Posted by Dynam RC Detrum | Today @ 03:38 AM | 253 Views
Hey man, maybe you know Dynam,but havn't heard our branch Brand- Detrum Tech. She seriously on electronic remote control systems. Now introduce her transmitter :

-Adopting 2.4GHz direct sequence spread spectrum (DSSS) and multiple frequency-hopping spread spectrum (FHSS) technology, the R/C system has high receiving sensitivity and strong anti-interference capability, can support a stable operating for more than 1km on the ground and more than 1.6km in the air.

- Adopting wireless chips, with extended power amplifier (PA) and low noise amplifier (LNA) can extremely improve the system output power and receiving sensitivity.

- Using all-band antenna on transmitter. The transmitting efficiency is greatly improved.

- Can experience a smooth flight operation by using the 4096 section precision sticks and selecting four stick modes.

- Achieving 2.6ms response time, even all channels it acts synchronously.

- USB upgrade function always keeps your GAVIN-6C the latest program.

- Support Fail Safe function, which could predefine the servo position by transmitter when receiver out of control.

- Trainer function make a skilled instructor can teach a student with fly skills.

- Can be used to set the programmable item of the flight controller for airplane.

USA buy it -
My mail [email protected]
Posted by jmxp69 | Today @ 12:09 AM | 911 Views
The C-47 Skytrain is ready for maiden. Here's how the build went:

Dynam C-47 Skytrain Build Review (13 min 23 sec)

Posted by CaseySP | Yesterday @ 07:29 PM | 1,272 Views
This is how I (hopefully) increase safety by splitting power supplies. Using the otherwise unused ESC BEC power for non-essential servos to preserve power for the RX and essential controls, eg should the retracts jam.
Posted by HD48 | Yesterday @ 06:20 PM | 1,472 Views
I just finished this today, an original design balsa profile for electric power. I designed this years ago for glow, and have built dozens of them. With the advancements of foam airplanes, I don't see these balsa profiles as being as useful as they were 20 years ago, but I got bored and wanted to build something, so here it is.

600 squares
44 oz AUW including 3S 2600 lipo.
Thrust 45 motor and speed control, made for the P.A. Katana 52
Savox servos
Falcon 14 by 7 carbon prop

It should fly like the others I've made, but since its loaded a little lighter ( 10.5 oz per sq ft) should have a bit more hang time
Posted by simages | Yesterday @ 06:08 PM | 1,558 Views
The C-3 design was derived from the Aeronca C-2. Introduced in 1931, it featured room for a passenger seated next to the pilot. Powered by a new 36-horsepower (27-kilowatt) Aeronca E-113 engine, the seating configuration made flight training much easier and many Aeronca owners often took to the skies with only five hours of instruction. Llargely because of the C-3's predictable flying characteristics. Both the C-2 and C-3 are often described as "powered gliders" because of their gliding ability and gentle landing speeds. It was almost impossible to make a hard landing with an Aeronca because the pilot could easily see his wheels approach the runway. This highly prefabricated kit belongs in the "super scale competition" models category. Once built, the airframe is extremely light and clean but still able to withstand the high loads and stresses associated with aerobatic flight. The manufacturer uses the latest construction techniques including Laser CNC cutting to achieve high strength and low weight. Each part and every detail are meticulously made.

Wingspan: 51.25"
Length: 28.75"
Weight: 25-26 oz. (710-740g)
Channels: 4,5

Will start soon.....

Build Thread HERE
Posted by DutchRC | Yesterday @ 12:43 PM | 2,300 Views
Halloa people

recovered from the onslaught of calories over the last month I hope?

The Diatone / Mamba quad stacks have amassed a Great reputation over the last years. They have proven to be both affordable and good performers.. Don't get me wrong: even the best stacks Can fail.. I have at least 10 quads with Mamba stacks, and over the last year I have had 1 4-in-1 ESC fail after a few flights..

