Posted by mike_kelly | Mar 19, 2019 @ 05:30 PM | 9,308 Views
The continued epsiodes of the Son of FrankenSolo build. Using Olliw's UC4H and a 3DR Solo surplus motherboard to create and advanced DIY quad.

I have gotten the UC4H powerbrick, UC4H ESC's, UC4H Display Notifier and UC4H GPS/MAG/Baro installed. Kinda the required basics to get flying.

Now for some frosting on the cake. I have wanted to experiment with a downward facing sonar since the APM days but the sensors available have always been marginal or quite expensive. The old HC-SR04 did not do much. The Maxbotix had noise isssues to deal with and the true LIDARS were in the hundreds of dollars.

For low altitude measurements Pixhawk depends on it's barometer. But the Barometer senses air pressure and that changes with the weather. So adding a better sensor for low altitude height measurements could improve landing and AltHold flight mode.



The new kid on the low altitude sensor block is the Benewake TFTmini LIDAR. It is not a true LIDAR (Light Detection and Ranging) because it does not use a laser. It instead uses a less costly LED light. But it seems to work well and is moderately priced at around $50.

OlliW took advantage of this new sensor and added it to UC4H. The UC4H Rangefinder. It could use the UART Tunnel technology but it is easy to setup and use as a UAVCAN device or the generic mode.



First install the UC4H Rangerfinder firmware on your General Purpose node.
using the UAVCAN GUI tool. Choose a unique node ID and leave the Channel ID=-1, to...Continue Reading
Posted by phillb | Mar 19, 2019 @ 05:26 PM | 981 Views
I am trying to setup FPV and I thought I'd share my experiences as a complete beginner.

Since posting on here a while ago: https://www.rcgroups.com/forums/show...th-my-setup%21

I ordered:
  • Eachine GOTG02 video receiver.
  • Run Cam Swift Mini
  • Tramp HV 5.8GHz Video Transmitter

After waiting for months, they finally arrived. Only today did I actually get a chance to connect it all up!

About me: I hate soldering!
...so I was glad to see that for the first bench test, none was required.

Between the free cables and connectors supplied in the transmitter and camera boxes, I could connect everything. I was very paranoid that something would blow up when I connected the battery, finally I plucked up the courage and connected it. A little red light appeared on the transmitter as soon as I did and nothing emitted smoke which was great.

Next, I connected the receiver to my phone and launched the FPViewer app on my Samsung Galaxy S7. It scanned the frequencies and I could see my kitchen!

Latency Test
Someone mentioned that latency could be an issue with this setup. I decided to perform a test. I filmed my phone whilst it was displaying the camera's video feed. I then dropped an object in front of both camera. After reviewing the footage, I think the delay was only around three to four frames. At 25 fps, this equates to between 0.12 and 0.16 seconds.

To me this is a big relief!

Next Steps
  • Buy some adapters for the power connectors so I can connect the Tramp to my main battery
  • Think about mounting the transmitter and camera to the plane
  • Think about mounting my phone to my transmitter - I have some ideas on this! Will update soon

Posted by turbinefancy | Mar 19, 2019 @ 01:39 PM | 5,396 Views
Short maiden flight of new Avios Spitfire in butterfly filled sky. She is one sweet bird!

My findings:
1. Requires surprisingly little right rudder on takeoff run to keep straight. Much better than all Warbirds in my collection.

2. Excellent low speed handling: for a heavily loaded plane (I fly with 6S 4000mAh 60C bats) she can land very slowly, even without flaps.

3. Unlimited climb!

4. With canopy open, the Avios Spitfire makes a very satisfying howling sound in high speed dive.

5. Control throws in the manual feels a bit unbalanced. Aileron high rates feels too soft compared to elevator low rates. Rudder throws feel excessive and tail wheel overly sensitive. I put aileron linkage to the inner most hole on servo horn and still have to reduce rate to 50% just to hit high rate of manual specified throws.

6. She will drag a wing tip when landing on hard surface. Narrow wheel track with notable positive camber combined with overly sensitive tail wheel makes ground handling very touchy. But I guess that's part of the scale Spitfire appeal.


All in all, an excellent warbird with great handling qualities in the air. Gratitude to Mr. Tom Hunt, Steward Warne and HK for making such a scale Spitfire accessible.

