Three Sizes Available for High Power Rockets That Use Dual-Deployment Parachute Systems

The most extensive book ever written about "how to build LARGE high power rockets." Recommended for all modelers getting ready to take a jump to those bigger and more powerful rocket engines. It takes you step-by-step in the process of how to prepare for Level 1, Level 2, or Level 3 high power certification.

G-Wiz Flight Computers

The ultimate in flight control for large and expensive rocketry projects. These onboard flight computers control when the flight events (like staging, parachute ejection) occur during the trajectory. Uses both barometric and accelerometer sensors to get the most accurate determination of the rockets altitude and orientation, so it provides extra reliability to control the flight. Available with or without data recording capabilities.

Entacore's AIM USB Altimeter

This is a programmable dual-event altimeter with data recording capabilities. That means that after the flight, it not only beeps out the peak altitude, but you can download the data into your computer so you can get a plot of altitude versus time. Great for determining the parameters of your rocket's flight.

Tele Metrum GPS Payload

This sophisticated payload allows you to track your rocket throughout the flight using GPS technology. It transmits the data to the ground, as well as data from baro and accelerometer sensors. It also performs dual-deployment ejection so you minimize the drift of your rocket as it comes down. It is even small enough to fit into a 29mm rocket! If you're looking for high-tech, there isn't anything else that matches this payload's features.

SkyAngle parachutes were designed and constructed specifically to handle the extra stress of high power rockets. Because of the extra weight of the bigger rockets, they have more than their share of parachute malfunctions. The SkyAngle parachutes are more durable, and bring your big rockets down slower.

A deployment bag is a device to help ensure that parachute inflates properly and in the correct order. It forces the lines to completely stretch out first, and then the canopy is released so that it can properly inflate. It also minimizes the loads on the suspension lines to prevent tears, and it gives additional protection from the heat of the ejection charges. If you're doing high power rockets, you really need this extra insurance to make your project a success.

Parachute Swivels

Ball bearing swivels for attaching your parachutes to help reduce risk of twisting and line entanglement.  Come in 3 sizes - 200lb, 300lb and 500lb

Tender Descender

This unique mechanism allows you to perform dual-deployment using a single parachute stowage compartment. It works by preventing the main chute from inflating, even though it has been ejected out of the rocket. At the right time (as determined by your dual-deployment electronics), it splits apart allowing the chute to fully inflate to bring the rocket down slowly and safely.

Quick Links

Use Quick Links to quickly attach and detach components of your rocket.  Great for connecting parachute shroud lines and electronic or payload bays to shock cords and swivels or replacing lost quick links in your Tender Descender.

Nomex Wadding

While not required, this would be a useful addition to this kit. If you don't use a heat shield, you'll have to use disposable wadding to protect the parachute from the heat of the ejection charge. And for a large diameter kit like this, it will take a lot of disposable wadding.

Epoxy Clay

While it has a 1,001 uses around the house, it works great on rockets to make super-strong fillets where the fins attach to the rocket. Better than regular epoxy because it stays in place and doesn't ooze all over the rocket. So you can get perfect fillets on all your fins, without having to do them one at a time.