Thread Tools
Apr 14, 2018, 07:41 PM
flyin' fool
goldguy's Avatar
Something you might want to try is a delta, there's a lot of ideas and designs here in these threads, pushers, pullers and prop in a slot. Personally I prefer a tractor/puller because of it's aerobatic capabilities. You can take any platform and put the motor where you prefer, just keep the CG the same.

The beauty of a modified delta is that it has lots of wing area, can be build light and is the best design for windy days.

Here's a real good platform to start with ................ https://www.rcgroups.com/forums/show...h-simple-plans
Sign up now
to remove ads between posts
Apr 16, 2018, 10:29 AM
Registered User
Extreme Sports's Avatar
Excellent, Gil. Glad you got something to fly before giving up on this design.

I never asked what the AUW of the 24" version was. I assumed that after your experiments with the small motors BorC gave you, you'd have a good feel for the right weight at that size. Out of interest, what was the RTF weight?

Suggest you also calculate the Cube Wing Loading (google the formula) for both your small and large planes. This will give you good data points for what CWL you are comfortable flying at this stage of your RC journey. CWL is a dimensionless numbers that allows you to compare the wing loading of planes of different sizes and is a good predictor of how a plane will fly. Generally as a beginner you want something below 5 or 6. My guess is your EZfly was even lower. Much above 8 starts to need to fly faster than most beginners or intermediates can manage.
Jun 14, 2018, 08:35 PM
Registered User
Thread OP
Hey all. I've been out of the scratch built world for some time. I'm blown away that my designs are still getting built. I always loved flying my wings and sadly I recently retired my 36" DS2 wing. Seeing pics of all these DS wings makes me want to do a new build. I think I have 4 motors kicking around in a drawer somewhere

Thanks for keeping the DS 24 alive!
Aug 15, 2018, 10:31 PM
Registered User

transmitter


How do I program a transmitter for this??
Aug 18, 2018, 12:29 PM
Registered User
Quote:
Originally Posted by forlack
Hey all. I've been out of the scratch built world for some time. I'm blown away that my designs are still getting built. I always loved flying my wings and sadly I recently retired my 36" DS2 wing. Seeing pics of all these DS wings makes me want to do a new build. I think I have 4 motors kicking around in a drawer somewhere

Thanks for keeping the DS 24 alive!
There is definitely interest. I did a video on the build and flight of your wing last year and it has over 20,000 views!

24" flying wing! the Dead Simple 24 $5 scratch build challenge (5 min 12 sec)
Aug 25, 2018, 04:27 AM
Registered User

DS Wing 30'' (75 cm)


I built 30 inches DS Wing by increasing the original drawing 123%. It flies well. I published some HD photos, video, and text here: http://ausleuchtung.ch/kfm2/.
Last edited by Alex M.; Aug 26, 2018 at 07:59 AM.
Aug 27, 2018, 08:17 PM
Registered User
elewon's Avatar
Nice wing!. Your prop choice is interesting How do you land the wing without hurting the prop?
BTW, I use same props on my Orka twin pusher.
Sep 08, 2018, 04:49 AM
Registered User
Quote:
Originally Posted by elewon
Nice wing!. Your prop choice is interesting How do you land the wing without hurting the prop?
BTW, I use same props on my Orka twin pusher.
I have built a new design of DS-30 by now. This time it is a twin engine puller (or a tractor):
KFm2 DIY flying wing, 75 cm DS 30 (0 min 49 sec)


I've made several flights with it already, and there is no problem with propellers at landing so far. The twin engine puller flies much better than a pusher.
Last edited by Alex M.; Sep 08, 2018 at 05:13 AM. Reason: adding images
Sep 23, 2018, 09:39 AM
Registered User

My new twin engine puller DS-30 with the GoPro Session 5 camera and the FPV camera


I build the new twin engine puller (tractor) DS-30 KFm2 which carries the GoPro Session 5 camera and the FPV camera:
DS-30 KFm2 DIY flying wing flight with the GoPro Session 5 camera (2 min 6 sec)


More details in the short article-report:
http://ausleuchtung.ch/kfm2/kfm2-gopro.php
Sep 27, 2018, 01:50 PM
Registered User

Parachute landing of the DS-30 KFm2 flying wing


One of the advantages of a puller (tractor) configuration is that the flying wing can be landed with a parachute. I make the parachute from a protective plastic sheeting for painting, hot glue, and thin nylon cords. It takes about 15 minutes to make it. The parachute is deployed either by the radio signal from the ground, or as a part of the fail safe setup. Here is the video of the parachute landing of the flying wing:
DS-30 KFm2 DYI flying wing parachute landing (2 min 10 sec)

The same mechanism, which is used to deploy the parachute, could be used for dropping say an emergency medical kit in mountains or a portable inflatable rescue device at sea. The parachute is a reliable technology. I used it quite a few times, and it never failed to deploy.
Nov 26, 2018, 12:12 PM
Registered User
Jack Reacher's Avatar
Hi, I am usually signed in as Apollo64 but due to forum glitch i have had to create new user
any way i tried to build a hybrid simple wing/delta wing and it did not fly, i will build a 30" version of the 24" simple wing as building the first one was a great intro to working with foamboard.......watch this space
Jul 07, 2019, 07:58 AM
Registered User

Prop size


Hi i built this got a 2200 kv motor tried a 2 cell and a 3 cell and i won't fly got a 5x3 or 5030 prop just goes about 20 ft to the floor ŕny advice please thanks ive got a wing wing z-84 that flyes well with them props thanks again
Jul 08, 2019, 09:45 PM
flyin' fool
goldguy's Avatar
What does the label say as to the size of the motor?
Feb 26, 2020, 01:09 PM
Registered User
I'm glad I found this thread. I'm working on mine now, but will need to wait on the slow boat from China. Shooting for <250g.

Weights I'm shooting for:
20.9g motor
3.9g esc
10g servos
1.5g receiver
12g F411-Wing
101g 2s Liion 3500 mah
33g Caddx Vista

Comes to roughly 183 grams which leaves 67g for the frame which will include a 3d printed motor mount. Needs a prop yet too. I thought being forced into sub 250g would ruin the hobby for me, but I'm having a lot of fun trying to figure out just what's possible at this weight limit.
Feb 27, 2020, 04:10 AM
Wingbreaker
Quote:
Originally Posted by scotty562
I'm glad I found this thread. I'm working on mine now, but will need to wait on the slow boat from China. Shooting for <250g.
.
I found this same thread looking for the same. A 249g FPV wing and this design from Forlak looks very promising.
I already had some positive experience with KFM wings. For sure this looks very promising. I'll use some things that I have in my boxes and I want to use a flight controller with osd. I have a couple of CC3d but I'm afraid that are too heavy.

I have 2 doubts (now, other will come)
- I generally use hot glue in this depron models. In this case will it be too heavy?
- carbon spars would add rigidity but additional weight. Will the wing be strong enough even without reinforcement?

I'm following

Al


Quick Reply
Message:

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
For Sale Frenzee 27 in. Flying Wing Kit, EPP Cores, 24 gm Brushless Motor, mount, prop sylair Aircraft - Electric - Airplanes (FS/W) 4 Nov 11, 2009 03:40 PM
My Simple Floats for 24" to 30" wing foamies Mario Foamies (Kits) 6 Jun 06, 2005 02:42 AM
Take a look at this 24 inch flying wing Acer Electric Plane Talk 2 Sep 10, 2001 02:29 PM