At some point in the last decade I'm certain I read that active guidance was disallowed for hobby/high-power rocketry. I cannot find that/those rule(s) now, at least for Tripoli, so perhaps the prohibition has been lifted? I just skimmed my Tripoli rules from 2001 and could only find in the Prohibited Activities section: "The use of a high power rocket or high power rocket motor as a weapon against a target."
In any event I've never understood why the rule [I thought I read] seemed to categorically disallow active guidance. I realize such steering could be used by malefactors for bad things but Alyssa's 2D active guidance is clearly intended to improve the safety of the flight. I hope her work and excellent presentation open the door to additional research to actively maintain flight perpendicular to Earth. Bonus: This Guardian controller from Eagle Tree Systems is only $75. One needs to buy a slew of other hardware and electronics to enable such a system but that seems cheap for such a controller.
After watching Alyssa's presentation several things occurred to me:
- When set to 3D mode and using one servo per fin one could also actively counter roll in addition to pitch and yaw.
- It might prove worthwhile to enable some sort of inhibition system to prevent post-apogee servo thrash unless...
- Leaving it active could reduce drift by actively steering the rocket against the wind under parachute. I think one might need to invert the servo responses post-apogee, however, depending on the fin/gimbal/recovery configuration.
Rawkit syence is good eats!
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