Posted by rchrist | Today @ 01:41 AM | 489 Views
After hard searching for the proper bearings to adopt the sunnysky 2302 motor for a 2.5mm shaft, no joy without spending to much for one bearing. So, while digging through a bin with odd stuff, I came across some compression tubing inserts (brass and stainless steel) that is perfect for this application, The 2.5mm shaft fits perfect into the inserts. The stainless steel inserts needs little filing on the OD to fit into the 3mm bearings. The brass inserts drops right into the 3mm bearings. I also put a insert into the locking end of the motor with the flared end on the outside. The other inserts length were shortened by filing them short and the flared side of the inserts were placed on the inside. I did not put any loctite between the inserts and bearing race, but, if I need to, I will. So far, it's smooth as .....

The entire driveline of the 3mm hisky hcp100s can also be adopted to the k110 to avoid what I did with the inserts. If I didn't find the inserts, hcp100s driveline would of been my choice. And it's probably more robust.
Posted by jmxp69 | Yesterday @ 10:04 PM | 882 Views
This is a first look at the Detrum Z3 Autopilot:
Detrum Z3 Autopilot First Look - Add GPS Based Return to Home to Any RC Plane (14 min 29 sec)

Posted by burkefj | Yesterday @ 06:34 PM | 1,167 Views
42" long, 20" wingspan, 16.1 oz rtf

Dynasoar Rocketry X-15 R/C rocket glider flying on E-20 and F-24 motors (2 min 31 sec)

Posted by jmxp69 | Yesterday @ 06:13 PM | 1,172 Views
I've had my 3d printer for a few months now and this video shows some of my favorite gadgets I've made for RC:

Awesome 3D Prints for RC (12 min 38 sec)

Posted by Gimbal Guy | Yesterday @ 06:07 PM | 1,173 Views
if I had to choose it would be the self winding, my second love next to rotor builds is trying to rebuild time pieces and have a vast understanding of them, with this I present 2 of the 3 heaviest hitters in horology.
NAUTILUS 15400 VS ROYAL OAK SELF WINDING 41MM LUG 2 LUG Patek Philippe Audemars Piget (2 min 44 sec)

Posted by old4570 | Yesterday @ 05:28 PM | 1,191 Views


Yeah , a actual 1s to 3s ESC .....
I did buy one , and will play with it ASAIGH ( as soon as it gets here )


Posted by rchrist | Yesterday @ 03:33 PM | 1,239 Views
K110 DMD with my modded k120 to k110 skid for a 300mah 2s lipo.

The brushless motor is a sunnysky 2302 v3 1500kv for 3mm shaft and I added support for a 2.5mm main shaft. The k110 was previously a 2s with k120 brushless motor and this gear less set have lots more torque. With the motor mounted flush to the frame it offers much needed frame support that stops the flexing on the driveline that could break the main shaft guide.

It have two new esc with one for a 2s brushless tail with a 10000kv 1103 motor. The tail esc is running blheli firmware for tail. Holding nice. I also painted the frame and skid and regret it as I don't like it. Will do it over with new frame and a fresh modded skid.

I've done the same (DMD) for two k130 and I like this build best.
Posted by rchrist | Yesterday @ 03:06 PM | 1,245 Views
Besides carrying a larger 2s lipo, my modded k120 skid adds better front support and ground clearance than the k110 stock skid.
Posted by ronaldopn | Yesterday @ 11:28 AM | 1,418 Views
This may sound obvious but only now, after a few years of brushless motor winding, I had this simple but genius idea.
I never realized how useful it was until I did it for the first time.

So, if you are not sure about the original motor kV and can't test it anymore (i.e. burned or damaged windings) or if you are not sure about the results you may get with an unusual and experimental winding scheme, simply pick the smallest gauge you can find and do a test wind.
Using a very thin gauge wire will allow you to quickly wind and check the exact kV you'll get with it. Below is an example with my GA6000 rewound with half parallel dLRK Y wind for 164kV. The subsequent wind with 14AWG got exactly the same result.

Since currents during kV check will be very low, even a thin gauge wire will suffice and provide accurate results.
Ronaldo

kV check on thin wire wind
Quick wind for kV check (0 min 6 sec)


kV check on the final wind (14AWG)
GA6000 164kV 11T hpdLRK Y 14AWG (0 min 6 sec)
...Continue Reading
Posted by Gimbal Guy | Yesterday @ 09:43 AM | 1,460 Views
had to show some builds, launches and well.... I'll let mr. Steele show you the rest!!!
PROS ONLY FPV 4 MR. STEELE (2 min 56 sec)

#mrsteele #fpv #stunts #dives #launches #ummagawd #flights #pro
Posted by Old_Pilot | Yesterday @ 07:23 AM | 1,679 Views
I got tired of wasting aluminum and or music wire trying to bend landing gear with a vice/pliers/hammer....So I built a 2 ton hydraulic press brake out of materials readily available at HD/Lowe's, and that doesn't require any welding and or special tools....worked like a champ..so I decided to build a wire bending tool.....same deal, no special tools.....drawings are included.....The press brake cost me less and $50 and the wire bender less than $10.....

Y'all have fun
Posted by ptern | Feb 25, 2020 @ 11:59 PM | 1,946 Views
Hi all,

I was working with BLHeli firmware for a while just to adapt the control signal to accept PWM up to 16kHz.
The reason for it was, the WL-Toys K110 gyro board is an excellent flight controller and has the tail signal of 16KHz PWM.

With my limited knowledge, I am create this thread just trying to explain the differences between BLheli Electronics Speed Controllers (ESC).

Currently, there are 3 types of BLheli ESC's.
BLHeli, BLHeli_S and BLHeli_32

BLHeli: The birth of an open source firmware for ECS's. The target was for tiny micro helicopters and was
started with the 8 bit ATMEL microprocessor, the mega8. It was proved to be popular so it expanded into multi-rotors vehicles.

