For those who have built the flapped version of the Ringmaster 576

[Mike Griffin]

I am now beginning a build of the flapped version of the Ringmaster 576.  After studying the plans I am not sure about the construction sequence of the trailing edge of the wing where the flaps are and how to cut the trailing edge sheeting.  Also, building the formed leading edge with the stub ribs is something I have never done also.

If anyone on here has built this model and could help me with some advice, I would appreciate it.

Thank you
Mike

[John Rist]

I built the electric version.  I did a build thread:                  https://stunthanger.com/smf/gettin-all-amp'ed-up!/ringmaster-576-electric/msg291714/#msg291714

Also their is a construction article on how to build the leading edge.  Hope this helps.

[Mike Griffin]

John this helps a lot.  I may have some questions.

Mike

[Mike Griffin]

John, when you cut the 1/8" thick spar to which you glued the stub ribs, did you cut the spar the exact width as the bottom of the stub ribs and did you bevel the edges of the spar any?  Also do you remember how wide you cut the 1/16th that you bent around the stub ribs?  It appears that the 1/16th formed balsa overhangs the spar by a little where you cut the notches for the ribs.  It also appears you may have built the leading edge in two sections and then joined them together but it looks like you built the rest of the wing in one piece on the rod jig rather than building two sections and then joining the halves together.  Is that right?

I am going to try and duplicate your jig if I can figure out your directions on building it. 

I hope you don't mind me asking these questions.

Mike

[Mike Griffin]

One other question John.  Is cutting the trailing edge sheeting in one piece better than splicing it like the plan shows?

Thank you

Mike

[Perry Rose]

That leading edge is problematic at best as is the carving the flaps. I glued the leading edge pieces to the ribs with an 1/8 spacer and used molded leading edges. The trailing edge I sheeted and cut the flaps out like it was a foam wing. Much simpler. The leading edge is the same for all the ribs.

[John Rist]

John, when you cut the 1/8" thick spar to which you glued the stub ribs, did you cut the spar the exact width as the bottom of the stub ribs and did you bevel the edges of the spar any?  Also do you remember how wide you cut the 1/16th that you bent around the stub ribs?  It appears that the 1/16th formed balsa overhangs the spar by a little where you cut the notches for the ribs.  It also appears you may have built the leading edge in two sections and then joined them together but it looks like you built the rest of the wing in one piece on the rod jig rather than building two sections and then joining the halves together.  Is that right?

I am going to try and duplicate your jig if I can figure out your directions on building it. 

I hope you don't mind me asking these questions.

Mike

I did build the leading edge in two haves and the wing in one piece.  The spar is capped with carbon fiber and is the main load bearing part of the wing.  The rest of your questions I don't remember.   As others suggest built up flaps may be a good deal.   I built mine from a kit provided to me by Pat.   Pretty much built it from the parts in the kit and per the plans.   By the way, per other posts (perhaps on the Brotherhood of the Ring site)  it is stated that it flies as well without flaps as with them.   

[john e. holliday]

Best bet is go to the Brotherhood of the Ring forum or contact Dee Rice.