Please pardon the following interruption of service so that I can display a photograph regarding a technical question. Thank you for your patience.
Bubble is about 1 inch long, about 2 inches deep. There are also two smaller bubbles, shown in the second photo.
It was hot, hot, hot in Nevada's Black Rock Desert at LDRS 32.
G-o-o-o-o-o for O!
Jackson launched his first O-motor rocket – his Ultimate Dark Star on a CTI O3400. Traveling at mach 1.8, the rocket flew to 21,300 feet.
Jackson has now launched the alphabet A through O! (Ok, technically, he completed this the weekend after LDRS when he launched an H motor at Eat Cheese or Fly. Somehow he skipped H. Go figure.)
Judy launched Stratosphere, a 98mm minimum diameter rocket flying on a 6XL grain CTI N2900 Classic. The press molded carbon fiber fins were made by Wildman Rocketry. They had a diamond airfoil and radial taper. Because of their manufacturing technology, each fin weighed only 4 ounces. The fully prepped rocket minus motor was only 11 pounds. With motor, the rocket was 43 pounds. This was not a lot of weight for the 17,000 total Newton seconds of impulse that the motor delivered. Predicted top speed was mach 3.
Stratosphere left for its namesake from Manny Ballestero's tower. We really appreciate him bringing the tower all the way out to the Black Rock and letting us use it. And, we appreciate the extra bit of excitement that it's design inadvertently added to the photos. However, we still suggested that Manny redesign the blast deflector (or flame thrower as it was in this case) so as not to bathe the rocket in flame just before it generates intense heat from the friction of high mach speed.
Unfortunately, Stratosphere never made it to the stratosphere. She lost fins at mach 3.
Video by Alex from UROC, aka AKSRockets