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Old Oct 31, 2004, 08:27 PM
Michael K.
vol-haut's Avatar
Canada, ON, Burlington
Joined Oct 2004
202 Posts
Speed 400 Limited Motor Run Glider?

My local glider club hosts a F5J style limited motor run glider competition for 400 speed gliders. Only bushed ferite, no brushless, colbolt or modified motors allowed. Nicads or nickle hydrides up to 8 cells. I would like to join in the fun next spring but I don't know what kind of plane to build. I don't want a "trainer", I want something to really compete. Anyone have a suggestion? Any size and any number of controls are allowed. Gearbox or direct drive allowed. Motor run is 60 seconds. Flight task is 10 minutes with landing points. What are the "trick" setups to use?
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Old Nov 01, 2004, 04:09 AM
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Stan Rose's Avatar
UK
Joined Dec 2003
542 Posts
We have a similar set of rules in the U.K. Most people use either a 1.5m or 1.8m "Simply the Best" or a 1.5m or a 1.8m "Highlight" (known as an "Omega" in other parts of the world.) Power trains for both models are usually Speed 400 4.8v and Comotec 4.5:1 gearbox turning a 12" x 8" or thereabouts on 7 x KAN 1050's or these days 7 x GP1100's. If you go for this set up you will need a ESC that can deal with about 18-20 amps. 8 cells would improve performance slightly. It always amazes me what good performance and fun can be had from these relatively small and low powered models.
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Last edited by Stan Rose; Nov 01, 2004 at 04:12 AM.
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Old Nov 01, 2004, 05:33 AM
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Menges, Slovenia
Joined Dec 2002
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Slovenian F5J 400 scene:

http://mdm.zrcalo.si/forum/viewtopic.php?t=2738
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Old Nov 01, 2004, 07:10 AM
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rockville maryland
Joined Aug 2000
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polecat aero wind dancer wins hands down....poly version.
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Old Nov 01, 2004, 07:18 AM
RIP Ric
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Marietta, GA
Joined Jun 1999
43,312 Posts
I use my Joker (reviewed on LiftZone) for the Extreme F5J and although I'm not all that experienced, it was competitive. I had to add spoilers to the design, however.
..a
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Old Nov 01, 2004, 07:29 AM
SEFF Contest Director
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USA, GA, Stone Mountain
Joined Oct 2000
508 Posts
My koleos-e from Icare has served me very well. 3 years in a row I've come in either 2nd or 3rd at the NATS in 1/2A sailplane. I also have won twice with it in the F5J Extreme contests here on Ezone. The Sky Sergio is also very good.

Ernie S.
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Old Nov 01, 2004, 07:47 AM
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.Denver, Co.
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Iim banking on the poly Pulsar to be a contender.

http://www.nfmodels.com/html/poly_pulsar.html
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Old Nov 01, 2004, 08:15 AM
tender
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Europe - Slovakia
Joined Oct 2004
649 Posts
Quote:
Originally Posted by vol-haut
My local glider club hosts a F5J style limited motor run glider competition for 400 speed gliders.........I want something to really compete. Anyone have a suggestion?
I recommend you my SENSOR model.
For details about this model you can look my web-site http://www.rivamodels.sk >>> SENSOR
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Old Nov 01, 2004, 07:24 PM
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patagonia,az
Joined Oct 2002
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there seem to be 2 options

1 - Wind Dancer type about 70" span, geared, big 11-12" diameter prop.

2 - hand launch type about 60" span geared or direct drive

type 1 goes for thrust and slower speed to get a good climb

type 2 goes for higher speed with a shallow angle to get a good climb

type 1 is easier to see at altitude

type 2 disappears quicker from view

type 1 won the recent Abq ESWC, but type 2 was leading after day one

both types must be built really light for best results, really really light

older javelin launch HLGs would be candidates for type 2

use a 5v Rocket Speed 400 motor

I started flying Unlimited because Speed 400 was too difficult !!!!!!! and used too many motors

Philip
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Old Nov 01, 2004, 08:35 PM
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.Denver, Co.
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Ahem... I kinda remember Lenny dominating both days with his Mirage.
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Last edited by flyingdogtwo; Nov 02, 2004 at 05:27 PM.
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Old Nov 01, 2004, 09:11 PM
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patagonia,az
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you should look at the results then old chap

Philip
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Old Nov 02, 2004, 08:30 AM
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Where are they posted?

Did a Goggle on ESWC and got all kinds of unrelated stuff.

Sierra Gold
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Old Nov 02, 2004, 09:44 AM
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http://www.soarabq.org/f5j_wc_2004/f5j_main.htm
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Old Nov 02, 2004, 12:24 PM
Electric Airplane Junkie
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San Mateo, Ca , USA
Joined Jun 2000
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Quote:
Originally Posted by Stan Rose
models are usually Speed 400 4.8v and Comotec 4.5:1 gearbox turning a 12" x 8" or thereabouts on 7 x KAN 1050's or these days 7 x GP1100's. .
stan,

How many flights can you get out of that set up? I have the same set up, without cooling hole, I almost burn mt finger on the motor. I got about 20-25 flights then the motor is done. The plane is a converted 1.8m Candy.

Brian, an EAJ
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Old Nov 02, 2004, 03:44 PM
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UK
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542 Posts
I have been flying mine in competitions and for fun flying for about three years now with no problems. The motor run is usually no longer than about 25 sec's. at a time and I suppose that I run the motor about three times per flight. I don't have any cooling holes. I know others that do have to replace their motors from time to time but these motors are very cheap to replace.
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