Official Nexa L-19 Bird Dog 1720mm ARF Discussion Thread

[Showlinks]

I'm curious, would a slighter taller tail wheel help as well or will that present other issues?

[Warbird51]

That is another way to reduce the P-factor effect until the tail come up. We will try with shortening the gear height by about 1” and test it out on Saturday. I am not sure if flying off grass would help either. I will re/bend the gear to reduce the height without cutting the gear legs.

[Showlinks]

I've been researching taildragger ground handling issues and there's a debate whether to use toe-in or toe-out on front wheels to improve ground handling. Ive always set my planes up straight ahead. There doesn't seem to be agreement. In fact, in the end, it sounds like different planes like different toe-in or toe-out. Given your experience, I might try some mild toe-out and see how it handles some groundhandling experiments before flight. After installation, my L19 landing gear has considerable toe-in out of the box.

Just thinking out loud. Looking forward to hearing others experiences with first flights, particularly ground handling.

[Warbird51]

My experience has been either some toe in or straight. Tie out has been worse in my 54 years of modeling.

[herkybird]

Has anyone had an issue with the cowl hitting the recommended admiral GP10 5030-400kv motor?
I am using the recommended 131mm measurement distance and the body of the motor is hitting the cowl.
Any suggestions or photos?

[gbruce]

I suppose making a model compatible with Gas, glow and electric power comes with a few compromises to structural design.

😁

[herkybird]

O-1 Bird Dog “Little Puff”
Finished the O-1 build. Built as an electric with the recommended Admiral setup from Motion.
Livery is the “Little Puff” that had a M-60 mounted behind the pilot.
3D printed rockets and lights added for some scale looks.

[asesso]

When mounting the motor should the distance from the firewall called for in the manual be the same at all four corners of the motor mount

[Doug Wagner]

When mounting the motor should the distance from the firewall called for in the manual be the same at all four corners of the motor mount

The distance on my instructions was from the firewall to the backside of the prop.
That said, since an angle down and to the right is built into the firewall, the four corners of the motor mount should be equidistant from the firewall to maintain that built in angle.

[gbruce]

Any success in taming the take off roll?

was there no testing done before the release of this model by the manufacturer??

Bruce

[pkrieschen]

Okay, I'm confused at page 1. How to position the plywood motor mount? The hole is not centered on the ply. Dos the less space between the top of the hole and the top of the ply mount go up?