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Old Nov 06, 2007, 03:21 AM
D'oh.. Dumb Left Thumb
dekan's Avatar
London, UK
Joined Nov 2006
5,398 Posts
Remember 47, this is a pusher with a 39grm motor and the short fus balancing it may be a problem. Look for a motor of about 20-24 grms

try this link for aussie suppliers
http://www.rcgroups.com/forums/showthread.php?t=571716
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Last edited by dekan; Nov 06, 2007 at 04:42 AM.
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Old Nov 21, 2007, 05:45 AM
Registered User
Estonia
Joined Sep 2005
216 Posts
i have built my mini cutlass and it just wont fly:S I have a blue wonder motor on it and 500mah hextronix 11.1v lipo. 7035 prop and tried to make it as light as i could. It may be the cg issue i guess or it is that im new to flying wings. when i threw it, it just made a loop and when i put the battery a bit more forward it just nosed in. Can any1 suggest me a proper cg location for mini cutlass?
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Old Nov 21, 2007, 06:10 AM
Build 2 Bounce!
Birmingham, UK
Joined Jul 2006
1,660 Posts
tann, I found mine flew nicely with the CG 8" back from the nose (just behind the 'nose doublers').

Try launching it without the motor running and adjust the cg until you can launch it level and get a nice glide.

Which Kv version of the Blue Wonder are you using?

Si.
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Old Dec 13, 2007, 09:34 AM
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Joined Aug 2007
3 Posts
Nice wing, thanks for the plan ! I am just building my mini Cutlass. But instead of EPP I am using 6mm depron - 2 ply. Planned setup is:

- AX 1806N 2100kv Brushless Micro Motor (19g) from unitedhobbies.com
- ESC 12A 10g
- 2s LiPo 620 mAh
- 2 x 9g servos like SG-90 or HXT900
- micro receiver ca. 7g
- prop. ??? but max 7" :-)

A few photos from building:

http://www.mojefotogalerie.com/rc/fo...ss/cutl_01.jpg
http://www.mojefotogalerie.com/rc/fo...ss/cutl_02.jpg
http://www.mojefotogalerie.com/rc/fo...ss/cutl_03.jpg
http://www.mojefotogalerie.com/rc/fo...ss/cutl_04.jpg
http://www.mojefotogalerie.com/rc/fo...ss/cutl_05.jpg
http://www.mojefotogalerie.com/rc/fo...ss/cutl_06.jpg
http://www.mojefotogalerie.com/rc/fo...ss/cutl_07.jpg
http://www.mojefotogalerie.com/rc/fo...ss/cutl_08.jpg
http://www.mojefotogalerie.com/rc/fo...ss/cutl_09.jpg
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Last edited by Marek71; Dec 13, 2007 at 02:23 PM.
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Old Dec 19, 2007, 09:46 PM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
So, I've been playing around with drawing up my variation on this beautiful design


I'm designing around an EDF64 that I've fitted with a Blue Wonder 3000

And a KFm airfoil instead of carbon spars...

Whatcha think?
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Old Dec 20, 2007, 12:57 AM
D'oh.. Dumb Left Thumb
dekan's Avatar
London, UK
Joined Nov 2006
5,398 Posts
Looks good GB, I still fancy making one.
I'm very interested to see how the KF wing works out
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Old Dec 21, 2007, 04:03 PM
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globalarray's Avatar
Louisville, KY
Joined Dec 2007
145 Posts
I think I'll give this one a quick try. Are these the most resent plans that have been flown? EPP Cutlass tiled plans v2.pdf

Think I'll go with bluecor.
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Old Jan 06, 2008, 11:00 PM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
Finally Finished and maidened my 24"ws EDF EPP Cutlass (indoors ) today


The EDF worked great! - ~1.5:1 thrust to weight (7oz w/ 3x500)

The EPP worked great! (I hit everything, ceiling, walls, floor, other planes, and pilots

It will ROG from the gym floor with the little peg up front. Ground handling isn't too bad with the elevons!

A little bit of adverse yaw when flying slow / high alpha.

I failed to get video, but remembered some pictures:
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Old Jan 09, 2008, 06:10 AM
Build 2 Bounce!
Birmingham, UK
Joined Jul 2006
1,660 Posts
Looks great Gene! I bet it was a bit of a handful indoors .

I like the peg idea for ROG's. Looks like you have another possible combat model there

Si.
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Old Jan 09, 2008, 06:12 AM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
BTW, there's not c/f or any other bracing.

AUW is 7oz w/ 3s500.

It will do a vertical takeoff

Need to get it outdoors, but our weather sucks (for flying) right now... 60, rainy, and 20mph winds. Winter returns this weekend.

I will be flying it at E-Fest
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Old Jan 11, 2008, 05:44 PM
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DanT's Avatar
San Angelo TX.
Joined Feb 2006
1,188 Posts
I think you guys are better fisher men then I am?
My 30 inch out of CellFoam 88 and it's not even glued together yet and with all the parts sitting on my digital scale . It's already 12 oz.!!!!!
Oh,, well.
I will post setup when I have more time..
I am using a TP 3 cell 1320 battery and CC thunder bird 18 esc. Battery is about 3 oz by it's self. and ESC is about 24grams.

Update, total airplane with carbon spars not glued yet , 155.6 grams or 5.5 oz. And this is with no electronics . (Two layers of 3mm foam on everything but cabin that is 1/2 inch foam I will cut down .)
Motor,http://www.unitedhobbies.com/UNITEDH...idProduct=4859

HXM2730-1500
hexTronik 24gram Brushless Outrunner 1500kv
with motor mount 29 grams.
prop GWS 8x4 5.2 grams.
wood for motor mount 3 grams.
25 grams CC thunder bird 18 ESC ( I have it so I will use it.)
17 grams for two servos with arms.
11 grams for berg 4 RX .
TP 1320 3 cell battery with deans plug ,89.4 grams. ( I have 3 of them and love them.)
Cutlass total without battery or glue or paint.... 8.8 oz. or 247.3 grams!
Total weight with out glue or paint,,,,,, 337.3 grams or 12 oz.

Update ,some more pictures.
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Last edited by DanT; Jan 18, 2008 at 11:13 AM.
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Old Jan 11, 2008, 10:39 PM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
Yes, Dan, Mine's about 1/2oz heavier than it needs to be, due to the fan shroud. A proped version with a 1700 Kv motor would be better all around, except the cool looks ROG, and sound

My battery is <2oz, the motor 1oz, and the ESC <1/2oz. 2 9g servos and a ~10g rx finish it up.
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Old Jan 12, 2008, 06:38 PM
Registered User
globalarray's Avatar
Louisville, KY
Joined Dec 2007
145 Posts
Great weather today, glad to get to fly the cutless with my 15 yo daughter at the camera. And it did cut my hand. I'll let you know how it is after the blood and tinging stops.
BlueCor Cutless (2 min 16 sec)
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Old Jan 13, 2008, 12:19 AM
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tallflyer's Avatar
United States, CA, San Diego
Joined Jul 2002
6,295 Posts
Great Video Nice Flying! Great little design fly's great once you get the CG right!
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Old Jan 13, 2008, 05:17 PM
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globalarray's Avatar
Louisville, KY
Joined Dec 2007
145 Posts
Thanks, I normally fly like my pants are on fire. It balanced right at 11 1/4" from the nose. I'm using a 2c 1300mah and a 6/4 prop to keep it light. It's about 10oz iirc. It's a good plane and easy to build with no bamboo or cf, just fiber tape top and bottom.
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