Prop applications and rotation Hunter vtail 500

Lynxmotion UAVs / Drones
1

Hello guys, i’m new here and new to rc aircraft, all my experience is in surface so I need a little help. I’m building a vtail 500 and am confused on how and where to install my props. Here’s what I know:

Tractor props rotate clockwise
Pusher props rotate counterclockwise

My plan on rotation is this if your standing above the aircraft looking forward

Front left prop rotates ccw and will be an upside down pusher (so it pulls)
Front right prop rotates cw and will be a standard direction tractor
Back left prop will rotate cw and will be a pusher in standard direction
Back right prop will rotates ccw and will be an upside down tractor (so it pushes)

This hurts my brain :open_mouth: , so any help is appreciated. With any luck this guy should be airworthy by the end of March

Thanks!!!

2

Hi mzrhayes,

Welcome to the Lynxmotion forum… :wink:

All props will need to Push air to the ground in order to make the VTail fly.
The reason why there are CCW and CW props is to give the ability of actually move the copter by changing speed of motor, that create motion if one prop spin faster than the other.

All props should have the lettering facing up, and motor rotation should go accordingly.

Which flight controller will you use ?

3

Hey, thanks for the reply!, I’m using a Hobbyking KK2.1 board. So, all thrust must go toward the ground eh? Thanks, I was operating under the assumption the front would be pulling up and the tail would be pushing up. I’m sure Ill be posting more questions in regards to this hobby! Sure make my SC10 look easy!

4

For KK2.1 board, here is a post on RCGroups that will get you working fast.

Be sure to make your motor turn according to the prop, so if it said to have a CW prop the motor should turn CW as well. (I know it’s obvious said like that, but it’s most of the time the first problem)

5

Thanks so much for the help Eric, I know these must be obvious questions for veterans but not for me brutha!

6

Ok, i feel like Alice in Wonderland here! I understand i have to push air towards the ground to fly. The issue I have in my brain is this, my rear motors are obviously mounted upside down, so if I install the props with label visible (up) and make my motor rotation to match the prop label the thrust will be going up, correct? Should I reverse motor spin for the rear motors in this case? MY brain hurts

7

So, if you can post some pictures of how you mounted the propeller and give the real rotation of the motor for each one.
It can be the prop and it can also be the motor rotation or even both.

8

ok, should be at that stage soon, ill configure it and upload some photos for a visual, thanks again!