Skygate/CARF Viperjet
#626

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https://www.scale-cockpits.at/eshop/...er-mk2-skygate
Regards
Asif
#627

Hi
I have the same scheme. With those two batteries in the front, its definitely going to be nose heavy. My turbine batteries are located in the back of the fuel tank, and receiver batteries on the sides just in fron of the fuel tank.
Regards
Eduardo
I have the same scheme. With those two batteries in the front, its definitely going to be nose heavy. My turbine batteries are located in the back of the fuel tank, and receiver batteries on the sides just in fron of the fuel tank.
Regards
Eduardo
#628

Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 11,746
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The tail servos used make a big difference in the balance requirement, since the manual balance is so nose heavy, with JR servos in the tail we have Vipers with all three batteries on the fuel tank (with some cockpit) with metal case servos like Savox the batteries are in the cockpit in front of the tank.
Because the Viper flies OK with the forward balance many people leave it nose heavy...but it’s so much nicer with my rear balance!
Because the Viper flies OK with the forward balance many people leave it nose heavy...but it’s so much nicer with my rear balance!
#629

Hello fellow pilots. I have a Cayman painted Viper that I'm starting to assembly.
I'm going with the JetsMunt M166TS turbine for power and using the Electron ER40eVo gear and a GS 200 control as I have replaced the original controller.
Going with some new JR 8911 servos on the aileron elevator and rudder should have enough control. Flaps I'm using some Savox 1230 also for steering.
Radio is Jeti DS16 with a CB 210 central box using the thrid-receiver as the power switch and staying with all of the CARF hardware as it's quality is good.
I'm going to run some Navi lights on the wings with a strobe and a beacon for those overcast days flying.
Are there any issues/ problems I should be aware of this build I would greatly appreciate your point of view?
Russ
I'm going with the JetsMunt M166TS turbine for power and using the Electron ER40eVo gear and a GS 200 control as I have replaced the original controller.
Going with some new JR 8911 servos on the aileron elevator and rudder should have enough control. Flaps I'm using some Savox 1230 also for steering.
Radio is Jeti DS16 with a CB 210 central box using the thrid-receiver as the power switch and staying with all of the CARF hardware as it's quality is good.
I'm going to run some Navi lights on the wings with a strobe and a beacon for those overcast days flying.
Are there any issues/ problems I should be aware of this build I would greatly appreciate your point of view?
Russ
Last edited by Skunkwrks; 12-10-2020 at 11:06 AM.
#631

Well Hello skunkwurk- It may, as mine is Skunkwrks named after Lougheed's the special project.
I will help in regards to redirecting fellow FCU members to the USA skunkwurk and the Canadian Skunkwrks member....
I will help in regards to redirecting fellow FCU members to the USA skunkwurk and the Canadian Skunkwrks member....
#633

Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 11,746
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147 Posts

Ignore the manual balance point, it needs to be way behind where the designer put it. I think I put my figures in an earlier post. You may struggle to get the 8911 in the tailplane, it will need some work as it was designed for a 19mm 8411. The electron gear will require packers in the mains.
Otherwise it’s an easy build.
Otherwise it’s an easy build.
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Canadian Man (12-10-2020)
#634

My Feedback: (1)

Hello fellow pilots. I have a Cayman painted Viper that I'm starting to assembly.
I'm going with the JetsMunt M166TS turbine for power and using the Electron ER40eVo gear and a GS 200 control as I have replaced the original controller.
Going with some new JR 8911 servos on the aileron elevator and rudder should have enough control. Flaps I'm using some Savox 1230 also for steering.
Radio is Jeti DS16 with a CB 210 central box using the thrid-receiver as the power switch and staying with all of the CARF hardware as it's quality is good.
I'm going to run some Navi lights on the wings with a strobe and a beacon for those overcast days flying.
Are there any issues/ problems I should be aware of this build I would greatly appreciate your point of view?
Russ
I'm going with the JetsMunt M166TS turbine for power and using the Electron ER40eVo gear and a GS 200 control as I have replaced the original controller.
Going with some new JR 8911 servos on the aileron elevator and rudder should have enough control. Flaps I'm using some Savox 1230 also for steering.
Radio is Jeti DS16 with a CB 210 central box using the thrid-receiver as the power switch and staying with all of the CARF hardware as it's quality is good.
I'm going to run some Navi lights on the wings with a strobe and a beacon for those overcast days flying.
Are there any issues/ problems I should be aware of this build I would greatly appreciate your point of view?
Russ
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Skunkwrks (12-11-2020)
#635

Ignore the manual balance point, it needs to be way behind where the designer put it. I think I put my figures in an earlier post. You may struggle to get the 8911 in the tailplane, it will need some work as it was designed for a 19mm 8411. The electron gear will require packers in the mains.
Otherwise it’s an easy build.
Otherwise it’s an easy build.
Tone
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Skunkwrks (12-11-2020)
#636

Join Date: Jun 2002
Location: Watford, UNITED KINGDOM
Posts: 11,746
Likes: 0
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147 Posts

Yes, also for the original Air leg. Unless a manufacturer only offers the design with one choice undercarriage its best to have it undersized...without making opening the hole an impossible job!
Once we are confident all the original Air gear has gone into retirement we can redesign the gear mounts for Electron.
Once we are confident all the original Air gear has gone into retirement we can redesign the gear mounts for Electron.
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Skunkwrks (12-11-2020)
#637

Good to hear about the front gear tolerance, I haven't tried fitting the front gear. The whole airframe was designed around the german air retracts it seems, until CARF does a refresh with the Viper these issues will be addressed by guys like me preferring to Electron gear over the factory air set..
Thanks Agrav8ed and Dave for the help, looking for to flying this bird in May..
Thanks Agrav8ed and Dave for the help, looking for to flying this bird in May..
#638
#639

My Feedback: (92)

Skunkwrks -
I tackled the same issues when I built my son's Viper in 2013. We chose to try Behotec electric retracts & brakes - they are an easy fit (no modification required) and after 111 flights I can say they work at least as well at electron. The cool thing about them is they use stepper motors which permits the user to define up and down endpoints rather than relying on changes in current draw to stop.
Phil
I tackled the same issues when I built my son's Viper in 2013. We chose to try Behotec electric retracts & brakes - they are an easy fit (no modification required) and after 111 flights I can say they work at least as well at electron. The cool thing about them is they use stepper motors which permits the user to define up and down endpoints rather than relying on changes in current draw to stop.
Phil
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Skunkwrks (12-11-2020)
#640

Skunkwrks -
I tackled the same issues when I built my son's Viper in 2013. We chose to try Behotec electric retracts & brakes - they are an easy fit (no modification required) and after 111 flights I can say they work at least as well at electron. The cool thing about them is they use stepper motors which permits the user to define up and down endpoints rather than relying on changes in current draw to stop.
Phil
I tackled the same issues when I built my son's Viper in 2013. We chose to try Behotec electric retracts & brakes - they are an easy fit (no modification required) and after 111 flights I can say they work at least as well at electron. The cool thing about them is they use stepper motors which permits the user to define up and down endpoints rather than relying on changes in current draw to stop.
Phil
#642

The gear swing now is unobstructed and operates smoothly, had to shorten the steering arm so it would clear the fuse side