I'm interested in doing digital photography from an RC model airplane, and have a couple of questions that I can't find answers for on the web after a few days of searching:
- How much surplus lift capacity do typical .40/.60 trainers have? Is there a way to calculate this from plane specs? The camera I have in mind, Pentax Optio-S, is only about 3.5 oz, plus about 1.3 oz for one servo (miniumum control: shutter release). If I hung this right at the CG, would the plane get off the ground?
- I can't quite figure how the "extra" channels on 6-9 channel radios are translated into knobs/switches. It _appears_ that, for most radios, channel 5 is an on/off switch, and channel 6 is a proportional knob. Right? But what about channels 7-9? Are these _all_ on/off switches, or are some of them on/off/on (-100,0,+100) switches? (Think of the other possible camera controls: Tilt angle from horizon (proportional); zoom (wide, off, tele), power (press on / press off), etc.) What do I look for in transmitter specs that will reveal the kind of switches/knobs used to control these other channels?
If convenient, I'd appreciate a reply to my email: snipped-for-privacy@tufox.com
Thanks!
Jim.