Semroc Mark II (KV-1)
Skill Level 1
1957 Retro Reproduction
Precision-Turned Balsa Nose Cone
Laser-Cut Balsa Fins
Body Diameter 1.04" (2.6cm)
Length 9.5" (24.1cm)
Fin Span 4.4" (11.2cm)
Net Weight 1.0oz (28.4g)
Engine Approx. Altitude
Model Rocket Kits are rated by Skill Level
If you are just starting in the hobby start at the beginner level and move up from there at your own pace.
What is needed to build and fly
All model rockets come in kit form that require assembly. The materials are primarily cardboard tubes, balsa or plastic fins and nose cone. Materials will vary by model and are typically specified in the description of each kit.
Additional supplies will be necessary to build and finish your model rocket kit and may include:
Scissors, Hobby Knife
Wood Glue, Model Cement or CA(Super Glue)
Finishing Supplies like:
Launching Equipment and Supplies like:
Model Rocket Motors and Igniters
A safe place to fly using guidelines from the National Association of Rocketry Safety Code
About the Mark ll ™
The Carlisle Rock-A-Chute Mark ll was initially released in 1957. it more resembled modern model rockets than the original Mark l which looked more like a fireworks rocket from the early 1950’s. although it’s market was small. It did provide inspiration for hundreds of successive designs.. The Estes Astron Mark was an improvement of the Carlisle Mark ll that used the newer model rocket engines. The nose cone was from a Leeds Sweete plastic crayon sharpener. The fins were stapled to tag board reinforcing strips, which were then stapled to the hardwood engine mounts.
The Retro-Repro™ Mark ll ™ is updated with precision laser-cut fins. The original plastic nose cone is replaced with a balsa nose cone. The original 18” parachute has been reduced in size to 12”. The original rubber shock cord is replaces with an elastic cord for longer life. The original method of attaching the shock cord has been replaced by a Kevlar cord for greater reliability. An engine hook is also added for ease of changing the engine.