I’ve replaced the old receiver with an AR 637T and Avian 30 A ESC for telemetry and reverse thrust.
A CG/hoist was installed for shoreline retrieval. A plastic vinal report cover protects the forward bottom for runway taxi/takeoffs.

RTF weight with a 2200 3S is 46.2 oz. Wing area is 416 sq in. = 16.0 oz/sq ft. WCL =9.4 = experienced pilot and aerobatic.

Hi all,
I joined this group about a year and a half ago. I’ve since changed email providers. Old email is dead. With out it I could not access this site to sell my things. That being said I re joined and don’t have posts that allow for pm’s. ( I only had three or four posts prior. I did buy two arfs from classified) I have three arfs that are really good deals that got interest right away. They ask for pm’s to finalize the sales and when I can’t reply in that manner they just drop out. What am I to do? I’m selling because of health issues. I’ve just sold two arf’s on profile brotherhood, you can go to that site and see the sales under my same name Funfly4u2.

Robart Update - RC Gear Door Hinges

Here is a hinge I have never seen before. It is designed to allow you to have a very tight space with your gear door.

Take a Look!

Robart Update - RC Gear Door Hinges (6 min 19 sec)

#350 Gear Door Hinges

1/5 & 1/4 Scale (2 pkg.)Includes 1 LH & 1 RH HingeA large metal door hinge for use in landing gear doors or bomb-bay doors. Designed with a nylon bushing, and nut and bolt assembly for easy installation or maintenance.

GO HERE TO GET THE HINGES - LINK

From Hobbyking

We’ve partnered with Flying Finn (on YouTube) to launch a brand-new 5-part Learn to Fly training series — built to help beginners take their first steps into the world of RC planes.

This easy-to-follow series is designed for new pilots of all ages and covers everything from aircraft setup and radio configuration to flying techniques and safe landings. Hosted by young RC enthusiast Finn and his dad Trevor, the series is a fun, educational journey that makes learning to fly accessible and enjoyable.

Whether you're just getting started or helping someone else enter the hobby, this series is your go-to guide to building skills and confidence in the air.

Learn to Fly with Finn – Episode 4: Beginner RC Flight Training Series / Basic Flight Maneuvers (7 min 23 sec)

Learn to Fly with Finn – Episode 2: Beginner RC Flight Training Series / Assembly (31 min 50 sec)

...Continue Reading

Reverse leash (5 min 45 sec)

Some testing with a reverse leash mode was promising. The trick is the mechanical angle sensor only goes up to 50 deg reliably. It basically tapers its maximum speed from 40 to 50 & then immediately goes to minimum speed reverse at 50. There's no practical angle where it goes forward at minimum speed. It's always slightly above minimum speed when going forward. It might be smarter to make it go to minimum speed at 40 deg instead of tapering.

It no longer runs away forward if you stand too far behind it in leash mode. It normally just backs up & stops. It now runs away in reverse if you stand beside it. If you get beside it, it tends to get stuck oscillating backward & forward. The oscillation makes it slowly turn away from the leash & end up staying pulled in reverse. It's arguably better than the case of running away forward, but not a perfect solution.

The best way to drive it is to pulse the leash instead of holding it in the sideways direction. The days of holding it to make it turn sharply in the forward direction are over though. It's unknown how disastrous the loss is. There could be a way to add hysteresis after it goes in reverse, whereby it stops below 50 & has to go back below 40 deg to go forward again.

It only turns when going forward. In reverse, the steering points in its configured direction towards the user with no feedback.

The trick with steering in reverse is all the use cases...Continue Reading

From HK

To better serve our customers, we are expanding and relocating our US Warehouse! The new facility will allow us to stock more products and ship faster.

To prepare for the move, we’re offering a limited-time Stock Clearance Sale with deep discounts—many below cost! Don’t miss this chance to grab amazing deals before stocks run out.

Shop now and save big while helping us lighten the load for our relocation!

GO HERE FOR THOSE DEALS - LINK

GO HERE FOR THIS SALE - LINK

...Continue Reading

L-39 Pratt's (4 min 7 sec)

With Kallend's EDF Whistle.

All the Video Action of Warbirds Over Delaware

I want to give a big thanks to Saul at Plane Fun RC for the hard work and great videos!

