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Old Nov 11, 2006, 10:49 AM
Supersonic hover
Esprit440's Avatar
Michigan, United States
Joined Sep 2003
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The Stickler, a high performance model for brushless EDF-40

I've been working on this concept off and on for a year and recently got it to fly well. My goal was to create a very small high performance model that builds easily.

This project was a lot of fun and it's my pleasure to finally upload these plans!

-Matt
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Last edited by Esprit440; Nov 11, 2006 at 07:21 PM.
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Old Nov 11, 2006, 05:16 PM
EDF rules... :)
AirX's Avatar
Joined Nov 1999
13,530 Posts
Hi Matt,

Cool, looks like a winner. Any video?

Eric B.
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Old Nov 11, 2006, 07:16 PM
Supersonic hover
Esprit440's Avatar
Michigan, United States
Joined Sep 2003
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Hi Eric,

Nope no video yet. My Camera Girl is now Camera Mom and it's too cold to bring the baby along these days.

It's a hot little flyer though as you might imagine. Gets small quick and loops are pretty much as big as you like.

-Matt
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Old Nov 11, 2006, 08:31 PM
EDF rules... :)
AirX's Avatar
Joined Nov 1999
13,530 Posts
Hi Matt,

Congrats on the addition to the family. How did the high aspect ratio wings work out for you? I saw in the pdf which by the way is very nice work too, you had worked with a few different wing planforms before going with this one...

Eric B.
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Old Nov 11, 2006, 08:47 PM
Supersonic hover
Esprit440's Avatar
Michigan, United States
Joined Sep 2003
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Yeah originally it was a kind of edf pylon racer thing with a v-tail, which I wanted to try. One potential problem with the straight wing was twisting due to the narrow root chord. Never really flew any of those long enough find out for sure though - splat!

A couple of months ago I realized that I could update it a little bit and get a more jetlike look that seemed more appropriate for an edf. After a lot of difficulties it evolved into this version with upswept undcercambered tip panels and a shorter nose for yaw stability. Crash and learn.

I'm working on a couple of new designs for the EDF-40 (blogged) that build off of this one.

More Stickler flying tomorrow morning... fear no wind with high wind loading!

-Matt
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Old Nov 11, 2006, 08:58 PM
EDF rules... :)
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Joined Nov 1999
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The Injector looks pretty cool, the Starfire look alike is also hot....

Eric b.
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Old Nov 11, 2006, 09:13 PM
Supersonic hover
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Michigan, United States
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Argh a Starfire you're right! And I was concerned that it was practially an A-4... interesting what happens when you just let a generic jet shape come together.

-Matt
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Old Nov 11, 2006, 09:20 PM
EDF rules... :)
AirX's Avatar
Joined Nov 1999
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The oly reason I fixated on the Starfire was seeing Chris Trues thread on his....
You ought to try an X32, the lines are great for depron construction.

Eric B.
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Old Nov 12, 2006, 01:06 PM
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Looks great Matt!

Cheers--Stacker
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Old Feb 17, 2009, 12:22 PM
Dragons, Windmills. All Same.
jcstalls's Avatar
United States, IN, Indianapolis
Joined May 2002
3,773 Posts
Hi,
Thanks for all the work, as I have been looking for something simple, yet performance and cool.

Builder her now, buy reducing it a little for a hot 30mm on three cell.

Found a neat old trick will cutting the 3mm hollow boom down; Why not run the elevator pushrod internally! Just a little mod to the elevator mount and Whala.

The Stickler; reduced about 10%
3 cell 300ma
smallest servo that will work.
30mm fan 6 bladed
>9000 kv team losi motor
forgotten tini cheap controller
RX as modified 2.4 5 channel lightened or tiny 72 w/ JST

Going for <100 grams so power/weight as 1:1.

Can post pics if creator/thread starter desires.

Jared
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Old Feb 17, 2009, 08:35 PM
Supersonic hover
Esprit440's Avatar
Michigan, United States
Joined Sep 2003
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Wow now here's an old thread!

Sounds like you're going to have a real rocket on your hands Jared. I wrecked mine a while ago when it got away from me on a lazy launch - make sure you throw that sucker HARD.

Please post your progress!

-Matt
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Old Feb 17, 2009, 09:57 PM
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Fresno, CA
Joined Aug 2002
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Hey, I'm watchin' too... Post pics :D

This looks like a simple and fun way to start up in EDF... I have been wanting to build and fly an EDF for a long time, and bought 2 GWS 50s 4 years ago and never did squat with them. I don't have a small 12mm brushless, but might go looking for one for the stock fan units. What do you think this would fly like with just the stock brushed motor?

Mark
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Old Feb 17, 2009, 10:08 PM
Supersonic hover
Esprit440's Avatar
Michigan, United States
Joined Sep 2003
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Hi Mark, yes it's pretty simple but a real handful in the air, hence the name. I don't care to recall how many prototypes I bashed up developing this one. It's pretty much on the ragged edge for a flat plate wing of this size.

I don't think a brushed setup would be flyable but you can pick up a 12mm brushless for under $30. Lots of fun!

-Matt
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Old Feb 18, 2009, 03:46 PM
Dragons, Windmills. All Same.
jcstalls's Avatar
United States, IN, Indianapolis
Joined May 2002
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Hi,
Simple pic of in progess, version 3 as just am a balsa guy still trying to get used to foam,

Some mode per gear I have,

Enjoy,

Jared
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Old Feb 19, 2009, 06:18 PM
Registered User
Fresno, CA
Joined Aug 2002
471 Posts
Hey Matt!

Thanks for the tip. I am looking for something simple to throw a GWS 50 at and thought this might be the ticket. Simple, and well... Simple

Mark
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