RE: World Models Mach I
Jaybo,
I actually do not own one but have flown several with students and I will say they fly well. Very stable and can do nice aerobatics when you are ready. Plus the price is right.
I have not seen the new manual, but the older ones do not tell you to epoxy the wing center joint at the root ribs but to only epoxy the joiner into the wings. Although it looks as though you already have the wing together, I will ask if you did epoxy the joint at the ribs.
We had one that only did the joiner and while I was training him he got inverted and became disoriented, I took control and righted the plane only to have the wings fold up. Upon inspection we noticed no epoxy on the ribs at the joint. After looking through his manual it did not show or explain to do this. After the crash and inspection we walked to the other end of the field to the LHS and bought another and built it right then and there. After the epoxy had a chance to harden overnight we flew the heck out of it.
The next one we checked over had the same issue. We got a hold of some wide carbon tape and trimmed the covering back and epoxied the tape on. That plane has had the heck flown out of it and has stood up well.
We had another student misjudge his landing and very calmly plant it into the top of a tree. After we got it down only the covering needed repair. This plane also still fies do this day.
All of these were last years model when they were mainly yellow and not the blue color they are now
All in all a very good plane which can take some abuse