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Old Oct 31, 2004, 09:27 PM
vol-haut is offline
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Michael K.
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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, 05:09 AM
Stan Rose is offline
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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.
Last edited by Stan Rose; Nov 01, 2004 at 05:12 AM.
Old Nov 01, 2004, 06:33 AM
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Slovenian F5J 400 scene:

http://mdm.zrcalo.si/forum/viewtopic.php?t=2738
Old Nov 01, 2004, 08:10 AM
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polecat aero wind dancer wins hands down....poly version.
Old Nov 01, 2004, 08:18 AM
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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
Old Nov 01, 2004, 08:29 AM
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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.
Old Nov 01, 2004, 08:47 AM
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Iim banking on the poly Pulsar to be a contender.

http://www.nfmodels.com/html/poly_pulsar.html
Old Nov 01, 2004, 09:15 AM
tender is offline
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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
Old Nov 01, 2004, 08:24 PM
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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
Old Nov 01, 2004, 09:35 PM
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Ahem... I kinda remember Lenny dominating both days with his Mirage.
Last edited by flyingdogtwo; Nov 02, 2004 at 06:27 PM.
Old Nov 01, 2004, 10:11 PM
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you should look at the results then old chap

Philip
Old Nov 02, 2004, 09:30 AM
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Where are they posted?

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

Sierra Gold
Old Nov 02, 2004, 01:24 PM
bhchan is offline
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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
Old Nov 02, 2004, 04:44 PM
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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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