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News Letter
March 2009
by: David P. Andersen |
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The next meeting of
the Scale Flyers of Minnesota will be in October 2009 after the
summer flying season. Our
meeting location is the
American Legion Post, 6501 Portland, Richfield. East entrance,
downstairs. Guests are always welcome. Come early and dine in the
non-smoking restaurant.
(Directions) |
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At the last meeting ...
(Click on any photo to enlarge) |
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| Roy
Maynard showed an A123 lithium nano-phosphate battery
and its FROMECO charger. This state-of-the-art battery is
light weight, small size, fire-proof and has a life of 1000
cycles. Very little internal resistance precludes testing
with an ESVM, so an onboard device integrates current over
time and displays remaining charge on an LED display. Can be
charged in 15 minutes. Roy is using this battery for the
ignition unit in a DA 50 engine. |
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Scott Russell gave away twenty
3/16” long-handled ball drivers, surplus from his work.
Thanks, Santa Scotty. |
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Bruce Rumery
showed his World Models P-51 Mustang. 3.6 lbs. Powered by
Rimfire 41000 electric motor and lithium batteries.
Servo-operated mechanical retracts. Bruce placed a nearly
invisible hole in the rear of the canopy for battery
cooling. |
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Eric
Malkerson
displayed a set of retracts which he manufactures. Available
retract angles are 75 degrees, 82, 85 and 90 degrees. His
design has a closed trunnion and double-cinched strut clamp.
They are design to accept a 1/2" strut from Robart or
Century Jet. |
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Roy
Carrigan displayed a quarter-scale P-47 Sierra
strut custom-made for the Equinox P-47. The hub was
made by Dan Thiede of the ACRC club. It features
air brakes that use auto clutch material for the
disk plus ball-bearing wheels. Tires are adapted
from mountain board wheels. Further info will be on
our
www.mnbigbirds.com website. |
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Dave Andersen
gave a boring, math-laden lecture on cooling
techniqu es
for cowled engines that included a history of the
3:1 area rule. Excellent Presentation! |
John
Baligrodzki (651.779.0434 or
baligrodzki1@yahoo.com) described the upcoming
annual Minnesota Scale Classic contest
sponsored by the
Scale Flyers of
Minnesota and
CD’ed by John. This Scale Masters Qualifier will be
held in Owatonna on August 1st, rain date
August 2. Events will be Fun Scale Novice and
Expert, combined Sportsman/Expert and Team. Top 30%
in Sportsman/Expert and Team will be invited to the
national Scale Masters Championships
www.scalemasters.org. Prizes will include a
2.4 radio. The move to a much bigger field is
expected to draw more large airplanes. |
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Have a Great 2009 Flying Season! |
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