Level 1 Certification

Taken from the official Tripoli Rocketry Association website.

Level 1 certification is open to all students and senior members 18 years and older. The candidate must build, launch and safely recover a rocket using a certified H or I motor in the H to I impulse range. In addition, high Power Level 1 Certification allows a member to purchase and use H, and I impulse class commercial manufactured hobby motors.

Level 1 Certification Procedure

Level 1 Certification allows Tripoli members to fly High-Power Rockets with a total installed impulse up to 640 Newton-seconds.

A certification authority (Prefect, TAP, or Tripoli Director) has a responsibility to perform the following steps:

1
Review of the predicted flight characteristics to ensure they comply with the TUSC and FAR 101.25 as well as any special conditions for the launch site.
2
Inspection of the prepared rocket motor to ensure it complies with the requirements.
3
Pre-flight inspection of the rocket with motor to ensure it complies with Recovery and Airframe rules.
4
Observation of the certification flight in accordance with the TRA rules.
5
Inspection of the recovered rocket in accordance with the Post-Flight Inspection rules.
Level 1 Certification Pin

After accomplishing the steps above, the certifying authority shall determine whether the candidate’s rocket and flight constituted a successful certification.

Following a successful certification, the certification authority should sign the Universal Certification Form in the appropriate place and hand it to the candidate.

Airframe

The rocket must be built by the flyer. The rocket shall display on the exterior identifying the calculated center of pressure. The rocket must be of "conventional rocket design." "Odd Rockets," including flying pyramids, saucers, and flying spools, will not be allowed for any certification flight. The rocket may be either a kit or scratch built. Scratch-built rockets may contain commercially built components. The Certification Authority has the authority to refuse the use of premanufactured assemblies or rockets that do not reflect a candidate’s ability to build a rocket. Although 3D printed fin cans are allowed, rockets that are entirely 3D printed are not.

Recovery

Parachute recovery is required. Non-parachute recovery methods, such as tumble, helicopter, gliding, or others, are not permitted for certification flights. If the rocket uses dual deployment, the first recovery event is not required to use a parachute. It may be either drogue-less or streamer. The main event shall use a parachute to decelerate the rocket to no more than the landing velocity allowed by the Tripoli Unified Safety Code.

Motor

The certification flight must be powered by a single certified H or I motor (total tested impulse between 160.01 and 640.00 n-sec). Staged or clustered rockets may not be used for certification flights. The certifying authority is not required to witness the candidate build or prepare the motor but will make themselves available to answer questions about building or preparing the motor.

Electronics

Electronics are neither required nor prohibited for level 1 certification flights.

Certification Flight

A Level 1 Certification flight may occur at any insured launch. The certifying authority (i.e., Prefect, TRA Director, or TAP Member) must be present and witness the certification flight. The certifying authority must observe enough of the flight to know that the rocket ascended in a stable manner and descended in a safe manner controlled by the recovery system. The certifying authority is not required to see the entire flight.

Post-Flight Inspection

The rocket must be presented to the certifying authority for inspection as recovered (all parts included). If the rocket cannot be recovered but can be safely visually inspected in place (power lines, tree, etc.), this is acceptable. The certifying authority shall inspect the rocket for excessive damage. Excessive damage shall be considered damage to the point that if the flyer were handed another motor, the rocket could not be placed on the pad and flown again safely. Damage caused by wind dragging after a safe landing will not cause a disqualification.

Non-Certification

Any of the following will result in the failure of a certification flight:

  • Motor Cato
  • Excessive Damage during flight or recovery (Excessive damage is defined as damage to the rocket which would prevent flying it again safely. A zipper of a quarter caliber or less is acceptable. Cosmetic damage to fillets is acceptable, but a fin tab that is no longer securely bonded to either the motor mount tube or body tube is not acceptable.)
  • Failed recovery system deployment, including failure to eject deployment system, tangled recovery system, failure of chute release to release, or other failure that allows the rocket to descend faster than designed even if there is no damage to the rocket.
  • Rocket exceeding the waivered altitude, the expected altitude as limited by FAR 101.25(G), or drifting outside the specified launch range.
  • Components coming down that are not attached to the recovery system.
  • Landing in excess of 35 feet per second.
  • Any other violation of the Tripoli Unified Safety Code associated with this particular flight.