Vulture 2 spaceplane autopilot brain surgery a total success

This post has been deleted by its author
Friday 15th August 2014 10:22 GMT SRMoll

What happens?...

What happens if the rocket happens to fire when the servos have been 'wiggled' to one end of full travel?

Or is the firing sequence held until the control surfaces are in a trimmed position?

Or is there enough time for the detection of acceleration and for the control surfaces to be neutralised before they become aerodynamically effective?

1 0 Reply
1. Friday 15th August 2014 10:29 GMT Lester Haines
  
  Re: What happens?...
  
  The detection is in milliseconds, and the servos should be in the neutral position almost immediately. The wiggle isn't to full defection, although we haven't decided on how much they should travel.
  
  0 0 Reply
  1. Friday 15th August 2014 10:51 GMT YetAnotherPasswordToRemeber
    
    Re: What happens?...
    
    The spec of the canard servos (Futaba S3016) has them taking 0.2 seconds for a 60 degree sweep at 6 volts, which is quite slow, so I'd not make the wiggle too much otherwise the plucky Playmonaut could be in for a bit of a wild all be it short ride!
    
    0 0 Reply
2. Friday 15th August 2014 11:07 GMT John Sager
  
  Re: What happens?...
  
  Up at the launch altitude, I would think any control surface deflection would have little to no impact until the craft reaches quite a high velocity. In fact, I wonder if you'll have any real control authority until it descends a fair way.
  
  0 0 Reply
  1. Monday 18th August 2014 05:45 GMT Lester Haines
    
    Re: Re: What happens?...
    
    "Quite a high velocity" is exactly what we have in mind.
    
    0 0 Reply
Friday 15th August 2014 10:33 GMT ISYS

Battery life

Just a thought - how long is the ascent? Will the batteries have enough life to wiggle the servos all the way up and then all the way back down again?

Anyway it is Friday so have beer.

0 0 Reply
1. Friday 15th August 2014 10:40 GMT Lester Haines
  
  Re: Battery life
  
  Yup, we've got enough juice for the whole mission. The servos only wiggle a bit and at predetermined intervals.
  
  0 0 Reply
Friday 15th August 2014 10:47 GMT joeW

I know you haven't requested an acronym for the wooden testing rig, but in the spirit of Lindsay-related terms thus far...

Automobile Roof Rack Enhanced Simulation Tester

5 0 Reply
1. Monday 18th August 2014 03:42 GMT Martin Budden
  
  In that case we'll also need a bacronym for the van itself, and in honour of a certain starlet's ankle bracelet I suggest:
  
  SCRAM - Speedy Carrier for Relocation of Aircraft Mission.
  
  1 0 Reply
Friday 15th August 2014 11:38 GMT plrndl

Nice shed.

1 0 Reply
Friday 15th August 2014 12:08 GMT beast666

Have you calculated at what speed LOHAN, ARREST and your van will lift-off when travelling along? You need to be careful!

1 1 Reply
Friday 15th August 2014 13:38 GMT Lyndon Hills 1

Autotune

Music business rip-off, I prefer the latin theme. I think i'd have made it Autopimp, which is kinda oxymoronic.

0 0 Reply
Friday 15th August 2014 14:50 GMT Anakin

I wish you luck

It seems you have everything under controll now.

I'll drink a pint to night with you in my mind.

ツ

0 0 Reply
Friday 15th August 2014 15:38 GMT imanidiot

For once

I have nothing to complain about. Have a pint!

0 0 Reply
Friday 15th August 2014 19:58 GMT NoneSuch

I reviewed your source code.

300ms after the final MAV_CMD_NAV_LOITER_DESCEND there is a MAV_CMD_NAV_ORDER_CELEBRATORY_PINT=0

It should be a 1. :)

0 0 Reply
Saturday 16th August 2014 05:19 GMT A J Stiles

Andrew Tridgell and Skype ?!

I hope this particular combination bears fruit.

0 0 Reply