Posted by ptern | Yesterday @ 11:59 PM | 317 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.

Posted by moxjett | Yesterday @ 03:01 PM | 977 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 | Yesterday @ 01:56 PM | 1,119 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. Adding a few custom options like automating the canopy locks and ESC arming, and designing, testing and building a battery tray to automate the connection to the ESC and voltage sensors, also took significant time.

Some photos of the build are posted here, but I will be adding the remainder (well over a hundred!) in the next few days.

I hope to get some video of this sweet flying plane soon. Below are some of the pre-flight and post flight pics taken at the maiden on Sunday, February 23.

Field temperature was below 50F with winds about 10 mph down the runway. I didn't perform any aggressive maneuvers like a snap roll or the crazy stuff 3D guys do, just slow rolls, reverse 1/2 Cuban 8s, and a couple humpty bumps with aileron rolls up and down. Once I got the plane trimmed out she flew beautiful lines without any mixing. CG ended up slightly behind the main spar, which is perfect for aerobatics.

I should have stayed at 50% on the throttle until batteries were cycled a few times and the temp outside was warmer. First time I went to full...Continue Reading
Posted by GroundControlRC | Yesterday @ 09:52 AM | 1,298 Views

Review - FlyBear FX816 P38 Lightning Micro Warbird & Maiden Flight

Here is a link to the Video:

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

#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

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

5PCS 3.7V 300mAh 25C Lipo Battery Charger Set for H8 H22 Eachine H8 mini RC Quadcopter

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:
Patrons of the Channel will have Exclusive access to Aircraft Plans & Content!

See Us On Youtube | Patreon | RCGroups
Posted by fastmax | Yesterday @ 08:22 AM | 1,495 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 | Yesterday @ 06:29 AM | 1,581 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
Posted by jmxp69 | Feb 24, 2020 @ 09:23 PM | 2,197 Views
Here's my maiden of the B-26 Widowmaker. It got sporty a few times
Dynam B-26 Marauder [Widowmaker] RC Plane Maiden Flight (12 min 54 sec)

Posted by old4570 | Feb 24, 2020 @ 08:39 PM | 2,292 Views
One problem after another !

A) Servos plugged in the wrong way - Rud and Ele in the wrong servo ports on the Rx board
B) They used 4 pin servos ( B hives )
C) The control arms for the Ailerons were hitting the fuselage , no clearance for them . ( Idiots )
D) Rudder and ail servo arms needed to be re fit as they were not right ( Angle )
E) Battery does not fit . I had to cut foam away from the battery bay so that I could fit the battery into the fuselage . Without cutting , no way the battery would fit .
F) The transmitter belongs in the rubbish bin . Butt , and it's a big butt ! This is the RTF version with stability .
G) Stupid not using a mainstream protocol - like - Frsky - Flysky - DSM2 - S-FHSS ( Really stupid )

Oh well ! This is the plane I have wanted for a long time . And unfortunately it is so far some what disappointing due to all the work needed to just make it work . Off all the reviews I have seen , not one complaint or criticism . ( What the parking lot ) . This one , there was plenty to complain about ! In fact there is no way I would recommend this to a new person to the hobby , not even as a second or 3rd model . If how ever you are a Veteran RC person , then you should be capable of assessing and correcting problems as you go along .

To any and all reviewers that have told porkies about the super cub ( eat dirt ) .
It's getting so you cant trust anyone any more ! Either that or I am the only person to get a problem child ( What are the odds of that = I better check my lottery ticket - might be onto another winner )

Next I guess is a flight or crash video ..

Motor draws 8.9A on the factory supplied prop ..

PART 2 ( pictures )
Posted by burkefj | Feb 24, 2020 @ 04:49 PM | 2,478 Views
I decided to do an upscale of my YF-12 Interceptor kit. This is the interceptor version of the A-12 that was used for testing the Aim-47 missile and by Nasa for high speed/altitude testing. One was lost in an accident, another was damaged and was later used to splice onto the remains of an SR-71 to become an SR-71C, the only survivor is in the USAF museum in Dayton. It had shorter truncated strakes because of the round nose cone that contained the radar. This caused some stability issues and lower fins and a foldable centeral fin were used to help, due to landing issues I left off the lower fins.

