====== Lifting Body ======

===== Plans =====
 
Short term (next 2 - 3 weeks) aim - develop lifting body system - aim to assemble next weekend - launch following week:-
 
Steve to:
  * Send TX (and lead + plug) //done//
  * Send Servo Driver //done//
  * Make Servo Current sensor and power regulator + Li-Ion batteries.
  * Finish lifting body model, Drop test and determine glide ratio - produce scaled version for predicted weight
  * Work out antenna system (copper strip on inside surface of lifting body?)
  * Make 3.3V FET pyro-drivers //done//
 
 
Ed to:
  * Provide deatils of  low voltage (3V) power FETS (for cutdown/chute deployment) - //done. Nice one ed! I'll pop down to RAPID Monday/Tuesday//
 
James & Ed to
  * Work of steering software //begun - gps parser complete - now doing maths//
  * Get GPS //on order//
 
James to:
  * Aquire Nokia mobile phone //done - jcoxon//


===== Components =====
  * Gumstix Connex 400xm
  * Audiostix 2 Daughter Board (+ gumstix + gps = 30g)
  * EM-406A GPS
  * Servo driver (20g)
  * Servo (25g)
  * 2 x Cutdown circuits (20g each)
  * Radio transmitter (25g)
  * Lifting body
  * Piston released parachute

Total Weight = 150g (gumstix,board,gps,servo,servo driver,2x cutdown circuits, radio transmitter)


===== Construction =====
==== jcoxon ====

  * Wire up 
    * GPS unit -done
    * Servo driver
    * Radio
    * Cutdown circuits
  * Complete Software

==== rocketboy ====
  * Design Lifting Body
  * Construct

==== edmoore ====
  * Finish maths software




===== Code =====

  * [[projects:parafoil:liftingbody:code:gpsparser.c|gpsparser.c]] - C program that opens the serial port and receives NMEA strings, searches each string for either $GPGGA or $GPVTG and then splits these strings into float variables converting long and lat into decimal.
  * [[projects:parafoil:liftingbody:code:servo2.c|servo2.c]]
  * [[projects:parafoil:liftingbody:code:navsoft.c|navsoft.c]] - Combining GPS parser with Servo 2 and some calculations to work out distances and bearings - also shifts the servo accordingly. Jcoxon version of adjustment - will update with more advanced edmoore version.
  * [[projects:parafoil:liftingbody:code:navsoft2.c|navsoft2.c]]