Quick Answer

For the AeroTech RMS-38 J510W reload kit, choose the delay based on your rocket's weight and expected altitude, then install the delay element carefully to avoid early or late deployment.

Why the delay matters for the J510W

The J510W White Lightning motor produces a fast, bright burn that can push a rocket to high speeds quickly. If the delay is too short, the ejection charge fires while the rocket is still moving fast, causing stress on the recovery system. If it's too long, the rocket may be falling at high speed before deployment.

The CRDK38-07 delay kit includes a 14-second adjustable delay element. You adjust it by drilling or sanding to shorten the delay, but you must follow the motor instructions precisely to avoid cutting too much.

Compatibility note

This delay kit is designed for the RMS-38 J510W White Lightning reload motors. It is not compatible with Mid Power RMS products, so check your motor hardware before purchasing.

Step-by-Step Delay Setup

  1. Determine the correct delay: Use a flight simulation program or the motor's recommended delay chart to estimate the time from burnout to apogee. Choose a delay that deploys the parachute at or slightly before apogee. Check the motor's instructions for the recommended delay range.
  2. Inspect the delay kit: Open the CRDK38-07 kit and verify that you have the delay element, insulators, and spacers. Check that the delay element is not cracked or damaged. Do not use a damaged delay element; replace it before flight.
  3. Adjust the delay if needed: If the required delay is shorter than 14 seconds, carefully drill or sand the delay element according to the motor instructions. Use a delay drilling tool to ensure a clean cut and avoid removing too much material. Measure twice, cut once – an over-shortened delay can cause early deployment.
  4. Install the delay element: Place the delay element into the motor casing, followed by the insulators and spacers as needed. Ensure all parts fit snugly and are oriented correctly. Misalignment can cause gas leakage and affect delay performance.
  5. Final assembly and test: Complete the motor assembly, then do a ground test of the ejection charge if possible. Verify that the delay element is secure and the ejection charge is properly installed. A ground test can catch assembly errors before launch.

Product Facts

  • AeroTech RMS-38 J510W White Lightning Complete Reload Delay Kit - CRDK38-07: The AeroTech RMS-Plus™ CRDK38-07 is for use with RMS-38 J510W White Lightning™ reload motors using the 14 second adjustable delay. This ensures you get the correct delay element for your motor, avoiding compatibility issues.

    AeroTech RMS-38 J510W White Lightning Complete Reload Delay Kit - CRDK38-07

    AeroTech RMS-38 J510W White Lightning Complete Reload Delay Kit - CRDK38-07