Speed 400 F5 class?? - RC Groups
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Feb 14, 2005, 07:45 AM
Registered Billy

Speed 400 F5 class??

I was wondering if anybody can point me in the right direction regarding info about a speed 400 class in the F5 category. I am in the process of building an Allegro E-lite (2M w/speed 400) and a fellow club member (Louisville Area Soaring Society) told me he was interested in competing in this class. After some discussion we had five or six people on board for local type contests. Our problem: we don't have "official" rules or specs for this class. I am sure the info is out there , I just can't seem to find it.

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Feb 14, 2005, 08:00 AM
Registered User
die fliedermaus's Avatar
You might find your information on the AMA web site;

Feb 14, 2005, 08:09 AM
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Andy W's Avatar
One of the members here used to organize a UK F5B class that included speed 400 models - I copied the information years ago, the site is no longer up, but I posted a modified version with the intent of hosting such a competition at SEFF this year. My modified version of the information is still posted at http://www.ezonemag.com/~awilletts/f5b/
Feb 14, 2005, 01:37 PM
Registered Billy
Thanks guys, this will be a good starting point.

Feb 14, 2005, 03:42 PM
Registered User

sp 400 F5J

brian...do a search on google for F5J and go to ASA. you will find the current rules there. also check out the F5J EXTREME post on this forum. we run a club contest based on these rules each month....ken
Feb 14, 2005, 09:41 PM
Registered User

The Albuquerque Soaring Assoc. ( ASA )has monthly F5J contests and holds the Oct F5J World Challenge contest.

you can find the rules at http://www.soarabq.org/home.shtml

Fun event

Dick Roberts
Feb 15, 2005, 09:53 PM
Registered Billy
Thanks for the input guys. We are still in the "talking about it" phase, but the plans are to put on at least one contest for electric sailplanes this season. Possibly in August. I have checked all of the links from this thread and there seems to be a number of different ways to organise an event. It looks as if we have a little leeway as far as the rules go, so I guess we can adjust them for the types of planes being flown.

Feb 16, 2005, 08:16 AM
stone_axe's Avatar

I'll be ready by April to rechristen my Stratus and start flying tasks with you on Thursdays and Sundays if you want to try out some ideas prior to the contest.
Feb 17, 2005, 11:27 AM
Registered User
Kyri's Avatar
Here is a link to the F5B 400 that took place in UK some time ago:


The power was from 7x 500AR or 700AR cells; nowadays 7xGP1100 and a motor setup to swing the biggest square or almost square prop at around 50A is the way to do it.

I have used a F5D model in this way and I even flew a graupner terry (in the avatar).
Feb 18, 2005, 08:56 PM
Registered Billy
I appreciate all of the leads and looks like we have some interest growing locally. At least 5 club members (www.louisvillesoaring.org) have thrown their hats in. So far: two Polecat Wind Dancers, stone axe's Kyosho Stratus, an Allegro E (hopefully soon), and a Spectra (I believe). Not bad for mid February!
Like I mentioned in an earlier post Louisville Area Soaring Society is hoping to host a contest for F5J in August. I'll keep posting here as we learn more details.


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