Are there any thermaling flying wings out there? - RC Groups
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Oct 31, 2007, 10:57 AM
FlattyFlier's Avatar

Are there any thermaling flying wings out there?

Anyone KNow of some good thermal flyign wings?

I'd like something to break up my huge polyhedral/conventional tail fleet.

Foam or balsa, big or HLG, kit or ARF, i'd just like something different.

Mini-reviews, pics or vids would be great too!

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Oct 31, 2007, 11:02 AM
Lazy dog
OhioPete's Avatar
I just bought a Zagi THL off the "For Sale" Forums last week. It's a 48" lightweight wing that is advertised as a thermaler (is that a word? )
According to the instructions the the AUW should be around 11.5 oz's, mine ended up around 12.5 using HS-81's a 4 cell (AAA Flat pack) battery and a Berg 4L RX. They explain how it can be bungee launched in the instructions but I'm just going to be using it as a light lift slope flier.
Oct 31, 2007, 11:13 AM
Red Merle ALES
Curtis Suter's Avatar
Well I'm currently working on this:

and will make the wings by this method:

But I've blown the model up to 100" wingspan and will build two fuselage pods that the wings will bolt to, one with an electric motor and 7 Cell pack and the other as pure glider. I'll also be adding a small a parachute to the aft end of the pod which will be deployed on short final.

A friend of mine had a German kit called the SB13, about 80" span that had the chute and it was cool to see it deploy on final approach.


PS The wing twist has been reduced to 4 degrees.
Oct 31, 2007, 12:20 PM
dare to thermal

take a look at
Select Leistungspfeile a.s.o in the menu. Here you can see whatīs state of the art...
But they didnīt sell kits - except the "Yoda"

Another excellet site is
Raimund sells nice kits. These too are state of the art.
ps. for the english version just click on the "union jack"

Last edited by Bernd Brunner; Oct 31, 2007 at 07:11 PM. Reason: nurfluegel-modelltechnik : english version
Oct 31, 2007, 02:13 PM
Born to be free
tommyt's Avatar
Check out this link: B2 Streamlines

Oct 31, 2007, 02:16 PM
Registered User


I have flown a Windlord for 25+ years and it could hang with Aqulias and Esprits. About 1200 squares at 100 inches. Check Ray Hays' web site for a picture and kit info, kitted by Ray. Plans are available, also. You will not be disapponted with it at a woodie TD contest.
Oct 31, 2007, 02:34 PM
agony sweetns the victory
atjurhs's Avatar
Here's my thread on them, and the one that I'm building (but is currently not on my build board).
Oct 31, 2007, 03:55 PM
Registered User
Three flying wing HLGs that I know of are called: Aluah, Boomer, and Red Herring. You can find multiple threads on all three in the Hand Launch forum. All three are made of foam and I think all three are still being manufactured.
Oct 31, 2007, 04:37 PM
Ohio Pete,
They lie!! Use it as a sloper - in 20Kts+ put a slab of sheet lead over the CG and fly in in a gale
Oct 31, 2007, 05:58 PM
Registered User
Jim Deck's Avatar

Zagis CAN soar!!

Sorry to disagree with a previous poster but the Zagi THL will thermal. Getting the tow hook in the right spot is a bit tricky and too much pull on the histart will cause the Zagi to flutter. Besides, the hook gives me something to hang on to when I do take it to the slope. It's not a floater and it's a bit of a challenge but it will hang in lift. For histart launches, I put a small area of sandpaper on both sides of the wing at the trailing edge. Hang on to this - then let 'er rip.
Oct 31, 2007, 06:18 PM
Registered User
I used to hand launch a CO8, it was actually pretty decent. It doesnt thermal like a modern DLG, but was better than the skeeter I had.
Oct 31, 2007, 06:32 PM
B for Bruce
BMatthews's Avatar
Ken Bates builds an updated Windlord for thermal flying....

A buddy of mine flew a Windfreak for a few years before semi retiring to raise a family. It was an excellent thermalling wing.
Nov 01, 2007, 12:49 AM
Registered User
RBMartin's Avatar

Suggestions for ZAGI THL

I have a ZAGI THL that I purchased years ago and never built becuase I lived in flatland and never was convinced it would thermal well emough to justify the work putting it togethor.

I have sinced moved to Co and am thinking about putting it togethor as a sloper. I was planning on buying a carbon rod and inserting at the cg point as a spar for strength. Any other suggestions? And does this sound like a good idea?

Bruce Martin
Nov 01, 2007, 02:42 AM
Registered User
Geode's Avatar
Birdwing - a semi scale flying wing for HLG/DLG and mid/light wind slope soaring
Nov 01, 2007, 09:21 AM
auto-tune remix
slopemeno's Avatar
The Zagi THL flies great as-is. If you really pay attention to the weight thay can be built quite light. Use light servos, and a 270 or smaller battery pack, and try running your CG back around 8" from the nose, with really small elevator throws.

I used to combat the Zagi LE, which also had no spar system, and they actually held up well. And even they would thermal in very light air on the slope.

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