This is our Saturn V. 4 months of work later... 10 feet tall, ~50lbs GLOW, on a cluster of 4 CTI J244 White and a central CTI K570 Classic. That's a complex "M1550"! Flown with Perfectflite HiAlt45k and Perfectflite Minialt/WD altimeters. Apogee was 3,121 feet AGL. Skunkworks (aka Polelecat Aerospace) kit.