3D Viper 120cc ARF is HERE!!!!!

[Turbine]

2" arm, 1.75" hole.

The spline is FUTABA correct? Same arm size on all surface servos?

 

[mnfatboy]

The spline is FUTABA correct? Same arm size on all surface servos?

If you are using MKS servos its futaba spline.


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[Jefflesh]

Terry, what temps are you getting on your DA-120 post flight?


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[Terryscustom]

Terry, what temps are you getting on your DA-120 post flight?
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Don't know, really don't matter much. Tune it properly and pay attention for a sag on an upline to make sure it's not lean on the high end and have fun. An engine will drop 100 degrees in a matter of seconds in the air during normal flight so temps on the ground are irreverent to anything.

 

[Islandflyer]

2" arm, 1.75" hole.

We have some of those available

 

[Madinpensacola]

Terry, what temps are you getting on your DA-120 post flight?


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In flight I'm seeing 160-280 depending on what I'm doing fwiw. Mine is baffled and vented just like @Terryscustom but can't tell you how our tunes match up. I run a bit fat all the time by choice. I have about 3 gallons through my DA120. Falcon 29x9 prop. Weather here has been in the mid 50s to low 60s. Sea level.

 

[Joe Hunt]

Jeff and my friend, Butch, just went from stock mufflers to tune pipes without cutting exhaust vents for them... he went from shooting it on the ground with a gun at 135f to 300f. He felt pretty irreverent, I guess.

 

[49dimes]

Jeff and my friend, Butch, just went from stock mufflers to tune pipes without cutting exhaust vents for them... he went from shooting it on the ground with a gun at 135f to 300f. He felt pretty irreverent, I guess.

Darn Joe......135 is pretty hot weather and can make one go crazy and shoot a plane on the ground with a gun. Get inside the AC and drink a cold one. We all know your supposed to shoot it in the air!

 

[Turbine]

Thanks, I'm not spending a ton of time editing video, just shooting from the hip. Hope it helps people who have questions....and maybe you can pick up a few ideas as well.

Elevator setup.....

Hi Terry, how did you manage to get the servos in the elevator stab? Even if I could get them in, how would I tighten the servo arm lock screw?

 

[Jetpainter]

A green Viper maidened at our field this weekend. I missed it, but I'm sure I'll see a lot of it this spring.