Posts | Comments

Planet Arduino

Archive for the ‘throttle’ Category

Found out why the maiden flight ended with Issac Newton attacking my plane. The pilot said it seemed to loose power as she turned into the wind, and he was flat out for whole flight due to the excessive weight of all that Corriboard, I have a lighter air frame in the works 1300 Grams wing loading 12.53 oz/ft², 250 Watts per Kilo Please see the spreadsheet. I think its highly likely she just ran out of juice?

This is why I suspect the battery state

Turnigy Accucel-6 50W 6A Balancer/Charger

Input Voltage: 11~17v
Circuit power: Max Charge: 50W / Max Discharge: 5W
Charge Current Range: .1~6.0A
Ni-MH/NiCd cells: 1~15
Li-ion/Poly cells: 1~6
Pb battery voltage: 2~20v

Some how or other my charger was set to a max CAPA of 200mAh so my batteries were never charged. My wife helpfully pointed out that I should have read the manual (Here is the manual) but that just isn't the bloke way, why do girls not get that?

Maiden flight of Yellow Plane flown by a local pilot Richard to avoid instant crash I would cause. A little tail heavy but flew pretty well on a gusty day, I'm told control was good. Ended in a crash but not too badly damaged, learned a lot. I'm just chuffed if flew looks pretty good on such a windy, which is pretty standard for the south island this time of year.

My scratch built FPV platform. Took around 30 hours to build mostly Corriboard with some ply, aluminium and carbon fiber spars. Total material cost around 50 US$. Got a DT700 (see tests data here) which hopefully will be an adequate power source. Its a modular design based around an armature, so wings and tail etc are bolted on and can be exchanged for testing parts and ideas. Have a pair of KM3 wings and the Corriboard ones shown below.

Please see the spread sheet here Yellow Plane Data 

More Links
The RX Build
Power Tests
More Test Data
Xbee's and Arduinos
Controller using Tiny CLR
Xbee Helpers

Based around a stiff wooden armature and two aluminium tail spars the wings are removable for transportation. According to my calculations the wing loading is 15.5 Oz/Ft² at a flight weight of 1700 Grams. A glass fiber nose has been molded and is curing now which is around 80 grams, which will contain the FPV gear and the main battery.

Home brew Arduino Xbee remote control 

  • Newsletter

    Sign up for the PlanetArduino Newsletter, which delivers the most popular articles via e-mail to your inbox every week. Just fill in the information below and submit.

  • Like Us on Facebook