But soon, the mega8 was found to be lacking of resources and power to control various type of motors.
It was then replaced by the Silabs processor.

TO BE CONTINUED.......
Posted by moxjett | Feb 25, 2020 @ 03:01 PM | 2,601 Views
I had an issue with my Freewing 70mm F-16 jet. The nose retract stopped working and I had to land without the nose gear. I think the retracts on this jet are cheaper than some of the other jets from Freewing. I replaced mine with the Freewing F-5 nose retract that I already had. It dropped right in, but the strut was a little longer so I cut out some of the foam.
Posted by rclad | Feb 25, 2020 @ 01:56 PM | 2,807 Views
After more than a year (off and on construction) I finally finished the build, and conversion to electric, of the new Extreme Flight 104" Extra 300 V2. I'm calling it the EV2. IMAC contests and practice took a lot of my time during the flying season last year, so the build itself took less time than the calendar dates indicate, and even less time than just planning and researching the best options for an electric version.

Major revisions to the airframe:
  1. Modified wings and ailerons to accept a single servo (Futaba A700), rather than two per aileron, and buried the servo in the wing to reduce drag and align the servo arm with the movement of the aileron control horn.
  2. Modified rudder servo compartment in the tail to bury the servo (Futaba A700) in the fuse to reduce drag and align servo arm with the movement of the rudder control horn.
  3. Modified motor box structure to accept a battery tray that self aligns on insertion, is pinned in place to avoid bolts, and automatically connects to the ESC and voltage sensors.
  4. Modified canopy with pins and CF reinforcement to tie both sides of the motor box together where part of the original fuse structure was removed.
  5. Automated the canopy locks using a DPDT switch and Actuonix linear servos to reduce time removing and replacing the canopy to reload fresh batteries.
  6. Automated ESC arming using a DPDT switch, an Actuonix linear servo, and a Jeti Anti Spark Connector

Adding these custom options required time to design, test and...Continue Reading
Posted by GroundControlRC | Feb 25, 2020 @ 09:52 AM | 2,926 Views


Review - FlyBear FX816 P38 Lightning Micro Warbird & Maiden Flight

Here is a link to the Video:
https://www.youtube.com/watch?v=ivj621WJi2o

This Item is courtesy of Banggood!
I want to thank Banggood for sending this Plane for Review.

I love these (2) Channel Planes from FlyBear.
So far, I have reviewed their Red Baron Biplane, F-16, and SU-35 Planes.
These Micro 2CH Planes are a lot of fun to fly.
They are also a great way to introduce RC Planes to Kids.
All of their Planes I've reviewed so far needed a bit of nose weight to fly perfectly.
Let's see how this one performs and if it needs any nose weight.

Banggood GCRC
https://www.banggood.com/custlink/GmDmQ1nVkO

#GroundControlRC #GlueAndFly #ScratchBuildPlanes #FlyBear #P38Lightning #FX816 #Warbird

You Can Help Support Us By Using Our Affiliate Link To The Product Below. A small commission (At No Cost To You) helps us buy more items to review.

FlyBear FX816 P38 RTF
https://www.banggood.com/custlink/Gv3DqD4yON

The Dimensions of the Stock LIPO is: 33mm x 21mm x 8mm
These LIPOs should work but I cannot confirm! Be warned!

5PCS 3.7V 300mAh Lipo Battery Set for H8 H22 Eachine H8 Mini RC Quadcopter
https://www.banggood.com/5PCS-3_7V-3...47791920140372

5PCS 3.7V 300mAh 25C Lipo Battery Charger Set for H8 H22 Eachine H8 mini RC Quadcopter
https://www.banggood.com/5PCS-3_7V-3...47791920140372


See you in the Air!

Build, Fly, Crash, Repair, Rinse & Repeat!

Ground Control RC™ Glue & Fly™ Series Scratch-Build Planes

Consider Supporting Our Channel by becoming a Patron at: https://www.patreon.com/groundcontrolrc
Patrons of the Channel will have Exclusive access to Aircraft Plans & Content!

See Us On Youtube | Patreon | RCGroups

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Posted by fastmax | Feb 25, 2020 @ 08:22 AM | 3,125 Views
With spring right around the corner I figured it was time to put together a new backyard bird. 1S Whoops are my favorite for my small half acre backyard, and my old Beta75 has quite a few miles on it so I decided to start this spring with a fresh build.

I was hoping to put together a couple new Whoops with my current budget, so the hunt for some inexpensive parts began. I came across this frame on Amazon that included a set of props for only $5.99 so in the cart it went. RCG member KadosMicroMotors recently had a big sale on some Whoop parts, so I was able to get some new BetaFPV 0703 15000kv motors from him for quite cheap in the RCG classifieds. Control is handled by a BetaFPV F4 1-2s AIO and camera/vTX is an AKK A5 on this 3D printed mount from Thingiverse. I power all of my Whoops with GNB batteries, and this one like my other 75mm is running on these 450mah 1S batts.

Everything went together butter smooth, and last nights indoor maiden was a success! Now I just need to beat the incoming snow storm and get it outside for a real flight, and some DVR footage.
Posted by Manudepron | Feb 25, 2020 @ 06:29 AM | 3,220 Views
Made from plain 3 mm depron. Original Design is from AJ Woods.
It attracts crowd at each meeting....
Flight characteristics are superb !

Indoor SR 71 toon RC plane (0 min 54 sec)


WS: 37 cm
Length: 32 cm
Wing Area: 6.3 dm²
Weight with equipment and batt: 41 grs (36 grs before paint and decals)
7 mm motors
1S 200mah lipo