Quote:
Originally Posted by Old Tele man
Parachute airdrop-delivery systems use GPS steering, but cannot provide 100% control (no thrust or propulsion), so 100% landing accuracy is NOT fully achievable. They were tested at YPG back in the 1980's with varable results.
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Was thinking of deceleration drogues at mid-low range descent elevations, then totally released, before using the low level but more controllable retro engines.
Not exactly but analogous, kinda dramatic.
..or deployable control fins?