Hai-Lee
Old and Bold RC PILOT
Maybe it is my Scottish ancestory shining through but I was not happy with the idea of gluing in CF spars in my FB models and then having to cut them out and clean them up if I wanted to reuse them in another model.
Also I wanted a model that I could remove the wings individually for easy storage and transport. Whilst there were other posts showing "Back Pack" versions of various models the wing fitting procedure seemed rather too involved and complex to make in the first place. Extra pieces, Wood, screws, Velcro, and the like just seemed to add weight.
I have had a Bixler or a Bixler clone for over a year but about a month ago I purchased a RochHobby MXS - 3D and suddenly the penny dropped.
Here is my wing fitting and joining procedure, made out of FB and CF only, that I am trying out on my latest experimental build. The build was simple in that you replace the original FB spar with 2 FB spars spaced sufficiently to just allow the CF tube to slide between them. Above and below the CF spar there is a layer of FB top and bottom to reach the desired wing thickness and allow the CF tube to fit snuggly. In addition I fitted a couple of stopper blocks at the travel limit of the CF tube in each wing.
The unfinished wings with the CF spar tube and the unfinished fuselage.
The CF tube fitted to the travel stop in one wing.
The first wing keyed into the fuselage with the CF spar protruding through the fuselage
Remaining wing on the CF spar about to be pushed home into the keyway.
Both wings in position and properly "keyed" into the fuselage.
As viewed from the fuselage nose
Just for your perusal
it works for me!
Have fun!
Also I wanted a model that I could remove the wings individually for easy storage and transport. Whilst there were other posts showing "Back Pack" versions of various models the wing fitting procedure seemed rather too involved and complex to make in the first place. Extra pieces, Wood, screws, Velcro, and the like just seemed to add weight.
I have had a Bixler or a Bixler clone for over a year but about a month ago I purchased a RochHobby MXS - 3D and suddenly the penny dropped.
Here is my wing fitting and joining procedure, made out of FB and CF only, that I am trying out on my latest experimental build. The build was simple in that you replace the original FB spar with 2 FB spars spaced sufficiently to just allow the CF tube to slide between them. Above and below the CF spar there is a layer of FB top and bottom to reach the desired wing thickness and allow the CF tube to fit snuggly. In addition I fitted a couple of stopper blocks at the travel limit of the CF tube in each wing.
The unfinished wings with the CF spar tube and the unfinished fuselage.
The CF tube fitted to the travel stop in one wing.
The first wing keyed into the fuselage with the CF spar protruding through the fuselage
Remaining wing on the CF spar about to be pushed home into the keyway.
Both wings in position and properly "keyed" into the fuselage.
As viewed from the fuselage nose
Just for your perusal
it works for me!
Have fun!