TARC

The TARC rules for 2021-2022 have been announced (see www.rocketcontest.org). Major requirements include:

  • Rocket must carry two eggs, mounted sideways.
  • Rocket must carry a Perfectflite Pnut or Firefly altimeter.
  • Target altitude is 835 feet for qualification flights.  At finals, target altitudes will be 810 feet and 860 feet.
  • Target duration is 41-44 seconds for qualification flights.  At finals, target durations will be 40-43 seconds and 42-45 seconds.
  • Rocket length must be 650 mm (25.6”) or greater.
  • Rocket must have two body tube diameters, one for egg compartment and one for booster.
  • Rocket mass at liftoff (including motor) must be 650 grams (22.9 ounces) or less.
  • Motor maximum total impulse = 80 N-sec (F motor).

Safe operations are our top priority at DART launches. Requirements for flying TARC models at DART launches include:

  • Rail launch (6′ or longer) is required. 1/4″ launch rods (or similar) are not acceptable.
  • Positive motor retention is required. Taping motors or friction fit is not allowed. [Note: this is already a TARC requirement, and we will enforce this requirement.]
  • Minimum average thrust of motor = 30 N is required. Use of low thrust motors such as Estes F15 or AeroTech F20 is not permitted.
  • Minimum stability margin of 1.5 diameters required. Inadequate fin size can lead to dynamic stability problem that adversely affects trajectory and performance.
  • Simulation report (Rocksim, OpenRocket, or similar) shall be presented documenting mass, CG, CP, max altitude, and time to apogee (i.e., make sure motor has appropriate delay).
  • Fabric parachutes are required. Plastic “garbage bag” parachutes are not permitted.
  • Safety check – demonstrate motor retention, shock cord attachment/strength, etc.
  • Follow instructions from DART range personnel. Decisions by the DART Range Safety Officer are final.

Please contact DART for additional information regarding our support for TARC teams.

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