Senior Project: Trainer and Stuka

[bisco]

can you extend them with barbeque skewers?

 

[A2Moonclaw]

I am just going to get new ones. Also, regarding the power system for the Ultramicrobe swapppable Stuka, would a 2826 1000kv work well for it (Ultramicrobe used an 1350kv) and potentially future swappable series builds like the mustang and spitfire? It will be put in the power pod for swapping between planes. I would generally prefer a slow/cruiser plane over a faster one since my field is small, as long as it still handles well. In other words, speed is not a priority.

 

[Mr Man]

Yup!

 

[A2Moonclaw]

Realized I haven't shown off my progress:

 

[bisco]

looking good, well done!

 

[Mr Man]

Nice!

 

[Houndpup Rc]

Realized I haven't shown off my progress: View attachment 254213

Lookin good!

 

[A2Moonclaw]

Just tested all of my electronics and everything is great except the downward throw for the rudder. I am using the throw gauge (low side) to check all the surfaces and the deflection for the down elevator is not large enough, it's off by like 2-3 degrees. Is this fine or is there a way to easily shorten the pushrod? I have my endpoint for that direction set to 120% by the way.

 

[Mr Man]

Just tested all of my electronics and everything is great except the downward throw for the rudder. I am using the throw gauge (low side) to check all the surfaces and the deflection for the down elevator is not large enough, it's off by like 2-3 degrees. Is this fine or is there a way to easily shorten the pushrod? I have my endpoint for that direction set to 120% by the way.

Make a slight V bend in the push rod, that’ll shorten it

 

[A2Moonclaw]

Make a slight V bend in the push rod, that’ll shorten it

But now it doesn't move up far enough. I think I need to move the rod to the outer hold on the servo arm to get more throw both ways, but since the video told me to put them upside, it is going to be very difficult to do unless I just rip off the servo.

 

[Mr Man]

Yeah, You’re gonna have to put it in the outside hole…

 

[AIRFORGE]

But now it doesn't move up far enough. I think I need to move the rod to the outer hold on the servo arm to get more throw both ways, but since the video told me to put them upside, it is going to be very difficult to do unless I just rip off the servo.

Can you move the rod in one hole on the elevator?

 

[A2Moonclaw]

Can you move the rod in one hole on the elevator?

Won't that prevent it from going up enough? Besides, the control horns are made from scratch so I would have to whittle another hole. I think I just need to move the rod out a hole on the control arm, but I have no way of reaching it without ripping something out.

 

[AIRFORGE]

Won't that prevent it from going up enough? Besides, the control horns are made from scratch so I would have to whittle another hole. I think I just need to move the rod out a hole on the control arm, but I have no way of reaching it without ripping something out.

No. It will add more up and down. You will need to adjust center and endpoints as always.
Out on the servo horn increases movement in both directions.
In on the control surface horn increases movement in both directions.
Ripping out the servo or drilling a new hole is entirely up to you.

 

[A2Moonclaw]

No. It will add more up and down. You will need to adjust center and endpoints as always.
Out on the servo horn increases movement in both directions.
In on the control surface horn increases movement in both directions.
Ripping out the servo or drilling a new hole is entirely up to you.

I just ripped out the servo and it all works now.

 

[A2Moonclaw]

With all the electronics shoved forward the CG is an inch too far back, I will try adding a metal plate to the front to make it both stylish and better balanced.

 

[A2Moonclaw]

I am very confused on the wings for the Ultramicrobe Ju87 Stuka. I drew out the score lines to make the gull shape exactly as shown in the plans but they come out angled. Does anyone know if this is intentional or am I looking at this wrong?

 

[Mr Man]

I am very confused on the wings for the Ultramicrobe Ju87 Stuka. I drew out the score lines to make the gull shape exactly as shown in the plans but they come out angled. Does anyone know if this is intentional or am I looking at this wrong?

It’s intentional for the polyhedral. 👍

 

[A2Moonclaw]

Dang, if only i read this five minutes ago before i started cutting things. I made a single cut that goes all the way across and lines up at the end. It looks pretty similar so i dont think it will make much difference.

 

[A2Moonclaw]

Finished the wings. Not too bad, a little rough in some places and the bend is a few degrees short but I think it will be fine (I hope...). Tomorrow I will trim the overhang, get the connected, and start the fuselage.