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Knoll53's blog
Posted by Knoll53 | Jul 17, 2014 @ 12:49 PM | 1,418 Views
Inspired by a short discussion, here's my approach to a forward swept wing prototype. It features single surface elevator and flaps with a rudder for roll and yaw. Still thinking about how much dihedral to use. Some where in the 3 to 5 degrees range.

What I like about this configuration is that for nose up the elevator/flap deflects down, thus increasing camber and AoA. Good for slow thermal flights and in reverse good for fast slope flying.

Wing skins
PolyC and glass (1 min 16 sec)



Food Wrap at fuse did a nice job of controlling loose glass edges and compressing all. final finish needed minor sanding to remove small ridges.
...Continue Reading
Posted by Knoll53 | Jun 24, 2014 @ 10:56 PM | 3,171 Views
I've been flying a Zagi lately and the only thing it needs is the option of high wing loading.
Posted by Knoll53 | Mar 24, 2014 @ 09:21 AM | 2,755 Views
Looks like I'll get a stab at a rudder enabled, thick plank with dihedral with a rebuild of a Saracen. I'm adding wingtips, a new fuse, tail and elevons. Was surprised to find that the fuse plug became quick stiff after one coat of Poly C. I'll glass right over the plug without tape it first, so the hope is that the Poly C with reduce the amount of epoxy needed.

Saracen redo (0 min 17 sec)

Posted by Knoll53 | Feb 19, 2014 @ 11:47 AM | 2,528 Views
Using the TLAR method for pitch neutral flaps on a curvy, hard to analyze wing.
Posted by Knoll53 | Feb 08, 2014 @ 12:47 PM | 5,073 Views
Inspired by the FootLoose Floater.....it's big brother.

Kent
Posted by Knoll53 | Feb 01, 2014 @ 12:02 PM | 1,978 Views
Inspired by the Wind Freak, my version of a Floater Plank.

Kent
Posted by Knoll53 | Jan 11, 2014 @ 01:45 PM | 2,963 Views
I've yet to build a light plane..........so here's my shot at it.

Size is based on my preferred flight pack. That is, in order to carry this flight pack, I'll need a 60" span. I'm treating this as a plank, so no twist and one degree of dihedral.
  • 4 AA batteries and hitec 82MG servos
  • .5 taper ratio

With the wing sweep and the very light winglets, the goal is no nose lead.

Kent
Posted by Knoll53 | Jan 01, 2014 @ 12:49 PM | 1,934 Views
New 1100 sq. in floater
Posted by Knoll53 | Oct 19, 2013 @ 11:09 AM | 2,511 Views
Dave Alchins Helios on it's maiden flight.
Posted by Knoll53 | Oct 03, 2013 @ 10:36 AM | 2,374 Views
Thinking about a big thick swept wing floater with a camera pod to fit a standard camcorder.
Posted by Knoll53 | Jun 22, 2013 @ 11:29 AM | 2,924 Views
Thinking about a small and hopefully light DLG glider for sport flying and thermal flying. It's not quite a plank and not much of a swept wing. It should have the pitch stability of a swept wing. The plan is to use the extended nose to balance the glider without added nose weight. Maybe an over sized battery to balance if needed. Just elevons with a center flap to add camber for slow flying and possibly crow for landings.

Kent
Posted by Knoll53 | May 31, 2013 @ 04:25 PM | 3,376 Views
Here's the tow I use for spars.
Posted by Knoll53 | Feb 22, 2013 @ 03:59 PM | 3,966 Views
After snapping the wing tip off on a bad bungee launch, I decided to have a thorough overhaul of this lightly built ship. Now that I've flown it a bit, I know that it will be a dedicated slope ship, so I'll make it more durable this time around.

Kent
Sticky: Alpine Sled
Posted by Knoll53 | Dec 08, 2011 @ 03:18 PM | 4,621 Views
The more I fly out in Big Sur, the more I like it. It would be nice to have a glider that I can SEE. My Horti 2.0 is way too small. On a good day. the killer thermals out there will take the heaviest glider up to the heavens. Andres's Beluga plane with it's thick airfoil was the inspiration for this glider.
Posted by Knoll53 | Nov 29, 2011 @ 07:54 PM | 5,064 Views
Cast your vote !
for a new Nurflügel forum


I've put in a request to create a new forum for Horten style aircraft.
please see this link to learn more and to cast your vote.
http://www.rcgroups.com/forums/showthread.php?t=1547670
The rules are that 50 replies are needed to get things started.

Thanks,
Kent

Edit: The new Nurflügel forum is up and running here
Posted by Knoll53 | Jun 19, 2011 @ 09:52 PM | 5,552 Views
Today's practice with the ultra draggy on board video configuration on the Baby Bowlus. Lift conditions were not great so landing pattern had to be on the money. Hard base leg turn proved to be a challenge with this big heavy wing.
First Flight
Bowlus on board video - first flight (5 min 2 sec)

Valley of Death
...Continue Reading
Posted by Knoll53 | Apr 11, 2011 @ 03:12 PM | 7,325 Views
Thinking about the Horten 10v, 3.75m, again. Only loosely based original design drawings. Thinking of adding flaps.
Posted by Knoll53 | Dec 01, 2010 @ 03:06 PM | 6,519 Views
This plane will most likely never be done.
Posted by Knoll53 | Oct 24, 2010 @ 10:07 AM | 7,056 Views
Just finishing up my first 1/4 scale build. What a beating. Looks like this one will live with a weak spar due to poor grading on the spar caps. Word to the wise, don't trust the supplier. Check the slope of grain on spar caps.
Flies nice.
Kent