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Genesis of LMR & HPR.

BIG BERTHA 6

bertha
Inspiration is provided by Vern Estes.
A product that has survived the ages in style.

BIG BERTHA 6 is a BIG kit with FIBERGLASS nose cone, plywood fins through the wall, dual deployment capable, 54mm "Host Mount-tm", and includes "Interchange Mount-tm" for 38mm. Customer provides parachutes, motors, and if needed, fiberglass layering for motors L or higher. The large stable design makes BIG BERTHA excellent for large payload or sport flights. Try an on-board camera in the large payload compartment! BIG BERTHA 6 can accomodate H, I, J, K motors. A practical scale-up of the popular Estes kit. A product that is popular and high performance.

SPECIFICATIONS
Skill 1
Motors 98mm
54mm
38mm
Recovery Parachutes
not included
Separation
Points
3
Diameter 6.5"
Length 89"
Weight 11.0 LB
Drag (CD) 0.55e
CP(") na
SKU# 1285
Price $279.95
Definition Of Terms
BIG BERTHA 6 can be slightly modified to accept new dual deployment systems and altimeters. The payload can be deployed on both sides of the coupler or both sides of the payload tube.
All U.S. Rockets Custom 6 Inch series kits feature feature pre-cut plywood fins, heavy duty airframe tubes, strong recovery harness, illustrated assembly and flight instructions, and all the high quality parts needed to successfully assemble and fly a high power rocket. Launcher, motors, parachutes, glue, sandpaper, sealer and paint not included. Please Note: Parachutes not included. At this advanced level the user is expected to provide his own parachutes, altimeter, and where appropriate fiberglass layer. All USR kits are dual deployment capable.

parts
Kit parts


layout

Parts configuration drawing.

User Feedback

Everything works just fine and looks good with a little bit
of finishing. A couple layers of fine weave glassfibre works
great. And I don't mind using a bit of sandpaper to small
stuff out. It's what makes building rockets fun. The
centering rings and fins on the BBB were excellent quality.
The large nose cones are nice also. And all of your kits are
better than the stuff Sheri was sending out with her Hot
Rockets. And a better price.

- Dale Windsor


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