NZ sports electric class

NZ sports electric class

Postby Jacko » Mon Feb 25, 2013 7:21 pm

What would you like to see in a sports electric pylon class in NZ?

Watt limiters?
Prop/rpm limits?
Set motors/escs/props?
Set airframes?
min/max Wingloadings? Span?
ARFs, Kits, scratchbuilts?
How fast should they be?


Throw your ideas here :ugeek:




Various other countries run different classes, nothing is FAI ratified though.



Germany and a few other european countries run F5D-Lite (max 3S, 800 g min weight and 450 W/min energy limit, but other than that the same rules as F5D)



In the UK they run E2k - http://e2kpylon.webs.com/



The US run EF1 http://www.nmpra.org/rules/EF1NewRules2 ... 5B1%5D.pdf

Jacko
 
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Re: NZ sports electric class

Postby blitzu » Mon Feb 25, 2013 9:50 pm

Depends i spose on how serious the class gets....I have always thought about a class where you race people based on times that are with in 5 odd seconds of each other....any size plane,mtr,race what you like. :D
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Re: NZ sports electric class

Postby DUP » Tue Feb 26, 2013 11:34 am

Probably wing loading (maximum) and a max battery weight (any configuration) is easiest to set up/enforce and still provide scope for many different types of planes to be eligible.

Be good to see lots of different ideas in action.
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Re: NZ sports electric class

Postby Geoff » Sat Jan 11, 2014 4:19 pm

EF1
Good looking planes.
Planes are widely available and reasonable cost.
Planes ROG, only a sick puppy throws a plane. :lol:
Rules are already in place and comprehensive . NMPRA web site.
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Re: NZ sports electric class

Postby Jacko » Sat Jan 25, 2014 10:49 am

Ill race EF1 if thats what we want to race, but there doesnt seem to be much interest in it here,

But you are right, the rules for it a very clear and all laid out, with both ARF/plans/kits available.

Im not fussed about wheels, they belong on cars not planes ;)
Jacko
 
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Re: NZ sports electric class

Postby blitzu » Tue Feb 18, 2014 9:14 am

Chris or any1 else...can we get the 'limited f5d rules' set in stone?
So will we be following/useing "Germany regulations"...the only difference being-850g minimum/500w minute (limiters apply)....is that the go ya reckon? Any other rules..? :?:
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Re: NZ sports electric class

Postby blitzu » Thu Feb 20, 2014 7:05 am

Ok cool....we're following the German rules for Limited f5d (except for watt minute's and weight) which where described in post above...
Now I know where we heading...I can start planning... 8-)
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Re: NZ sports electric class

Postby Jacko » Thu Feb 20, 2014 6:08 pm

The Germans run F5D Lite as their feeder class, which is max 3S, 800 g min weight and 450 W/min energy limit. The flying is essentially the same as F5D. They do 1:20-1:30s. Most use F5D airframes, but, F5D itself is pretty open airframe wise (Max 65g dm2 is the only real rule), its not highly restricted like Q500 etc.



The NZ sports class has essentially been ratified as ( I wouldnt expect it to change )

850g minimum weight
500W static, at 60% charged packs.

Models do not require an undercarriage (But feel free to put one on and get your ass lapped!)
Must be tractor motor
2 bladed prop
Conventional configuration with front wing and rear stabilizers, V tails allowed.

So the rules are not really similar, BUT, both are very open. F5D lite is much less easy to fudge the power limits with the energy limiter.

If you bring a plane along, it weighs more than 850g, and pulls less than 500W static, it'll race ;)
Jacko
 
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Re: NZ sports electric class

Postby blitzu » Fri Feb 21, 2014 3:05 pm

So say on a 3s,it'd be 50a @ 60% static.So no limiters...? ;)
Gearboxes allowed...? :mrgreen:
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Re: NZ sports electric class

Postby Jacko » Sat Feb 22, 2014 6:46 pm

Yup 50A on 3S max static at 3.8v cell resting, gearboxes are fine, dont really need one at these power levels though, normal S400 props are pretty efficient. JD has a clamp meter (which throws exactly the same numbers as my unilog2)

Ive tried about 6 different setups in sports so far, 16/25/2 (2470kv) 3S 2200 and a 5.2x5.2 Graupner is definetly my favourite and very competitive.
Jacko
 
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