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Genesis of LMR & HPR.

Large Sport Series 2

UPRATED MONGREL II



UPRATED MONGREL II is two stage advanced heavy lift payload rocket for research and display applications. Large size and heavy wall aerospace grade paper airframe tubing highlight this large rocket. 66mm host mounts (tm) in each stage accept a variety of interchange mounts (tm) including 29mm, 54mm and 3-29mm.




SPECIFICATIONS
Skill 3
Host Mount-tm 66mm
each stage
Interchange
Mounts-tm
54mm
38mm
29mm
3x 29mm
4x 24mm
Recovery Parachute
not included
Launch Lug 1/2"
Diameter 4.0"
Length 87/68"
Weight 3.0/2.0 LB
Drag (CD) 0.64/0.47
CP(") UNK
SKU# 1017
Price $199.95
Definition Of Terms


UPRATED MONGREL II was the earliest "complex HPR rocket". My how times have changed with reloadables and with hybrids to add to the mix of time tested and convenient expendables.


All U.S. Rockets Large Sport Series 2 kits feature pre-cut plywood fins, heavy duty airframe tubes, recovery harness, illustrated assembly and flight instructions, and all the high quality parts needed to successfully assemble and fly a high performance model rocket. These kits represent the state of the art in technology, performance and cost efficiency. They use USR standards such as "Interchange Mounts"-tm. They feature exceptional quality parts such as aerospace specification airframe tubes, plywood fins, wood or plastic nose cones. Launcher, motors, glue, sandpaper, sealer and paint not included.



A bit of history



The first Uprated Mongrel II flight in 1979
with 4 Plasmajet G60 motors boosting!



In a slightly over the top caption the
Uprated Mongrel II is shown to the world
for the first time in the April 1981
issue of California Rocketry magazine.
2 CD G62's and 3 FSI F7's in the upper!



Plasmajet G88's (seen here) and G60's were a
primary motor in the early days of MRT/HPR.


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