Posted by alex111 | Yesterday @ 11:55 PM | 286 Views
My blue Amsterdam tug boat
Posted by old4570 | Yesterday @ 08:27 PM | 627 Views
OMPHobby Trashmitter (1 min 41 sec)


A) Just a video to show the dead band .
B) This is the Tx from the T720 > Has less dead band than the Tx bundled with the S720
C) Not sure how the Rx is dealing with so much dead band > Might explain all that hunting up and down !
D) S720 really wants to be BNF
E) Yes you can fly the S720 on the trashmitter , but it's nothing special . For me just a very disappointing experience .
F) The trashmitter works with the T720 , probably because the T720 is a more stable / forgiving platform . ( With full stability )

I would love to fly one of those S720 that some folks have crowed the virtues over ! With a hobby grade Tx I will believe it , but on the bundled trashmitter ? I would like to fly that !!!!
Posted by lawrence4 | Yesterday @ 08:27 PM | 639 Views
Beta85X Setup Bidirectional DSHOT and RPM Filter (More Flight Time on Tiny whoops) (2 min 6 sec)


More flight time.
Cooler motor.

Step:
1.Update your BLHeli_32 ESC to version 32.7 or newer in order to use bidirectional DShot.
2.Update your FC to Betaflight 4.1 or newer
3.setup RPM filter.(suggest settings in the photo below)

Reference:
1.same as BLHeli_S ESC:
https://www.rcgroups.com/forums/show...y-whoops%21%29
2.HOW TO CONNECT/FLASH BLHELI_32 ESC VIA FC PASSTHROUGH:
https://oscarliang.com/blheli-32-esc-fc-passthrough
3.Download the latest BLHeliSuite configurator for BLHeli_32 here:
https://github.com/bitdump/BLHeli
4.ImpulseRC driver fixer download:
https://impulserc.com/pages/downloads
5.FIX FLIGHT CONTROLLER DRIVER ISSUES – CAN’T CONNECT OR FLASH FIRMWARE:
https://oscarliang.com/fc-driver-issues-flash-firmware/
Posted by newelectro | Yesterday @ 05:24 PM | 813 Views
Roc hobby vtail to replace my phoenix
Posted by rclad | Yesterday @ 03:50 PM | 966 Views
I've been wanting to try Pattern for a long time, so I finally bought a used 2m Black Magic to get started. It was originally set up with a glow engine and tuned pipe. The original owner took that out and sold the plane with a Plettenberg Xtra 30-10 Evo brushless motor.

While I put that together I've been practicing the Advanced pattern sequence. I finally have the sequence memorized and flew it correctly without a caller yesterday. My 104" Extra has a similar thrust to weight ratio and wing cube loading as the Black Magic, so it's a decent substitute, for now. At least to get the sequence down.
Posted by BSteeve | Yesterday @ 11:38 AM | 1,416 Views
Got the engine mounted and the cowling cut. Happy with spacing. Ignition and throttle servo next.





...Continue Reading
Posted by Rama Rao | Yesterday @ 08:32 AM | 1,823 Views
I acquired this Fleetwind-60 some time last year (2019). This 1946-made engine came to me with missing gaskets and broken insulating bush in the timer assy. Also, the needle was missing. During these (relatively) leisure times I decided to restore this engine and see how it runs.

Here is the video:

Fleetwind Vintage Ignition Engine's Restoration & Running (5 min 24 sec)

Posted by GroundControlRC | Yesterday @ 07:30 AM | 1,885 Views


Glue & Fly Series - F-22 Nano V1 - Flight #8 - It's a Keeper ;-)

Tuned and ready to see it's capability ;-)

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

Here is a link to the Video:
https://www.youtube.com/watch?v=6If-AqZv-as

Here are links to all the Components I chose for this Nano Parkjet:

***Motor
HappyModel EX1102 13500kv Brushless Motor (1.5mm Shaft - 13500kv)
https://www.banggood.com/custlink/3v3KUbNbSI

***Receiver I used (Make sure the Receiver you choose matches your Transmitter Protocol!)
Receiver 4CH Low Voltage DSM2 DSMX
https://www.banggood.com/custlink/DmvvqnbNIQ

***Servos (I have ordered these and the ones they sent did fit the Micro Receiver I have. These were JST-SH 1.25mm Pitch on the Connector)
2Pcs 1.7g Low Voltage Micro Digital Servo Mini JST Connector for RC Model
https://www.banggood.com/2Pcs-1_7g-L...47791920140372

***Prop
10 Pairs LDARC 2.5 Inch 65mm-2blades Racer Propeller(hole diam:1.5mm) M2 Screw Fixing For Toothpick FPV
https://www.banggood.com/10-Pairs-LD...47791920140372

I cannot find the DYS 7A OPTO ESCs any more.
I have just received this 7A OPTO ESC but I have not tested it yet.
***ESC
1-2S 7A Brushless ESC High Speed For RC Airplane
https://www.banggood.com/1-2S-7A-Bru...47791920140372

#GroundControlRC #GlueAndFly #ScratchBuildPlanes #GFSNanoF22 #GFSNanoF22V1


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 access to the latest Aircraft Plans & Exclusive Content!

