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Speed,Combat,Scale,Racing => Speed Talk => Topic started by: Peter Germann on February 02, 2009, 06:47:56 AM
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Please note that effective Jan. 1 2009, FAI has published a set of provisional rules for electric control line speed. See attach for details.
Kind regards
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Peter
Where can I go to see these FAI rules. Web site?
Clancy
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Hi, Clancy
go to: http://www.fai.org/aeromodelling/documents/sc4
and download F2 Control Line Competitions 2009 from either FAI or Belgium.
The rule you are looking for is to be found on pages 97 & 98
kind regards
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The rules site opened up OK for me.
In the King's English it boils down to:
F2G,
maximum weight, 21.16 ounces,
minimum wing area 93 square inches,
fixed lanfing gear (no dolly), and
everything else like F2A.
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Read the rules in the NASS news letter. DOC Holliday
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Just lost a lengthy reply, so this will be shorter.
I've been flying AMA Electric Speed since it started and would like to build a ship for FAI F2G when this class becoomes official.
The rules about landing and takeoff are unclear. Is a wheel on the airplane required for takeoff, or can a dolly be used if it, or its trip wire, remains in contact with the ground? The wheel could project from the bottom for landing.
Weight limit is tougher than AMA Electric, but if looks like about 130MPH should be an early target.
Will Stewart AMA 1947
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I'm sort of thinking that a guy who didn't mind "spending" a motor, controller, and battery pack could do 160 MPH.
Basically, you can "dump" energy from a battery to a motor a lot faster than you can dump it from a fuel tank to an engine, if you can afford a total melt-down to win.
ps: 0% nitro & 20% oil is lot more power-limiting than 42 volts.
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Hi All
I like the look of the new rules, Is there any information on current electric speed class, (ama, others) that may indicate a good starting point.
Weight limit could make it tough for lots of batteries and large motors, but mid sized and lipo's look good.
Regards
Stephen
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What's the contest? How fast you can throw a switch? LL~
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No, It's put a big pitched prop on an electric motor to get speed, then hope the timed run finishes before the fire spreads to the wing joint. LL~ LL~
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I used to run electric boats stright line speed. I did manage to to set a record at 42 mph on 8 cells and a stock can motor. I was pulling in the 50 amp range. Things smailed real bad at the end of run. I havn't looked at electric speed for a long time but with lypo and brushless it should be a blast.
H^^ H^^ H^^ H^^ H^^
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Weight limit could make it tough for lots of batteries and large motors, but mid sized and lipo's look good.
Regards
Stephen
Wellll, you have to draw the line somewhere, and The FAI draws that line at 2.5 cc (or .15 in The King's English), in F1C, F2A, F2C, and F2D. That's pretty small by US standards, but still plenty of cubics to make a high performance plane if you put your mind to it. They fit into smaller cars and smaller airline boxes.
Same-same electric speed. Sure, a bigger, heavier, most expensive plane would go faster, but it's the same weight limit for everybody. This way, you get to burn down a smaller battery pack.
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[quote LL~ [/quote]
Moderator - like it. Glad my post was taken in the intended spirit!
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we do this stuff for fun and if you can't have fun doing it time for somthing else. i found your post to be very funny i can't remember ever having to zap any posts here in the speed section.