr K, I snapped the wing on mine? I've glued it so many times now, its almost a composite glider Hey Ming, do you sell just wings?
Gluggy is offline Find More Posts by Gluggy
Reply With Quote
Reply


Thread Tools