Howling Avios Spitfire (5 min 32 sec)


Avios Spitfire Maiden - In Butterfly Filled Sky (2 min 45 sec)
...Continue Reading
Posted by coreman | Mar 19, 2019 @ 11:26 AM | 6,772 Views
Video of the Landing Gear being used

A demo video showing our new Landing Gear in use on our 32" Yak55, 32" Extra and our 22" Mini Extra

$15/set including wheels

http://www.racores.com/paypal_order_...ml#LandingGear

#racores
Posted by old4570 | Mar 19, 2019 @ 04:06 AM | 1,706 Views


DVR Link

FPV camera Link ( Eachine Tx06 )

Ok , been testing this camera , but I had no way of directly recording the stream , until now ( I hope ) ..

Just need to check the camera outputs , make sure they match the DVR inputs ..
And hopefully I can do a little video recording ..
DVR = I dont know - YET !
Eachine XT06 FPV camera , so far it's very nice ! A am impressed .
And it was on sale recently , making it a very good buy . ( For the $ )
So hopefully I will have a review ( soon ) on both these , as it looks like they may make for a very nice pair !

E012 - No bind , 3 or 4 attempts and nothing !
So it might mean the fault lies with the flight control board ..
Oh well ! Stuff happens some times ...
Posted by KristofferR | Mar 19, 2019 @ 02:17 AM | 1,839 Views
Progress has been somewhat erratic.

After a lot of googling and eBay searching I found a local store, and they had ONE motor mount left. Since I already realised that a bent aluminium plate would not be sufficient - the Revo chassis tab can easily be flexed by hand and any motor mount that does not use the “arms” connected to the central part will move and vary the mesh - I decided to buy one.

Now I have embarked on a motor/ESC combo search. A Hobbywing EZRun combo is currently on top, but the $150 is slightly hard to stomach for this budget ride. But it is also an LHS option which IMHO could be more valuable than cutting $20 off the price. Until I press buy what remains is just classic overhaul action.

Picture show diffs being torn down.
Posted by GroundControlRC | Mar 18, 2019 @ 10:16 PM | 2,093 Views
DustOff #3 - Converted EPP 48cm Chuck Glider & Crash!



Here is a link to the Video:
https://www.youtube.com/watch?v=EgCZpo8RLG4

Well, I went out with (3) aircraft in this flight session and the Converted Chuck Glider is the only one I flew because the wind was at 6-9mph when I started and 8-11mph by the time I finished.
I flew only the Chuck Glider because the EPP Foam is so durable as you will soon see and I have (2) more of these airframes ;-)
Let's get it into the Stiff Air!

Here is a link to the Chuck Glider Conversion Playlist:

https://www.youtube.com/playlist?lis...OknBblSrwuqP2T


Here are links to all the components we used in this project:

48cm Big Size Hand Launch Throwing Aircraft Airplane Glider DIY Inertial Foam EPP
https://www.banggood.com/48cm-Big-Si...47791920140372

DYS BE1104 1104 Brushless Motor 5400KV 6500KV 7000KV 2-3S for 100 120 150 RC Drone FPV Racing Multi Rotor - 7000KV
https://www.banggood.com/DYS-BE1104-...47791920140372

2 Pairs Gemfan 3025 PC Propeller CW/CCW For 1104 Motor 120 150 160 RC Drone FPV Racing Multi Rotor
https://www.banggood.com/2-Pairs-Gem...47791920140372

2.4G 4CH Micro Low Voltage DSM2 DSMX Compatible Receiver Built-in Brushed ESC
https://www.banggood.com/2_4G-4CH-Mi...47791920140372

EMAX Babyhawk 85mm FPV Racing Drone Spare Part 2S 7.4V 300mAh 35c Lipo
https://www.banggood.com/EMAX-Babyha...47791920140372

HobbyKing™ HK-5320S Ultra-Micro Digital Servo 0.075kg / 0.09sec / 1.7g
https://hobbyking.com/en_us/hk-5320-...asc=5357157305

Turnigy MultiStar Race Spec 7A BLHeli-S ESC 1~2s (Opto)
https://hobbyking.com/en_us/blheli-s...asc=7727242802

Pololu Adjustable Step-Up/Step-Down Voltage Regulator S7V8A
https://www.pololu.com/product/2118

Turbowing 5.8G 48CH 25mw Transmitter 700TVL 120 Degree Wide Angle Wireless FPV Camera NTSC - Copper Antenna
https://www.banggood.com/5_8G-48CH-2...47791920140372


See you in the Air!