AND.. they just released several updates / upgrades! The first one I got my hands on is the F722s flight controller + F50 Pro ESC stack

Link to it: Mamba F722S + F50 Pro stack

Lets have a look at both the stack and how it is different from the 2019 version

Diatone Mamba F722S + F50 Pro 6S STACK REVIEW (10 min 38 sec)

Specifications of the stack:
ESC size: 36.5 x 46.5 mm
FC size: 37.9 x 37.9 mm
mount: 30.5 x 30.5 mm mounting pattern
continuous A: 4 x 50 = 200A
BEC: 5V 2A & 9V 2A
peak A: 4 x 55 220A (10 seconds)
Voltage: max 6S ( 7.4V - 25V)
protocol: Dshot300 - 1200
ESC processor: 32 bit
stock BF version: 3.5.5
OSD: yes
flash: yes, 16 MB
Posted by jmxp69 | Yesterday @ 10:37 AM | 2,650 Views
I put together the Dynam Waco in this video. Piece of Cake!
Dynam Waco RC Plane Build Video (36 min 47 sec)

Posted by GroundControlRC | Yesterday @ 09:12 AM | 2,817 Views

DustOff #9 - "Glue & Fly Series" F22 Micro V2 - Rocket Ship to the Moon ;-)

Here is a link to the Video:

#GroundControlRC #GlueAndFly #ScratchBuildPlanes #F22Micro

Wind was 3mph-5mph (5kmh-8kmh) again and I had some Trim work to do after Centering my Servos.
I had not know about Sub-Trim when I first setup this Micro Parkjet.
After Centering my Servos with Sub-Trim it was time to Trim it out again.
Now, it's all Trimmed out and flies nice and level at cruise speed and the Rolls are completely Axial ;-)
I have absolutely no Trim in the Transmitter at all, it's all Mechanical Trim ;-)

The skill level needed for this Parkjet is Intermediate to Advanced.
Intermediate setup is a 2S Power System with 10 points more Dual-Rate than on a 3S Setup.
Advanced setup is a 3S Power System.
It's very docile on a 2S Power System, Fast & Aerobatic with a 3S Power System.

The GFS F22 Micro V2 Plans are available for Patrons!

The GFS F22 Micro V1 Plans are available to Youtube Subscribers!
Here is a link to the Plans & Docs:
You're going to love it ;-)

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.

Here are links to the components:

Racerstar Racing Edition BR1407 3500KV 2-3S Brushless Motor
...Continue Reading
Posted by Eric Zhu | Yesterday @ 02:43 AM | 3,664 Views
AGFrc 19KG Digital Low Profile Servo High Torque Programmable Full Metal Gear CNC Case for 1/10 1/8 RC Models, Control Angle 180

The AGFrc A50BHL RC servo is just like AGFrc A80BHSW 36KG Programmable Waterproof Servo which is a updated version with addition like programmable design. This new design servo can be programmed by the AGF-SPV2 servo programmer (included) to change the torque, speed, angle, and other parameters of the servo what you want, even 360 continuous rotation control, changed to be a multi-circle servo or a winch servo is possible. It's really convenience for users to DIY the parameters of their servo according to the situation.

Moreover, the mannufacuter will UPDATED the firmware of the A50BHL servo, users can download the updated file from the manufacturer's official website to updated it throngh the AGF-SPV2 servo programmer in the future.

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  • AGFrc high quality digital low profile servo can be common use in remote control climbing cars, 1/10 on road, off road, truck, planes, mechanical arms, and others remote control toys.
  • Upgraded Version, this servo is PROGRAMMABLE by AGF-SPv2 servo programmer to change the torque, speed, angle, etc.
  • Good idea for the remote control toy enthusiasts who want to DIY their RC toy, and also good choice for university professors and students who are interested in developing software for robot parts. Its also a good choice for some of the industrial device applications.
  • CNC top and middle
...Continue Reading
Posted by kopterheld | Yesterday @ 02:31 AM | 3,764 Views

This is an adapter to connect an analog diversity module to the DJI Digital FPV goggles outside by cable. Clean solution, but you should install the current DJI update to at least v01.00.02.00 so you get very low latent times up to 20ms. So you don't need any other analog FPV glasses anymore !!
A video module is simply plugged in here and you can fly analog tiny whoops, toothpicks.


Video - DJI FPV goggles with analog Module - RX Port (DE) with EN subtitle
DJI FPV Brille mit analog Modul RX Port (3 min 29 sec)

...Continue Reading
Posted by old4570 | Yesterday @ 01:19 AM | 3,899 Views
Gemfan RotorX 2535 ( Test ) to 30,000 rpm (3 min 15 sec)

Gemfan RotorX 2535 test to 30,000 rpm
This prop is a 2 piece 4 blade ... ( No really )
Interesting , apparently can be run in 4 blade mode or 2 blade .. ( I tried both ways in the video )

Brushless Su-27 is being glued together ..

( I did post some printable 3 views of the parts needed for a DIY )
Posted by phyngineer | Yesterday @ 12:45 AM | 3,882 Views
If you're unfamiliar with drones (or even unfamiliar), reading all the words in the industry and expecting to fully understand it can be daunting. That's why we are here to help with the Drone Vocabulary Guide! The goal is to make sure you understand what you are reading, especially the specifications.