This model uses 2.6" lightweight tubing and cone, 9mm depron wing with 1/8" carbon spars, 3 in the wing about 10" apart. Elevon control running a single 500mah 1s lipo in the nose for power to the rx and hs-65hb servos. 27.5 oz rtf with a 32mm G-12 RC motor. Videos show two flights with 24-25 year old motor reloads that were sealed and stored properly, however one burned in 4 seconds instead of 8 and was very fast, one burned in 10 seconds and with less thrust than normal, but the model handled it great, trim and glide settings were perfect and it was very docile.

Large YF-12/SR-71 RC Rocket glider (2 min 40 sec)

Posted by DutchRC | Feb 24, 2020 @ 11:17 AM | 2,879 Views
Halloa RC poeple..

I recently compiled a video for people that are new to self-building (or maybe RE-building) multirotors.. In this reasonably short part of the build I'll be throwing the latest Betaflight firmware onto the FC and doing a first general swoop of the settings
And if you Are new to this, there will be tips & tricks in the video you want to know about..

Link to the stack I am using here: Diatone / Mamba F722S Pro + F50 ESC

Hope this helps you out!

Perfect 5" FPV Drone Build Guide - P6: BETAFLIGHT 4.1.x CONFIGURATION (32 min 5 sec)

Posted by JureZ | Feb 24, 2020 @ 10:42 AM | 2,930 Views
Posted by PittSpecial | Feb 24, 2020 @ 05:54 AM | 3,360 Views
Posted by GBLynden | Feb 24, 2020 @ 04:57 AM | 3,412 Views
This my detailed Unboxing Of The E-flite UMX Turbo Timber BNF Basic UMX RC Plane:

Detailed Unboxing Of The E-flite UMX Turbo Timber BNF Basic UMX RC Plane (14 min 3 sec)

Here are my Review Notes for this E-flite UM Turbo Timber:

- Wheel plastic piece update over the first E-flite UMX Timber
- It has a 3-bladed prop like the E-flite UMX Cirrus
- A higher 3400kv brushless motor comes with it for more power
- The plane can fly with 550’s as seen in some of my videos.
- Its lights all over the plane are awesome!
- The new chipset they use in this Timber UM allows for telemetry, just not the new advanced Smart Telemetry!

- Longer nose compared to the original UMX Timber.
- Shorter flight times compared to the Ultra Micro Timber.
Posted by Balsaworkbench | Feb 23, 2020 @ 11:27 PM | 3,678 Views
For Keven Schneider,

Here's that OS 60 FP. I ran it a couple of years ago on a Cloud Dancer. I bought it from ebay and thought it had been run, but it wasn't broken in yet. Now it has a few hours on it and the compression is very good.
Posted by old4570 | Feb 23, 2020 @ 10:22 PM | 3,733 Views
Bee 490 flying wing (17 min 44 sec)

Flying my Bee 490 ..
CG is about 105mm

It was impossible to trim for level flight !
The bee was either climbing or diving ( gently )
There was no level flight .
I attribute this to the CG still being too far back @ 105mm from the nose .
The wing turns tight .
I was flying this small wing slowly , and I think very close to stall !
In fact I did stall it one time .
I also crashed it in the video cos I took my eyes of it for a moment , that was just long enough for the Bee to hunt the ground . ( No damage )
But the bee did fling the battery and voltage tester alarm . ( damage could have resulted )

Hindsight !

@ 105mm CG there is still instability
I would change my suggestion and offer a 90mm to 100mm CG location .
The Bee can fly slowly , but I think I was flying close to stall speed ( Risky business )
Next time , will be with the 1000mAh 2s and the 100mm CG
Flying weight was 143.4 grams = Porky ! for a 490mm wing .
No wonder I stalled it into the ground that one time ( on video )
Flight time = Over ten minutes and the battery was 3.9v per cell when I called it .
Battery voltage checker alarm was set to 3.7v ( never got there )

Would I recommend a Bee 490 = Oh hell yeah ! Mine is Porky , build it to 100grams or less and you will be rewarded with an
incredible flight envelope . Crash survive ability and with the right power combo , some really nice flight time . The power to weight on this one is just under 1:1 and if I went 3s I could probably rule the world . ( Not really ) On 3s this would be so fast .

The Bee 490 is after all a twin wing kit ! , and my next one will be 18650 .....
Posted by jmxp69 | Feb 23, 2020 @ 09:56 PM | 3,716 Views
I got the B-26 put together and covered my experience with it in this video:

Dynam B-26 Marauder RC Plane Build Review (18 min 28 sec)

Posted by Tamiya tony | Feb 23, 2020 @ 08:54 PM | 3,736 Views
Turned the river jet into a moomba wake boat!