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Hey Guys, 

I have just purchased and build my T-28 Trojan. 

Looking for a place to fly and join some people.

Keen to come past tomorrow and check it out.

Thanks !!!

Josh.

My Betafpv 2.4ghz ELRS Micro module 1W has worked fine for 4 months in a QX7 (ACCST) after being initially flashed by the wifi method. The Qx7 works with 4 elrs models and 5 ACCST models, and when you select the model it automatically selects CRSF (external module) or XJT ACCST (internal module) as required.

However the elrs module stopped working after I downloaded Uni ACCST and tried flashing several rxs (unfortunately I did not remove the module). Subsequently the elrs models could still bind and telemetry worked, but the servos did not move. 

I decided to try re-flashing the elrs module, and I used
BETAFPV_2400_TX_MICRO_1000mw-3.0.1.bin first try which was the one I was using for 4 months, then BETAFPV_2400_TX_MICRO_1000mw-3.2.1.bin in subsequent attempts.

Using the wi-fi method, with a 2S lipo to power the module which enters wi-fi mode after 20 sec, neither of the above firmware will flash. 

I then tried the
UART method:
On my mac I get this message in the log:
Looking for upload port...
Auto-detected: /dev/cu.Bluetooth-Incoming-Port
Uploading .pio/build/BETAFPV_2400_TX_MICRO_1000mw_via_UART/firmware.bin
esptool.py v4.2.1
Serial port /dev/cu.Bluetooth-Incoming-Port
Connecting......................................
A fatal error occurred: Failed to connect to ESP32: No serial data received.

On a pc the error is "looking for upload port...error: please specify upload port for environment"


I have a Betafpv Expresslrs Recovery Dongle, but it appears to only connect to rxs, and not modules

I would appreciate any advice...

This firmware makes old frsky accst rxs the apparent equal of many expensive newer rxs. I have followed this topic on the Aloft website
https://forum.alofthobbies.com/index.php...-d16.3270/

If you follow the various links from the above link there is the full story of uni available.

I plan to give it a go with a Frsky RX6R rx, which has not been used for a few years. This rx has 2 antennas.  I may have flashed it with ACCESS at some time but it was originally ACCST.
From the Aloft link, I downloaded the recommended uni firmware for this rx:  RX4R_75sm.frk  
(the file name is not a typo, I checked).

I will load this file on my old Qx7 ACCST tx, by taking out its SD card and placing it in my mac, and copying RX4R_75sm.frk to the firmware folder. Then I can attach the RX6R rx to the Qx7 with a cable to its smartport (let me know if anyone wants details on this step) and flash it.

My RM T12 tx has a multi internal module that includes Frsky, (the elrs is the external module) so I will select frsky and then try to bind the rx.

Comments on this plan are welcome. I am unsure if the edgetx software (v 2.8) on the T12 will require  a script. Does anyone know?

KMart sell a large foam glider, and the same product is sold in Europe via Lidl. There's a huge community around converting them to RC, whether as RC gliders, powered aircraft or even ducted fan swept wing jets!

My son and I picked one up from KMart last week and set about converting it. I bought tiny little 4.5g servos, a 2306 motor and I've ordered a 20A ESC (motor draws 10A with the 5x4.3x3 prop) While I wait for the 20A ESC to arrive I've used my 35A ESC out of my Bix3.



I went to Jaycar and bought some nichrome wire, and I made up 2 hot wire foam cutters. a bow shaped one for making big straight cuts and a scoop shaped one for scalloping out the inside of the nose of the glider,a nd for making tube shaped grooves where reinforcing rod is to be added.



I used my bench power supply to send the appropriate current through them.

I then cut the nose off the glider using the bow cutter, and traced out the cut shape onto plywood to serve as a template. I cut out the plywood, drilled the necessary holes, and then screwed it to some large standoffs, which I hot-glued into the plane nose. I can now remove this motor mount when desired by unscrewing it from the standoffs.





I then scooped out the foam from the nose, and then inserted my battery, receiver and speed controller.



I installed 1 servo in each wing, and cut out ailerons (the plane has moulded in lines at this point, more where you'd expect flaps to be, but they still give great control authority). I also cut out the back of the horizontal tail surface to make an elevator and used a servo in the vertical stabiliser to control it. I cut a chamfer on the bottom front of the control surfaces and used packing tape on the topside as a hinge. I installed the servos on top of the wing to keep them out of harm's way when belly landing.

