Post by paul45120 on Oct 22, 2011 1:17:28 GMT 1
Well guys I think I finally figured it out.
A little back story and info first. My plane is no beauty queen. It's been crashed and smashed several times. In fact some would say it's ugly.
It's put together with bits and pieces of Cub parts along with lots of glue, tape, aluminum and screws.
For power it has a 2100ma battery, 40 amp ESC, and an E-Fiight Power 10 motor with 9x6 MAS prop.
Radio and tx are Spectrum DX8 and AR8000. Tail feathers are made from coragated plastic sign material. Landing gear and battery box cover is made from aluminum. Wheels are 3" super lite foam spokes.
There is also some carbon fiber here and there as well as popsicle sticks for reinforcements.
The thing is a "flying brick" at 42oz.
It got to point that landings and ROG take offs were certain to end in a "nose over".
The added weight combined with the taller wheels and drag when touching down would pull the nose down.
My solution was to lower the height of the landing gear and to move the axle foreward thus moving the "pivot" lower and foreward.
On a stock Cub landing gear the fuse is 3" off the ground at the gear. I made mine 2 3/4" at this point with the 3" wheels and moved the axle foreward 7/8". I bolted the wheels right to the aluminum struts whitch is screwed to the aluminum battery box cover.
As a test today I ran out a battery in the yard running figure 8s and such. No nose overs and I was really trying to get it to flip.
I then flew a couple batterys worth of ROG takeoffs and landings. These were grass landings on anywhere from 1 1/2" (the yard/runway) to almost 5" grass (the fresh cut hay field)
I didn't any nose overs. ;D
I'll try and get some pixs tomorrow and post them.
A little back story and info first. My plane is no beauty queen. It's been crashed and smashed several times. In fact some would say it's ugly.
It's put together with bits and pieces of Cub parts along with lots of glue, tape, aluminum and screws.For power it has a 2100ma battery, 40 amp ESC, and an E-Fiight Power 10 motor with 9x6 MAS prop.
Radio and tx are Spectrum DX8 and AR8000. Tail feathers are made from coragated plastic sign material. Landing gear and battery box cover is made from aluminum. Wheels are 3" super lite foam spokes.
There is also some carbon fiber here and there as well as popsicle sticks for reinforcements.
The thing is a "flying brick" at 42oz.
It got to point that landings and ROG take offs were certain to end in a "nose over".
The added weight combined with the taller wheels and drag when touching down would pull the nose down.
My solution was to lower the height of the landing gear and to move the axle foreward thus moving the "pivot" lower and foreward.
On a stock Cub landing gear the fuse is 3" off the ground at the gear. I made mine 2 3/4" at this point with the 3" wheels and moved the axle foreward 7/8". I bolted the wheels right to the aluminum struts whitch is screwed to the aluminum battery box cover.
As a test today I ran out a battery in the yard running figure 8s and such. No nose overs and I was really trying to get it to flip.
I then flew a couple batterys worth of ROG takeoffs and landings. These were grass landings on anywhere from 1 1/2" (the yard/runway) to almost 5" grass (the fresh cut hay field)
I didn't any nose overs. ;D
I'll try and get some pixs tomorrow and post them.