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Author Topic: HYPER VIPER  (Read 2450 times)

Offline Greg Rodney

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HYPER VIPER
« on: January 06, 2019, 08:56:30 PM »
After what seems to be forever HB~>
The final product ready for production. It's my balsa version of the COX Hyper Viper.
Weighs just 195 grams (6.88oz)...with motor, tank, and wheels... without covering.
Can be ordered as a "QUIK KIT" with the wing jig built.
Or as a regular kit with instructions for the rather simple jig.
Wingspan is 27"
Length is 20-1/2"

QUIK KIT is $75.00 +S&H
Regular kit is $60.00 +S&H
Contact me at southridgecnc@gmail.com
Or call me 814-566-6562
Thanks for looking.
Greg
« Last Edit: January 07, 2019, 08:47:35 AM by Greg Rodney »
Never grow up!
If you grow up, you grow old.
If you grow old, you grow slow
If you grow slow, they catch you. When they catch you, they stick you in the ground! ...let's go play with airplanes!!!!

Offline Greg Rodney

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Re: HYPER VIPER
« Reply #1 on: January 06, 2019, 09:03:09 PM »
A few more pix from the build
Never grow up!
If you grow up, you grow old.
If you grow old, you grow slow
If you grow slow, they catch you. When they catch you, they stick you in the ground! ...let's go play with airplanes!!!!

Offline Daryll White

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Re: HYPER VIPER
« Reply #2 on: January 06, 2019, 11:59:59 PM »
Nicely done sir!

Offline Rene Whitaker

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Re: HYPER VIPER
« Reply #3 on: January 07, 2019, 07:24:00 PM »
Yes I agree! It looks Super Hyper! 

Offline Mark Mc

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Re: HYPER VIPER
« Reply #4 on: January 07, 2019, 08:10:48 PM »
Well, I'll be ordering one now.  I've been loath to trash my original NIB Hyper Viper, so this will be a good solution.

Now you just need to make a replica Cox Spook.

Mark

Offline Fredvon4

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Re: HYPER VIPER
« Reply #5 on: January 08, 2019, 10:41:15 AM »
WHAT MARK SAID

Now you just need to make a replica Cox Spook
"A good scare teaches more than good advice"

Fred von Gortler IV

Offline Greg Rodney

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Re: HYPER VIPER
« Reply #6 on: January 08, 2019, 11:13:46 AM »
I'll have to add it to my ever growing list n~
I've still got to finish up the PT-19, FW190 (COX Super Stunter), Lou Wolgast's 1/2A Mirage, and the Jim Walker Firebird....
Never grow up!
If you grow up, you grow old.
If you grow old, you grow slow
If you grow slow, they catch you. When they catch you, they stick you in the ground! ...let's go play with airplanes!!!!

Offline Ron Cribbs

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Re: HYPER VIPER
« Reply #7 on: January 08, 2019, 06:46:24 PM »
Iíll third the Spook. I have rough plans and dimensions if you need them Greg.

Offline RK

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Re: HYPER VIPER
« Reply #8 on: January 09, 2019, 04:33:06 PM »
What engine size is recommended ?

 Thanks, RK
If you come to a fork in the road,,,,Take it!

Offline Target

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Re: HYPER VIPER
« Reply #9 on: January 10, 2019, 12:52:13 AM »
I definitely want a Mirage. Foam wing?
Regards,
Chris
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Offline Greg Rodney

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Re: HYPER VIPER
« Reply #10 on: January 10, 2019, 08:44:10 AM »
The Mirage will most likely be a built up wing. I tried my hand at a foam wing on Jim Walker's Firebird and it didn't come out all that good.
Never grow up!
If you grow up, you grow old.
If you grow old, you grow slow
If you grow slow, they catch you. When they catch you, they stick you in the ground! ...let's go play with airplanes!!!!

Offline Target

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Re: HYPER VIPER
« Reply #11 on: January 10, 2019, 02:59:21 PM »
Maybe just a fuse and tail kit for me. I'm pretty handy with foam.
Either way, the Mirage 1/2A, and the full size are on my wish list.
Regards,
Chris
AMA 5956

Offline Greg Rodney

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Re: HYPER VIPER
« Reply #12 on: January 23, 2019, 10:07:21 PM »
A few people were wondering about the "jig" for building the wing.
Here are few pix of the jig that comes with the regular kit.
It's very very simple, but does the job rather easily.
Works best if tacked down over the plans into a piece of drywall.
If you tack it to your wife's dinning room table...I NEVER HEARD OF YOU!!!!

Greg
Never grow up!
If you grow up, you grow old.
If you grow old, you grow slow
If you grow slow, they catch you. When they catch you, they stick you in the ground! ...let's go play with airplanes!!!!

