Well, My son and I are aiming to get our scratch-built rocket ready for the fourth of July. It's about six feet (2 meters?) tall, weighs about 8 pounds (3,600grams), and 7.7 inches (196 mm) in diameter.

I'm loading five (5) Aerotech G80-7 motors for a total of about 600 Newtons of total impulse. According to the calculations that I've performed, maximum altitude should be about 1,100 feet (323 meters) which should be reached in 7.3 seconds at an airspeed of 263 MPH (117 meters per second).

We'll see what happens. It might be an exciting event! LOL !!! Everyone is concerned about what safety equipment to bring with them to the launch!