Walk Around at Warbirds Over Delaware 2025 (17 min 19 sec)

Legend Hobbies B-17 Warbirds Over Delaware 2025 (8 min 15 sec)

...Continue Reading

I ordered a USB interface for NGFF M.2 SSD .



It was compact and cheap , but only works with NGFF SSD drives .

...Continue Reading

I like my Pelikans so much that I asked my friend in Hungary who has kit making skills to make a custom size Pelikan for the US SAM Speed 400 event.
He already was making a 1/2A size which is just slightly smaller than what our US rules allow for Speed 400, so he made me a 370 sq. in. size of which we got 4 laser cut kits and 3D printed Speed 400 mounting cowls with his kit.
He is a very talented modeler and SAM flyer in Hungary and has become a great friend.

The method of construction is very similar to the large Pelikans of which I have built 2 of the 2.6 sq. meter and 2 of the 3 sq. meter versions so I am well versed in the larger Pelikans now. As I've mentioned my experience with flying SAM Old timers is well founded and now with flying Pelikans for a couple years I find this models to be the best I've ever flown and most like a modern competition Sailplane.

The wing and stabilators are of somewhat conventional stick construction using a building board but the fuselage is unique among old timers and I've built quite a few.
Also the use of a stabilator instead of elevators make trimming far easier since there is NO need for adjusting wing or stab incidence since the whole stabilator to move same as in modern competition sailplanes.
The Fuselage is built using cut away bases as part of every fusleage bulkhead and these are located on a supplied base platform that has the slots for the bulkheads already located and laser cut. There are 3 of these platforms that...Continue Reading

Hello,

Like each year the video of the classic large scale endurance race : 12h Yankee Challenge

12H Yankee Challenge - 1/4 SCALE RC CAR - ENDURANCE RACE 2025 AT SAINT-AFFRIQUE (23 min 11 sec)

https://www.rcgroups.com/forums/show...-UWB-DJI-ideas


Continuing the UWB concept, a big win would be some minimal ability to drive backwards. The rule would be to drive straight in reverse at a fixed speed if the detected steering angle was over 90 deg & the detected distance was over a certain amount. The mane use case is a few street crossings which require backing up.

Another growing advantage is the ability to access the truck while facing any angle. Currently, the leash requires facing a certain way, usually down wind or facing the sun. It can be difficult in a confined space or with a mane.

The UWB system would probably be more compact than the leash.

The current idea is to have 4 receivers in a rectangle & a 5th transmitter. The receiver package would plug into either the leash connector or the camera motor. It wouldn't be possible to drive in leash mode with camera tracking. The receivers would attach to the 4 corners of the truck. It remanes an expensive proposition with no guarantees in accuracy.

https://www.mouser.com/datasheet/2/4...et-1950775.pdf

The datasheet for the DW1000 shows +/- 5 cm of error, which wouldn't really do the job. zerokey.com is showing 1m for BLE. That's why the robotic golf cart & robotic suitcase videos are so skimpy with any footage showing the accuracy. If god intended robots to know their position, she would have created more money.

It would probably work for camera pointing, but not for anything else. It's possible that the existing leash could drive backwards if it detected a sliver of angle below its maximum. Above that, it could drive forward with speed proportional to the angle. It could be a more stable condition than what it currently does.

HobbyWing ESC programmer Howto with Skywalker ESC (13 min 11 sec)

I'm not sure what this one is but looks fun. I will try to get it flying....Continue Reading

Hello all! I am looking for some replacement parts for my dad’s old Double Horse 9086 27MHz for his birthday. I need a replacement pcb and antenna as well but I can’t seem to find anything online, I guess this was a very niche helicopter compared to the other models. Any help would very much be appreciated. Thanks!

As always a great event. The antonow is a classic from the 1990ies. It can release the Buran in flight!

I got to fly my A-10 and a foam Seavixen.

Buongiorno a tutti,
sono un nuovo iscritto
ho acquistato di recente in un mercatino dell'usato un aereo modello molto vecchio ma ancora da montare
trattasi di EDGE 540 NEW POWER MODELISM nuovo solo che mancano istruzioni di montaggio sicuramente lo si può montare lo stesso
ma mi sarebbe piaciuto averle mi chiedevo gentilmente se qualcuno le possiede o dove posso trovarle
ringrazio anticipatamente