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=== Certification Tips === There are few things an individual can do to increase the likelihood of a successful L1 certification attempt: * '''Stick with single deployment (motor ejection)'''. Some kits come with an electronic bay and multiple recovery devices. It is best to avoid using these extra features for a certification attempt; added complexity increases the chance of failure. If a drogue chute fails to deploy, for example, the rocket may be traveling too fast by the time the main chute deploys to successfully decelerate before impact. * '''Use as low a power motor as possible'''. For a certification attempt, it is best to keep altitude and velocity as low as possible to allow for a smooth flight that puts the least structural stress possible on the rocket. * '''Run accurate simulations on OpenRocket or other simulator'''. Simulations help provide approximate expectations for the flight of a rocket based on its shape and weight. This can also aid in choosing the appropriate ejection delay. Some kit vendors provide OpenRocket or RockSim files for their kits, which can be tweaked with the precise data for a given rockets construction. * '''Don't rely on friction motor retention'''. Ensure that the motor is securely fixed within the rocket and can not come loose during flight by using a motor retainer device.
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