A device for sensing and measuring 3-dimensional acceleration mainly used to help stabilize drones. Usually, these are built into the flight computer.

Automatic leveling

Enables drones to automatically travel in uniform flight.

Autonomous flight

No human intervention is required to complete the flight of the system.


Beyond sight. The operator cannot see any flight of the drone with independent vision (binoculars, cameras, etc.), including when the operator cannot tell which direction the drone is facing.

Coverage area

The area that a drone can cover during flight. For many drones, this will change depending on the payload configuration.

Cruising speed

Speed ​​of the drone during the flight cruise phase.


The ability to see, sense or detect air traffic or other hazards and take action to prevent collisions.

flight duration

Drone flight time. This is usually the longest time when viewing drone specifications. When scheduling a task, this is the time required to complete the task.


Ground control station. GCS is usually the interface that operators use to control or issue...Continue Reading
Posted by Reckless_fpv | Jan 16, 2020 @ 10:45 PM | 4,278 Views
Posted by Dgarrett | Jan 16, 2020 @ 10:16 PM | 4,439 Views
So I remember around 1974-1980"s in some R/c magazine about a high wing kit that somebody converted to a mechanism to release systematically fake bombs under the wings. Did I dream this article? I've looked in my magazines without success. Does anyone remember this short article?
Posted by jmxp69 | Jan 16, 2020 @ 09:59 PM | 4,467 Views
I opened up a Grand Cruiser today. Nice Plane!

Dynam Grand Cruiser First Look (16 min 52 sec)

Posted by Jahn Dee | Jan 16, 2020 @ 08:21 PM | 4,711 Views
Hi all:
This obviously is my first blog post... where to start.
I'm retired living in the Philippines as an Expat. A great place to be. We have to date no restrictions on R/C activities except drones are Geo fenced from Airports. (very few airports however) There are very few bonafide R/C flying fields, but they do exist, just not near me. So after 50 years or so in R/C living in the U.S. I'm looking at appropriate ways to re-enter the hobby on a reduced scale. My thoughts are trying either electric sailplanes and small electric foamies. Been looking at a lot of FMS stuff, it's cheap and fairly well made it seems. Their 3 meter Fox looks pretty awesome for a big foamie. But to start I'm thinking a Volantex 2.4 meter electric sailplane, and or an FMS cub or Beaver 2 meter.

My past experience includes 40% aerobatic planes and 30% and 40% sailplanes. There is no way to accommodate this size plane here let alone find a place to fly, so KISS will be my motto at this point. BTW we do have a lot of potential slope sites here to explore for soaring.
Cheers, more to follow
Posted by BDOG1 | Jan 16, 2020 @ 07:15 PM | 5,101 Views
Oh boy the weather pattern continues
Same as last week steady 20 or so with +30 mph gusts...And started out with some sunshine before the snow squalls moved

I brought out the 2m Gerry and maidened a 56 inch " Sally" from the GEMS boys in Cleveland -
As it turned out I only flew the Sally, put in a hour flight and had a Blast
What a great flying ship !
Mine comes in at 24 oz with a removable wing and rudder,there is plenty of room for ballast if desired
Posted by ken2011 | Jan 16, 2020 @ 06:15 PM | 5,392 Views

About 10 years ago, I started my own project - "LiPo Professor" measures internal resistance of LiPo cell(s) accurately in micro-ohm resolution.

This idea is based on a expensive/industrial measurement method using AC current.
Appling weak (~mA) 1kHz (in my memory) AC current through a capasitor to LiPo cell(s), and measure AC voltage simultaneously. Then we can get the internal resistance of cell(s) easily to calculate R=Voltage.AC/Current.AC. Then display it on a LCD.
Cells have some static capacitance, so phase detection/correction is required.

This circuit generates sin wave instead of dirty square wave using internal DAC of MCU for accracy. And caliculation method is "coherent detection" whitch have high sensitivity and acclacy. It need computation power slightly, so I used DSPIC MCU. (It's outdated IMO, I'll choose STM32F3 if it is now on).

Eventually I planned this product to commercial. But terrible earthquake in 2011/03/11 was changed everything. I eleminated this project and went into mourning.

Now I open all of this project.

Download Link
UnZip Password : LipoProfessor2011

CAUTION : About ALL of this data/project, I do not have any responsibility including support/update it.

Includes PCB,Schematic design (CAD is Designspark : free), Spice Simulation, Firmware, and BOM.