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Genesis of LMR & HPR.

Large Sport Series 2


MONGREL 2.6 has proven to be a staple at launches nationwide due to the use of commonly available motors. Designed especially for 38mm rocket motors. Try H110-8, I69-8, J350-12, or go insane with 38mm K660-12. You might want to glass it. It also accepts 2.5" RATTWORKS hybrids!

Skill 2
Host Mount-tm 66mm
3x 29mm
4x 24mm
Recovery Parachute
not included
Launch Lug 1/2"
Diameter 4.0"
Length 68"
Weight 2.0 LB
Drag (CD) 0.469
SKU# 1205
Price $129.95
Definition Of Terms
MONGREL 2.6 66mm "Host Mounts-tm" were INTRODUCED to HPR using this very kit!!! My how times have changed with reloadables and with hybrids to add to the mix of time tested and convenient expendables. MONGREL 2.6 has kept up to date by supporting ANY length motor in 38mm with the included "Interchange Mount-tm". The 66mm "Host Mount-tm" tube directly fits 2.5" Hybrid motors!
The 66mm "Host Mount-tm" can accept a variety of other "Interchange Mounts-tm" (not included) such as 54mm, 29mm, 3x29mm, 4x24mm.
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, parachutes, glue, sandpaper, sealer and paint not included.

Finished rocket

A bit of history

Mongrel at LDRS-1 in August 1982.

Chris Pearson recovers his Mongrel from
an apple tree near the LDRS-1 range in 1982.
It seemed an unlikely sight so I snapped this photo!

The Mongrel has a storied history from
well before that in the late 1970's

The maiden flight of the mongrel was with a
cluster of 2x CD G62, clearly visible, and
3 PJ G88's. It was optically tracked to 0.98
miles and was recovered on a 6 foot parachute.
It was spectacular and introduced NAR to the concept
of Model Rocket Technology (MRT), larger rockets now
called High Power Rocketry (HPR), to differentiate
them from Model Rockets (MR), under 1500g liftoff
and 125g propellant maximum. HPR has no such
maximums. "Big toys for big boys"-tm was born!
Photo by Tom Kolis, as are many from that era.

Jerry Irvine holds his Mongrel while
wearing a rare and elusive Enerjet t-shirt!

Gary Rosenfield films (remember film?)
Korey Kline loading his Mongrel onto the pad
equipped with a prototype in-flight guidance
system, and launched from the traditional 1/2"
rolled steel rod. This image was used in California
Rocketry magazine (CRm) several times.

Mongrel liftoff!

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