Scale RCM 1/3 Scale Champ Build

[Bartman]

So here is the finished version, a lot messing around and redoing things, I'm stopping here. Need to make the clamp for the spring at the tail post and the spring brackets that mount on the rudder. Oh and heat treat the springs.

View attachment 109122

where did you score the scale looking tailwheel?

 

[AKNick]

Thanks.
From what I can tell, the 3200 was used on later models of the Champ, mid 1950's maybe. There was also a Maule brand used. Don't understand the rime or reason for selecting one over the other. Actually started making a 3200 look-a-like but changed after reviewing the service manual.

It's fun doing all that research! From the looks of it, I think the 3200 is a locking tail wheel of sorts. The Previous versions just swiveled. If you look at the new versions, the hub/bearing area is a lot thicker to support bearings and a unique mechanism that when down force is applied or full deflection it will swivel freely. The idea is for pavement and cross wind taxing your tail wont be wandering around. Some models even have a remote lock. The bush planes usually just remove the linkages all together an let that little wheel do what ever the heck it wants. LOL

With your chosen tail wheel it appears you have selected the correct scale appearance, and what a excellent reproduction from the looks of it!

 

[TonyHallo]

where did you score the scale looking tailwheel?

It is a DuBro 200TW.

 

[TonyHallo]

Managed to finish the tail post clamp and rudder arms. Think I may split the cowl into three pieces next.

 

[pawnshopmike]

Managed to finish the tail post clamp and rudder arms. Think I may split the cowl into three pieces next.View attachment 109152

Nice work!!

 

[49dimes]

.

 

[TonyHallo]

Time to split the cowl. The cowl was leveled to the angle of the nose bowl and a laser level was used to lay out the cut line. The nose was removed and began making the flanges for the cowl section. Doing one side at a time, no hurry. A piece of 1/32" ply and pairs of magnets are used to clamp the cut straight. Once the other side is completed, then the bowl flange will be completed

 

[Snoopy1]

Nice job on the tail wheel that is a master piece.
The cowl man it hard enough just doing a standard split but three that has to be so it looks Scale. Done a few my self but really like the way you only split one side at a time good thinking I will have to borrow that idea in a little while when I split the cowl for the extra.

 

[TonyHallo]

Thanks, it was a lot of playing around before I liked it, just like what you got going on with the wing.

 

[Alky6]

Holy cow! Getting caught back up and the work you’re doing is quite incredible! The detail....

How are you planning to temper the spring steel? Quench in oil? How are you heating it up and controlling the temp?