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BMR3 Series
TANDEM GOODNESS
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TANDEM GOODNESS is a VERY high performance sport
model. It
features very high
performance design, easy construction, and high visibility
streamer recovery.
TANDEM GOODNESS uses innovative and time tested "Tandem Motor"-tm
technology! For example, you can bond a C6-0 to a C6-0 end to end
with superglue to form a single booster motor. You then bond a C6-0
to a C6-7 end to end with superglue to form a single upper or sustainer
motor. The first combination acts as your booster motor and the second
combination acts as your upper motor making a 2 stage flight with 4
stage excitement! | |
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SPECIFICATIONS |
| Skill |
2 |
| Motors |
18mm/18mm to
18mm/18mm
Tandem Mode-tm |
| Recovery |
Streamer |
| Diameter |
1.0" |
| Length |
32" |
| Weight |
140g |
| Drag (CD) |
0.65/0.45e |
| CP(") |
0/0 |
| SKU# |
1266 |
| Price |
$29.95 |
| Definition Of
Terms | |
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| TANDEM GOODNESS
uses simple direct staging. Also suitable for launching 18mm USR
motors of longer length including E10 to F20 using electronic
staging. The kit includes a report on "Tandem Motor"-tm technology!
Some combinations work reliably and we focus on those. The principal
of "Tandem Motor"-tm technology! is to fire the second motor through
the first and utilize some of the inside of the casing as added fuel
while maintaining normal pressure since the second nozzle is about
the same size as the first. The second case also acts as a "plenum"
to further enhance combustion before the chemicals are ejected out the
motor "system." "Tandem Motor"-tm technology was once considered for
NAR motor certification! Alas, it is in the domain of experimenters
and tinkerers now, but it still rocks!
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| All U.S. Rockets BMR3
series kits
feature pre-cut plywood fins, heavy duty airframe tubes, strong
shock
cord, illustrated assembly and flight instructions, decal and all
the high
quality parts needed to successfully assemble and fly a high
performance model
rocket. Launcher, motors, glue, sandpaper, sealer and paint not
included. | |
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