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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


Spec.
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 


Nov
16

:) IT FLY’S :) Maiden flight of Yellow Plane Hextronic DT850 Turnigy 2200mAh Xbee Arduino Controller

2200mah, ardruino, fpv plane, maiden flight, XBee Pro 60mW U.FL Connection - Series 1 Commenti disabilitati su :) IT FLY’S :) Maiden flight of Yellow Plane Hextronic DT850 Turnigy 2200mAh Xbee Arduino Controller 

Currently revising the design to reduce weight and have bigger wing chord base on advise from DIYdrones with slightly shorter wings. 

 AUW 1521 Grams Wing loading 14.83 oz/ft²  power to weight 270 Watts per Kg should perform much better than Yellow plane one. 

I'm changing from the D4023-850 Out Runner Motor to a higher kv Turnigy L3010C-1300kv Tests show significant improvement in static thrust 1700 Grams. I also have a Turnigy D3542/4 1450KV in reserve If I need more grunt, got 2 Kgs from this wee beasty on the test rig. 

I ran the  D4023-850 on a Turnigy dlux 30A SBEC but the Turnigy L3010C-1300kv needs more Amps so I have a H-KING 50A Fixed Wing ESC which seems good at full load only gets warm.

Decided on HobbyKing 929MG Metal Gear Servo's which seem like nice devices, I have trashed most of the cheapies I had in various mishaps.  

The Murata Piezo Gyro's are mounted on a dead HobbyKing Multi-Rotor Control Board I acquire the analogue signals from the gyro's with the Arduino Nano and the calculations for the control surface correction are done in there and sent to the servos.

Once the plane is proven I have a 1/3-inch SONY CCD Video Camera (PAL) and 5.8g 200mw FPV Wireless AV Tx & Rx Set for the FPV setup I tested the TX & RX with another camera and they seem to perform more than aquatically. 

Experimenting with material options for the wings looking for a target weight of 400 grams or less for both wings. Please see calculations
Also I have added gyro stabilization which looks good on ground tests.This video on flitetest.com shows a stabilizer in flight.

If any one out there has any helpful advise please feel free to comment/contact? 





I was so pleased to see her fly in the hands of an experienced pilot


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 







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