See Us On Youtube | Patreon | RCGroups

https://www.youtube.com/c/GroundControlRC
https://www.patreon.com/groundcontrolrc
https://www.rcgroups.com/forums/member.php?u=754189
Posted by 1stGeppetto | Yesterday @ 04:16 AM | 2,210 Views
Completed May of 2020. Glass over wood with finished with rattle can paint.
Posted by 1stGeppetto | Yesterday @ 04:13 AM | 2,207 Views
Completed in September 2019. Polyspan covering, Nitrate Dope to attach and fill the weave, Butyrate Dope for colors.
Posted by 1stGeppetto | Yesterday @ 04:09 AM | 2,227 Views
Completed in March of 2020. Mad Max meets Steam Punk.
Posted by Amanda BH | Yesterday @ 03:07 AM | 2,364 Views
Brotherhobby Hyperbola 5" BNF drone , the frame is T800SC-24K carbon firber.

Mostly, the frame use T300 or T700 carbon firber on the market

Hope you can get more information from the attached pictures
Posted by Eric Zhu | Yesterday @ 02:34 AM | 2,436 Views
AGFRC A81BHMW 45KG IP67 Waterproof Digital Steering Servo High Torque Programmable Full Metal Gear Brushless Servo for 1/8 1/10 RC Models, 180 Degrees

The AGFRC A81BHMW Waterproof Programmable RC Servo is an upgraded version of the A80BHSW Waterproof Programmable Servo, which overall improves the performance and quality. The maximum torque is increased from 36KG to 45KG, the strength of the bearing is improved, and the collision resistance is stronger, making this A81BHMW servo more suitable for applications in 1: 8 scale RC model such as off-road and climbing car, etc.

This A81BHMW servo is also a member of AGFRC PROGRAMMABLE SERVO, equipped with AGF-SPV2 servo programmer (included) which can change the torque, speed, angle, and other parameters of the servo what you want, even 360 full range angle or 720, etc. It's really convenience for users to DIY the parameters of their servo according to the situation.

Moreover, the manufacturer will continue to UPDATE the various firmware of the A81BHMW servo, users can download the updated file from the manufacturer's official website to update it through the AGF-SPV2 servo programmer in the future.

Name: 6.jpg
Views: 2
Size: 2.62 MB
Description:

Introduction
  • AGFRC Waterproof digital servo uses high-precision production technology to reduce production deviation and improve product tightness, used IP67 Waterproof design, can be common use in RC climbing cars, 1:8/1:10 Buggy, RC boat, helicopter, robots, mechanical arms, and others RC model.
  • Good choice for the RC
...Continue Reading
Posted by Nickerz | May 28, 2020 @ 11:32 PM | 2,804 Views
This morning, I bought a 2nd Great Planes PT-40 but this is the original PT-40 that came out around 1987 I think (whereas version 2, the MKII came out around 2008) and I bought this original version 1 from an RCGroups.com member. Total paid was...

$100.00 (Grand Total)
$100.00 (Plane ARF Kit, Engine & Radio!)
$Free (Shipping)
$N/A (Tax)

This is NIB and I wanted this to keep for nostalgic reasons since this is technically the plane I viewed in the two videos I had as a kid and wanted to buy back then but I felt building it would have been a little more than I was ready for. So now I have that chance and I got such a great deal on this as they go for $250+ on eBay! USPS shows the delivery date between TBD...

Here is the original classified ad...

I already have an engine for it too (NIB O.S. MAX .40-FP which is the original engine recommended in the manual and in the videos I watched as a kid!) I'll take pics and do an unboxing video once I get it. Here's a pic from the seller...


Posted by AlkaM | May 28, 2020 @ 08:56 PM | 3,248 Views
Many of you will be familiar with some of this already. I skip a lot of things about switching losses and current circulation in the motors. This is about how these two electrical variables affect real world performance. This is to hopefully give an idea of what PWM even is to those unfamiliar.. feel free to post your comments experience down below.
Motors are driven by voltage. In order to control the voltage that a motor coils "pulse width modulation" (PWM) is the process by which this happens. If you have a 12 volt battery and want to run the motor at half speed (6 volts ) you would use pwm with a 50 percent "duty cycle". This means half the time the switches are ON that drive the motors coils and half the time they are OFF.
Pwm frequency ( 24khz, 48khz etc) is the number of times per second that these switches are turned on or off. You could do pwm yourself and probably manage a few switches per second. So picture a toggle switch, when the switch is turned on the current starts to rise in the motor coils and the motor begins to move. When its off the motor will coast and begin to slow down. At a very low frequency like this you can see that it might be hard on a motor as the current goes through large swings with each turn on turn/ off phase. This current ripple creates heat in the motor coils and is a major power loss. To make it smoother you need to increase the frequency. Ideally, to switch fast enought that the current has not enough time to...Continue Reading