Landing gear

[rcwees]

i have built a simple cub and am currently building a ft 3d and ft p40, so i need tips for landing gear, any idea shapes of the wire or anything, on my simple cub i cant get it off the ground since it just stalls because it has to go really fast. so i was wondering if its best for hand launches without gear and then just touch in down in tall grass, the problem is i live in a desert and there isnt really any grass. any ideas, designs for skids or something. when i did a hand launch my cub just went up but then stalled and rolled left. from when we got a successfull hand launch it flew great but not at low speeds, when it goes to low speeds it just is completly uncontrolable and just gets really sensative. i decided to give up on it for now and am focusing on the 3d, but its there anything for how to launch it, or how to land, or if i should use landing gear or not. i bought actualy wheels and have collars and made good gear but we went to fly it nd it just keeps spinning out. i have been trying slow speed takeoffs, should i do higher speed takeoffs? thanks for any tips.

 

[Matthewdupreez]

i have built a simple cub and am currently building a ft 3d and ft p40, so i need tips for landing gear, any idea shapes of the wire or anything, on my simple cub i cant get it off the ground since it just stalls because it has to go really fast. so i was wondering if its best for hand launches without gear and then just touch in down in tall grass, the problem is i live in a desert and there isnt really any grass. any ideas, designs for skids or something. when i did a hand launch my cub just went up but then stalled and rolled left. from when we got a successfull hand launch it flew great but not at low speeds, when it goes to low speeds it just is completly uncontrolable and just gets really sensative. i decided to give up on it for now and am focusing on the 3d, but its there anything for how to launch it, or how to land, or if i should use landing gear or not. i bought actualy wheels and have collars and made good gear but we went to fly it nd it just keeps spinning out. i have been trying slow speed takeoffs, should i do higher speed takeoffs? thanks for any tips.

Slowly increase the throttle until it wants to lift off... Increase a little more ,and then a little up elevator and takeoff

 

[Taildragger]

i have built a simple cub and am currently building a ft 3d and ft p40, so i need tips for landing gear, any idea shapes of the wire or anything, on my simple cub i cant get it off the ground since it just stalls because it has to go really fast. so i was wondering if its best for hand launches without gear and then just touch in down in tall grass, the problem is i live in a desert and there isnt really any grass. any ideas, designs for skids or something. when i did a hand launch my cub just went up but then stalled and rolled left. from when we got a successfull hand launch it flew great but not at low speeds, when it goes to low speeds it just is completly uncontrolable and just gets really sensative. i decided to give up on it for now and am focusing on the 3d, but its there anything for how to launch it, or how to land, or if i should use landing gear or not. i bought actualy wheels and have collars and made good gear but we went to fly it nd it just keeps spinning out. i have been trying slow speed takeoffs, should i do higher speed takeoffs? thanks for any tips.

sounds like your cub may be tail heavy, did you check the cg?
either that or just too heavy in general.

 

[rcwees]

so the cg is a little leaning forward, based of of what they say, and yea i have a c pack motor and a 1800 mah 3s so yea may be pretty heavy, but i just was wondering if anyone has any experience belly landing the 3d because thats my next maiden. or is it better to do it with a ground takeoff vs hand launch.

 

[trey]

Can you throw up a picture of what you have going on?

 

[rcwees]

yea when i get back from school, the cub was my first build so its really sloppy and has a croocked tail. i was just wondering if someone had a good gear design or something.

 

[trey]

It really shouldn't need landing gear. If the plane will work with them, it will work without them.

It's your plane, you can do it however you want, but I think you are chasing a separate problem.

 

[rcwees]

alr ima just try to hand launch it and just risk it ig