Gender
Male
About
Location
El Segundo, CA
Please tell us a bit about your UAV interest
fixed wing & quad UAV's
Hometown:
El Segundo
Activity Feed
Completed a successful "Auto Mode" test today using a simple rectangular circuit. From the "CTUN" graph you can see the roll and pitch response matches the demand. The aircraft flew stable and as expected, I also repeated this test using 2…
"Thanks for the inputs!! I have received several great tips from other users as well, again thanks for the details of your experience!
Questions:
What flap setting for takeoff?
What is your airframe weight at takeoff?
Mine turned out to be 6lbs…"
Questions:
What flap setting for takeoff?
What is your airframe weight at takeoff?
Mine turned out to be 6lbs…"
I finally completed "AUTOTUNE" and "AUTOTRIM" activities on my Ranger, after fixing a self-induced configuration mistake. Once "AUTOTUNE" was completed, FBWA mode flights were stable and responsive, ready to test an "AUTO" mode mission next. Once…
"Takeoff weight of my Ranger EX 757-3 = 2700g
Original Motor 3S battery: 20A full throttle 950g static thrust (10X5 prop)
E-flite Motor 3S battery: 22A full throttle 1325g static thrust (10X7 prop)
E-flite Motor 4S battery: 33A full throttle 2150g…"
Original Motor 3S battery: 20A full throttle 950g static thrust (10X5 prop)
E-flite Motor 3S battery: 22A full throttle 1325g static thrust (10X7 prop)
E-flite Motor 4S battery: 33A full throttle 2150g…"
"I did both, I changed the motor first (E-flite Power 15) and flew with a 3S power pack, the performance was better but not great. Then I changed from 3S 5100mah to 4S 5500mah and the performance is good, lots of power to climb and at 8-10A cruise I…"
"I just posted and update from my 3rd flight (with video clip of takeoff/landing), switching to a 4S power pack with the new motor have solved the underpowered problem!"
Finally had the time for the next flight. I increased the Roll and Pitch gain settings as the first two flights were quite sluggish to control inputs. I was hoping to complete the "Manual" mode trim setup this flight but I continue to have too…
"Thanks for the input Ben. After much searching, and some simulation I am switching to 4S batteries. A static thrust test using 3s batteries and various propeller pitches produced results in the 1375g range for a 2700g aircraft. The 4S batteries…"
"Ben, besides the "stable mode" takeoff attempt with the 75% throttle limit, do you usually use one of the stability modes for takeoff? eg FBWA, FBWB, STABILIZE ... "
"I was finally able to complete the 2nd flight of my Ranger EX 757-3. My expectations were high, the results were less than impressive. After installation of a 450W motor, I expected to the current in the 40A range (Burst) for takeoff, followed by…"
"Sorry to hear your flight ended abruptly. Hopefully the damage is repairable? The stock motor is underpowered for my 6 lbs takeoff weight, I have ordered a 500w motor to replace the stock 300w.
Once the airframe made a cruising altitude it flew…"
Once the airframe made a cruising altitude it flew…"
"Forward equipment bay:
Pixhawk - on vibration mount
3DR telemetry transmitter starboard side
Pixhawk power module port side
2 x 5100mah 3S 8C LiPo battery packs
Digital L2C airspeed sensor
FrSky RC receiver/telemetry transceiver
Not visible:…"
Pixhawk - on vibration mount
3DR telemetry transmitter starboard side
Pixhawk power module port side
2 x 5100mah 3S 8C LiPo battery packs
Digital L2C airspeed sensor
FrSky RC receiver/telemetry transceiver
Not visible:…"
I completed the maiden flight of my Ranger EX 757-3 today, with mixed results. The flying weight today was 6lbs, using a standard rule of thumb, the power requirements would be 450 - 600W. The supplied 3715/1000KV outrunner brushless motor only…
"Kieran - an unfortunate delay postponed my maiden flight, as a result the LIDAR-lite V3 I ordered has arrived and is installed. I do hope to complete the maiden flight this week and work out the initial tuning. Ultimately a successful auto…"
