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Old Feb 28, 2012, 11:58 AM
Flying Dutchman!
robertboxhoorn's Avatar
Nederland, FL, Emmeloord
Joined Sep 2011
368 Posts
maybe this helps

the out take of the jet is 20mm intakes both about 20 square mm
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Old Feb 29, 2012, 02:35 PM
Flying Dutchman!
robertboxhoorn's Avatar
Nederland, FL, Emmeloord
Joined Sep 2011
368 Posts
now it's ready to fly
I only need to paint it





























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Old Feb 29, 2012, 02:43 PM
Flying Dutchman!
robertboxhoorn's Avatar
Nederland, FL, Emmeloord
Joined Sep 2011
368 Posts
my final setup is:

2x
http://www.modellhobby.de/Electronic...&t=9&c=75&p=75

1x
http://hyperion-eu.com/products/product/HP-Y12L-5800

running at a gws 3x2

1x
http://www.rctechnics.eu/himodel-brushless-p-393.html

1x
http://hyperion-eu.com/products/prod...-LG325-0450-2S

1x
http://www.quartel.nl/webshop/produc...hp?id=MPX55923

final the weight is 122gr inc. lipo
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Old Mar 03, 2012, 06:49 PM
sailplane nut
Herminie, PA 15637
Joined Apr 2007
213 Posts
Hello again from RCbobcat55@yahoo.com. For a low priced motor try HobbyKing.com. I purchase a lot of items from them for my DLG which I kit (look under sailplanes/hand launch/Dyne-O-Mite) and they have a wide selection of motors. I recently got one from them which has specs very close to an Axi outrunner and it was less than $30.00. It will be used in a new kit I am about ready to release- a 6 ft span old timer electric replica and this motor really has the guts.but isn't a current hog. thanks for the info on the Mini Viper Bob M.
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Old Jul 15, 2012, 06:54 PM
Registered User
Virginia Beach, Virginia, United States
Joined Jan 2004
640 Posts
After watching this thread for awhile I took the plunge and built on of these. Finished last night and maidened today. Awesome little plane. 4 flights today.

Hacker A10-12S
2s 360 or a 2s 800 (Have to add 1/2 oz of weight to get it to balance with the smaller pack)
2- HK 2.7g servos
1- HS-55 servo
Turnigy 6 amp esc
APC 4.1 x 4.1
Spektrum AR 400 rx
Total weight: 145 grams

Love this plane. Nice easy under hand launches. Now to build one with a 3s setup!
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Old Jul 17, 2012, 03:06 AM
Flying Dutchman!
robertboxhoorn's Avatar
Nederland, FL, Emmeloord
Joined Sep 2011
368 Posts
did you have one picture from under the canopy?
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Old Jul 17, 2012, 09:14 AM
Registered User
Virginia Beach, Virginia, United States
Joined Jan 2004
640 Posts
I can get you a picture later today.
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Old Jul 17, 2012, 02:40 PM
Registered User
Virginia Beach, Virginia, United States
Joined Jan 2004
640 Posts
Here are a few more detailed pics.
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Old Jul 18, 2012, 06:04 AM
Flying Dutchman!
robertboxhoorn's Avatar
Nederland, FL, Emmeloord
Joined Sep 2011
368 Posts
thank you!

isn't a hs55 servo not to big for this size of planes? you can use an 5gr servo to without having any problems...
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Old Jul 18, 2012, 06:35 AM
Registered User
Virginia Beach, Virginia, United States
Joined Jan 2004
640 Posts
I am sure you can use a 5g servo. I just used what I had laying around.
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Old Sep 02, 2012, 09:05 AM
Registered User
Joined Sep 2012
1 Posts
I built one of these set the CG to 40mm hacker outrunner etc.The first flight was on a very windy day , I wasn't even going to fly it was so windy but I had 4 sucessful flights that day. I couldent understand why people were having problems when launching. The next day was flat calm and I couldent wait to fly it again but after launching it did the death roll and slammed nose first into the ground!!! couldent get it to fly at all that day. Also the ailerons became very sensative anyone any idea why that would be?Does the motor cure the roll to the left on take off?
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Last edited by itrda; Sep 02, 2012 at 11:07 AM. Reason: Bad Grammer
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Old Sep 03, 2012, 10:44 AM
Flying Dutchman!
robertboxhoorn's Avatar
Nederland, FL, Emmeloord
Joined Sep 2011
368 Posts
no probably you need to throw harder and launch higher.

when the viper get speed there arent troubles anymore

maybe try bungee (not the one you get but a bigger one)
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Old Oct 15, 2012, 01:47 PM
Registered User
United Kingdom, Island Magee
Joined Jul 2011
19 Posts
Thanks had a few more successful flights and a load more crashes. Ordered a new airframe I might try my Medusa Inrunner in that with three cells and GWS 3x2 prop. What size / length bungee are u using?
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Old Oct 15, 2012, 04:27 PM
Flying Dutchman!
robertboxhoorn's Avatar
Nederland, FL, Emmeloord
Joined Sep 2011
368 Posts
No bungee just throw in an angle of 45 degree with full power and it should spin one time and get speed and fly
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Old Oct 31, 2012, 10:57 AM
Registered User
Joined Sep 2004
54 Posts
Viper with EDF

Iljas Pico ViperJet EDF (3 min 18 sec)


Post 71 and following ones.
http://www.rc-network.de/forum/showt...ght=mini+viper
Michael
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