Use the "Top of rear fuselage tail down 1000:51". It is a good idea to
cut this angle out of cardboard or plywood and keep it for future W&B
purposes. The Standard Jantar manual tells us to "level the cord
line". OK, fine, now how do we do that? The only way I could figure
was to make a full template from a large piece of cardboard, made to
fit the root rib with wing removed, then scribe the cord line (exact
leading edge to trailing edge).Then raise this cord line 8" and mark a
"raised" cord on top of the template. Then cut along the raised cord
line, so's I had a place to put my bubble level. Assemble the bird,
slip on the template, raise the tail to achieve bubble level on the
"raised" cord line. Wow, thanks for making it sooooo easy PZL. After
going through all this........................make a simple triangle
to go on the top aft boom, that shows bubble level when the ship is in
the proper position.
JJ