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

See Us On Youtube | Patreon | RCGroups | Facebook

https://www.youtube.com/c/GroundControlRC
https://www.patreon.com/groundcontrolrc
https://www.rcgroups.com/forums/member.php?u=754189
https://www.facebook.com/pg/Ground-C...3132721/posts/
Posted by WikDrone | Mar 18, 2019 @ 07:38 PM | 1,443 Views
Hi, we are a group of university students (IT - computer engineering) who are working on a collaboration project called WikDrone https://www.wikdrone.com

It is a social network dedicated to the drones world. The idea is to create a database so that we can all freely value our drones and accessories and share our experience with the community.

If you like the project and want to lend a hand, it would be very helpful. What do you think of the idea? Do you have any suggestions? Something to change, add or improve? Do you like the initiative? Thank you very much for your help, we have worked hard on it, we hope you like it.

Regards,

PD: We are improving the mobile adaptation (mobile application), meanwhile, if you can access WikDrone with a PC, tablet or large screen device, the experience will be much better....Continue Reading
Posted by WikDrone | Mar 18, 2019 @ 07:33 PM | 1,416 Views
We are working on a university project focused on the drone world (WikDrone Project), so here we are, looking forward to getting some ideas from the group! Happy to be here.
Posted by PeterVRC | Mar 18, 2019 @ 06:34 PM | 2,280 Views
I decided to write up a PROCESS for Landing RC Model Aircraft more successfully.....
Mind you, variables in flight still make the task X amount more difficult - those can be wind/environment AND pilot SKILL (!!) plus visual errors which can create bad AIMS (as your data input is then X amount incorrect)....... but you want the SIMPLEST, repeatable, reliable, process possible!!

So this outline below is what I do to make it all as easy as possible......
Posted by rinoki71 | Mar 18, 2019 @ 06:09 PM | 2,025 Views
My flight review of the Hubsan H123D X4 Jet.

Hubsan H123D X4 Jet Flight Review (10 min 16 sec)

Posted by Keith Kindrick | Mar 18, 2019 @ 11:47 AM | 2,198 Views
I was sending messages back and forth this morning to Fred Weaver about everything sailplanes. He tells me he has a friend up from Sunnyvale who is out watching the Wild Turkeys walk through the property. they make this walk two to three times a day. Fortunately his friend capture this video. AMAZING


Fred’s Turkey Farm (1 min 9 sec)

Posted by montis | Mar 18, 2019 @ 11:16 AM | 4,797 Views
Eachine TX1200 VTX

Eachine TX1200 is 30x30mm stack mountable, long range VTX. It has 5 bands, 40 total channels (including illegal channels 4, 7 and 8 on the band E, according to the FCC regulations ), 4 power levels 25/200/600/1000mW (actual power output measured below) and PitMode, SmartAudio for controlling the VTX settings remotely via Betaflight OSD, microphone on board for broadcasting audio together with video feed. Eachine TX1200 VTX has MMCX antenna connector which provides more solid and tight joint than small IPEX connector.



Package contents

Eachine TX1200 package comes with a VTX, MMCX linear dipole antenna, MMCX to RP-SMA or SMA adapter pigtail (can be selected on purchase), cable with 6pin 1.25mm JST-GH plug and a small instructions leaflet.



Instructions leaflet.
...Continue Reading
Posted by basslord1124 | Mar 18, 2019 @ 08:20 AM | 2,591 Views
As part of a build challenge that I participated in on the FT forums, I picked out the FT Bloody Baron as one of my next builds. So here is the intro video to the FT Bloody Baron. The Bloody Baron is a Dan Sponholz design which Dan is one of the main guys who helps with Flitetest downloadable plans. The plane looks like a lot of fun and gets all sorts of praises...so can't wait to try it out!

FT Bloody Baron intro... Flitetest Forum Build-ruary Challenge (2 min 58 sec)

Posted by JohnVH | Mar 18, 2019 @ 12:59 AM | 1,999 Views
Posted by Bill M - RC | Mar 17, 2019 @ 09:07 PM | 1,853 Views
IS PINK FOR PUSSIES? – Coming soon

Is Pink for Pussies? - coming soon (0 min 56 sec)





Hint: http://bit.ly/2TEIxBh