= Misc Airframe Notes =

[http://www.motocalc.com MotoCalc] is an Electric Flight Performance Prediction program for Windows and is available for a 30 day free trial.  MotoCalc has an internal database of thousands of motors/props/etc. and can make power/flight predictions based on data input.

[http://brantuas.com/ezcalc/dma1.asp Electric Motor Calculator] by Diversity Model Aircraft is a free online tool for matching props to motors to batteries.

[http://www.gobrushless.com/testing/thrust_calculator.php?prop=45&rb1=1&Value=9720&submit=Calculate+Now Propeller Thrust Calculator] is a free online calculator to give thrust from given propeller and RPM or vice versa.

[http://www.hanleyinnovations.com/multisurface MultiSurface Aerodynamics] is an airfoil and wing analysis software package. The software predicts lift and drag for multiple interacting wings.

== Battery Specs ==

'''Nickel Cadmium (NiCd)'''

* Energy/Weight: 40-60 Wh/kg
* Nominal Cell Voltage: 1.2V
* Fully Charged Cell Voltage: 1.2V
* Depleted Cell Voltage: 0.8-1.0V

'''Nickel Metal Hydride (NiMh)'''

* Energy/Weight: 30-80 Wh/kg
* Nominal Cell Voltage: 1.2V
* Fully Charged Cell Voltage: 1.35-1.4 V (unloaded)
* Depleted Cell Voltage: 1.0V

'''Lithium-Ion'''

* Energy/weight: 160 Wh/kg
* Nominal Cell Voltage: 3.6 / 3.7 V
* Fully Charged Cell Voltage: 4.2V
* Lowest Cell Discharge Voltage Before Damage: 2.4v to 3.0v

'''Lithium-Ion Polymer (LiPo)'''

* Energy/weight: 130-200 Wh/kg
* Nominal Cell Voltage: 3.7V
* Fully Charged Cell Voltage: 4.23V
* Lowest Cell Discharge Voltage Before Damage: 3.0V

'''Typical Power Requirements'''

* 70W/kg (35W/lb) for sedate flying from hand launch
* 100W/kg (50W/lb) for ground take off
* 150W/kg (75W/lb) for performance / aerobatics


= Mass Figures =

Provided below are some weights to aid in estimating an all up weight for your uav

* Tiny13 1.1 Weight: 25g (0.88oz)
* IR Sensor Head: 5g (0.18oz)
* XBee Pro: 4g (0.14oz)
* Hitec HS-55 Servo: 8g (0.28)
* Brushless Outrunner 250W: ~90g (~3oz)
* FunJet assembled, no hardware: 165g (5.82oz)
* FMA Encore 5ch Receiver: 11g (0.40oz)
* Castle Creations Phoenix 35: 24.5g (0.9oz)