Offline Greg Rodney

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Re: HYPER VIPER
« Reply #13 on: January 23, 2019, 10:09:12 PM »
A few more.
Never grow up!
If you grow up, you grow old.
If you grow old, you grow slow
If you grow slow, they catch you. When they catch you, they stick you in the ground! ...let's go play with airplanes!!!!

Offline RknRusty

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Re: HYPER VIPER
« Reply #14 on: March 16, 2019, 06:10:28 PM »
Hi Greg,
Mine is coming along. I'm still trying to decide between a Tee Dee or a Norvel Big Mig .061. The TD fits a little easier, but the exhaust vent is simpler with the Norvel. I gotta make the decision so I can go ahead and cut the vents.

Here's a pic from today with a TD sitting in it.
Rusty
DON'T PANIC!
Rusty Knowlton
... and never Ever think about how good you are at something...
while you're doing it!

Jackson Flyers Association (a.k.a. The Wildcat Rangers(C/L))- Fort Jackson, SC
Metrolina Control Line Society (MCLS) - Huntersville, NC - The Carolina Gang
Congaree Flyers - Gaston, SC -  http://www.congareeflyer.com
www.coxengineforum.com

Offline Greg Rodney

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Re: HYPER VIPER
« Reply #15 on: March 16, 2019, 08:05:13 PM »
I've always been a COX fan.
Just keep in mind the original weighed between 10 and 12 ounces and it flew pretty good with just the Production .049 in it.
I would suggest using a Master Airscrew 7 x 3 prop for your first flight if you're going to run the Big Mig.
That will give you plenty of "pull power" but keep your lap time down to just below 4 sec on 42' lines.
Here's a link

https://www.masterairscrew.com/products/gf-series-7x3-propeller.

Greg
Never grow up!
If you grow up, you grow old.
If you grow old, you grow slow
If you grow slow, they catch you. When they catch you, they stick you in the ground! ...let's go play with airplanes!!!!

Offline Fredvon4

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Re: HYPER VIPER
« Reply #16 on: March 17, 2019, 10:26:31 AM »
GREG....next?

bunch of us waiting on the SPOOK.....WINK...HINT...PLEASE,   grin
"A good scare teaches more than good advice"

Fred von Gortler IV

Offline RknRusty

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Re: HYPER VIPER
« Reply #17 on: March 17, 2019, 10:59:42 AM »
I've always been a COX fan.
Just keep in mind the original weighed between 10 and 12 ounces and it flew pretty good with just the Production .049 in it.
I would suggest using a Master Airscrew 7 x 3 prop for your first flight if you're going to run the Big Mig.
That will give you plenty of "pull power" but keep your lap time down to just below 4 sec on 42' lines...

Greg
Greg, Thanks. I'm actually using another approach for achieving a good speed for a Stunt run, which I think better suits the pressure bladder feed. Rather than heavily propping the engine, I'd rather use a short flat prop so the engine runs in its peak power band where it's able to turn max RPMs and get the benefit of its SPI and no bogging in hard turns. I'll tame the speed with a low pitch, like an APC 5x2, 5.25x2 or 5.5x2. With the APC props, even a 6x2 will still allow either engine to peak. There is no other brand besides APC that will do this at 6" length. I know there are lots of people that'll think my approach is crazy, but I it works on 1/2A performance engines. If I was running on suction, this may possibly be different.

I started a build thread in the Open forum.

Rusty
DON'T PANIC!
Rusty Knowlton
... and never Ever think about how good you are at something...
while you're doing it!

Jackson Flyers Association (a.k.a. The Wildcat Rangers(C/L))- Fort Jackson, SC
Metrolina Control Line Society (MCLS) - Huntersville, NC - The Carolina Gang
Congaree Flyers - Gaston, SC -  http://www.congareeflyer.com
www.coxengineforum.com

Offline Greg Rodney

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Re: HYPER VIPER
« Reply #18 on: March 18, 2019, 06:38:47 PM »
Fred, Regarding the SPOOK!
The wing is designed...the tail feathers are designed...Fuselage is done as far as the 3D model goes.
Now to make sure I can hold on to it while the machine carves it without spitting a balsa block at me!
Amma gettin there!
NOW! I'm getting a few requests for the Hyper Viper as a 40 incher!  n~

The SPOOK is coming!

Greg
Never grow up!
If you grow up, you grow old.
If you grow old, you grow slow
If you grow slow, they catch you. When they catch you, they stick you in the ground! ...let's go play with airplanes!!!!

Offline Fredvon4

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Re: HYPER VIPER
« Reply #19 on: March 19, 2019, 11:40:32 AM »
cool

want one brother
"A good scare teaches more than good advice"

Fred von Gortler IV


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