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

[Terryscustom]

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?

Not sure I understand? Servos in the stab is pretty standard issue on all 50cc and larger ARF's? There is a hole in there for it, so you install it like any other servo. To tighten the servo arm lock simply rotate the servo arm and stick your allen wrench in through the slot where the arm sticks out.

 

[Turbine]

Not sure I understand? Servos in the stab is pretty standard issue on all 50cc and larger ARF's? There is a hole in there for it, so you install it like any other servo. To tighten the servo arm lock simply rotate the servo arm and stick your allen wrench in through the slot where the arm sticks out.

The problem is more how to pre-drill the holes for the servo mount screws. My drill is to big to get down to it.

 

[Terryscustom]

Oh, you didn't say drilling the holes just getting it in there and tightening the servo arm lock. For drilling holes I have a 1/16" drill bit that I drilled and glued into the end of a dowel.

 

[Turbine]

Oh, you didn't say drilling the holes just getting it in there and tightening the servo arm lock. For drilling holes I have a 1/16" drill bit that I drilled and glued into the end of a dowel.

Aaah great idea. Thank you very much.

 

[Turbine]

Aaah great idea. Thank you very much.

Also maybe I missed it in this threat but can you recommend low and high rate throws and expo to begin with.

 

[Terryscustom]

Also maybe I missed it in this threat but can you recommend low and high rate throws and expo to begin with.

That's all user preference. Set the throws up for maximum deflection and set the low rates to your preference is typical. The plane will not throw you any surprises while flying. I don't fly with rates at all so I'm not a good one to ask as far as low rates.

 

[Islandflyer]

For drilling that far (or even farther in), I use an old pushrod and I shaped the end with a Dremel into a flat pointed tip.

 

[sweetpea]

I need opinions here.

Looks like funds are going to be a little tight and finding a used 3W110 isn't happening. So I'm probably going with either a 3W106 or BME100 on the Viper. The other engine is going back on the PAU Edge. I'm barely good at 3D so I'd like Terry/Herve's thoughts on which engine they think would be better for each plane.

Right now the 106 is in the Edge, but I plan to dismantle and recover it over this next season.

 

[Islandflyer]

I need opinions here.

Looks like funds are going to be a little tight and finding a used 3W110 isn't happening. So I'm probably going with either a 3W106 or BME100 on the Viper. The other engine is going back on the PAU Edge. I'm barely good at 3D so I'd like Terry/Herve's thoughts on which engine they think would be better for each plane.

Right now the 106 is in the Edge, but I plan to dismantle and recover it over this next season.

I have no opinion: I don't know either engine.

 

[Dan767]

I need opinions here.

Looks like funds are going to be a little tight and finding a used 3W110 isn't happening. So I'm probably going with either a 3W106 or BME100 on the Viper. The other engine is going back on the PAU Edge. I'm barely good at 3D so I'd like Terry/Herve's thoughts on which engine they think would be better for each plane.

Right now the 106 is in the Edge, but I plan to dismantle and recover it over this next season.

Sam,

Check the dimension from the rear of the engine to the back of the thrust washer on the 3W. I think it's too long for the Viper.