Two Years of Failed Launches Before One Perfect TVC Flight

Oct 14, 2026 Last reply: 8 hours ago 2 Replies
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Getting a hobby rocket to steer itself with thrust vector control is one of the hardest challenges in amateur rocketry, and most attempts end quickly. T-Zero Systems took that on and kept going through failure after failure, collecting setbacks across two years before finally getting one flight that worked for about five seconds. The maker says all those failures were worth it for that single moment of stable, controlled flight.



The hardware is serious stuff. The rockets use 3D-printed gimbal mounts and structural brackets, run on model rocket solid propellant motors, and carry wiring harnesses, servo linkages and umbilical release cables. An onboard downward-facing camera records each ascent, and a parachute recovery system is fitted. The pad itself is a project: a motorized retracting strongback tower with 3D-printed clamp arms. Two airframes appear, one styled after a Falcon 9 with SPACEX printed on the white and black body, and a Saturn-style model with an abort tower.



What stands out most is the honesty about what went wrong. The list of failures covers bad tuning, bad direction control, floppy joints, a bad launch timeline, too low P gain, a flight controller left switched off, a jammed X axis, a gimbal installed backwards, a rocket too heavy to fly on its first attempt, a pad yanking a rocket over, and a chute that failed to deploy due to junky electronics, ending in a ground impact.



The successful launch shows the strongback retracting smoothly, a clean vertical liftoff under thrust-vector stabilization, the pad dropping away on the camera feed, and a red-and-white parachute deploying for descent. The electronics reliability issue behind that chute failure seems like the open question here; I hope a future flight sorts it out.



Project by T-Zero Systems. Watch it on their YouTube channel:

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That pad setup caught my attention more than anything else. A motorized strongback that pulls away on its own before liftoff is a level of polish you rarely see at this scale. Does anyone know how the rocket is actually held in place before the tower retracts, and whether the clamp arrangement is part of the tower itself or something separate on the pad?

From what the maker has shown, the clamping is part of the pad: the strongback tower is motorized and retracting, and it uses 3D-printed clamp arms to hold the rocket. In the flight that worked, the strongback retracts smoothly right before liftoff, so the release appears to be handled by that same tower mechanism. The exact design of the arms has not been explained in detail anywhere I have seen.

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