I installed a 5mm carbon tube in the wing and fuselage, and a 4mm carbon rod in the horizontal stabiliser to stiffen it all, and it was 'ready to fly'



I set the CG to the same as it was out of the box as a chuck glider (50mm from the leading edge of the wing) but I found that was incredibly pitch sensitive (probably because it's design to do easy loops when chucked by a kid), so I moved it forward about 10mm by repositioning the battery. It flies much more balanced now.

I found that at speed the nose and tail would flutter a lot, leading to control issues and a rapid unscheduled dissassembly. 10 minutes with the hot glue gun and it was back together, and I added more 5mm carbon tube from the underside of the fuselage to the underside of the tail, and I glued 2 tongue depressors to the sides of the 'cockpit' to stiffen that too. It flies beautifully now, and it can cruise around for about 8 to 10 minutes on half throttle with the 850mAh 3s battery I'm using.

I've learned some lessons for if (when) I make another one. I'll put the servos on the underside of the wing, and scoop out far less foam from the nose.

All in all, a fun little weekend project with my kids, and now we have a very robust, easy to repair plane for quick lunchtime flights.

It's in a development branch of the firmware at the moment, but it should be pulled in to the main branch soon.

I have no need for it yet; all my stuff is PWM only, but it's a pretty cool addition.

1. SST Eagle Freya 90 size electric helicopter. Come with:
        a. 690 SAB Blades
        b. Tail Blades
        c. Scorpion motor, HK-4530-500KV (Limited Edition)
Sale price: AU$800

2. Goblin 500 Sports edition. Come with:
        a. SAB Blades
        b. Tail Blades
        c. QT4120-1200 QUANTUM Outrunner Brushless Motor
Sale price: AU$400
3. Goblin 570 is already sold
Prices are almost give away. Negotiable a little bit but not much as the prices are already very low. Reason for selling is I am getting out in flying helicopters.

Posted in FB Market as well
https://www.facebook.com/marketplace/ite...837897195/

Electric predator B UAV

Price: $50
Contact Me At: sydgez@hotmail.com

FrSky Q X7 Transmitter
2000mah LiFePo Battery
FrSky Carry Case
Stick Protectors
RangeX IRX4 Plus 2.4G 4-In-1 TX Module

Price: $100
Contact me at: sydgez@hotmail.com

Tiny Wing X450

Price: $100
Contact Me At: sydgez@hotmail.com

Turnigy Evolution FS-MT6 Transmitter (Mode 2)
Turnigy TGY-IA6C Reciever

Material: EPP
Wingspan: 431mm
Length: 277mm
Weight: 39.3g
Package Weight: 612g
Package Size: 470*290*60mm
Battery Position Size: 78*18*16mm
Motor: XT1105-5000KV

Flight Controller: FC01
Propeller: 3.8*3E (Plus spares)
ESC: Emax BLHeli 12Amp BEC

Recommended Battery: 7.4V 450mAh 80C LiPo

Features:
- EPP material, lightweight and durable.
- Auto throw fly.
- Self level, fixed altitude flight.
- Mini size, easy to carry.


Transmitter

[b]Features:[/b]
• AFHDS 2A RF protocol
• Compatible with the iA6, iA6B, iA6C, iA10B range of receivers
• 8 channel 2.4ghz radio with telemetry capability
• i10 style customized Gimbals with dual ball bearing supports
• Illuminated gimbals (adjustable) with stiffer springs
• Soft rubber grips 
• Easy-to-use touchscreen
• SBUS/IBUS and CPPM/PWM support
• 20 Model Memory
• Backlit LCD Screen
• 4 Stick Mode Selection
• USB port for Flight Simulators
• USB charging
• Lanyard attachment point
• Haptic Feedback and louder buzzer
• Range test
 
[b]Transmitter Specs:[/b]
Channels: 8
Model type: Fixed wing/ Helicopter / Multi-rotor
RF range: 2.408~2.475 GHz
Bandwidth: 500KHz
RF channel: 135
Protocol: AFHDS 2A
Modulation type: GFSK
Stick resolution: 4096
Low voltage alarm: Yes (<3.7V)
USB Port: Micro USB
Power input: 4.2V
Size: 190 x 170 x 85mm
Weight: 343g
Certificate: CE, FCC ID:N4ZMT6B00, RCM

Eachine Micro Skyhunter. Ready to fly

Price: $100

Contact me at: sydgez@hotmail.com

Includes:
- The Plane
- Emax BL2205/22 Motor
- KingKong 2204 2300KV Motor (spare)
- 5 x Props
- 1 x Spare Canopy
- 1 x Turnigy 30Amp BEC
- 1 x FrSky X4R Receiver