txnbuilder
Active Member
I am in process of riveting the center fuselage, and while I was fitting fitting the center section bulkheads (F-704), I remembered this line in the manual regarding the spacer blocks:
"...The length of these spacers must be 1.438" (1 7/16") to match the thickness of the spar..."
Well, it occurred to me to go measure the wing spars. They are somewhere between 1.444" and 1.450", depending on where I measure. (These measurements are after squeezing together the three pieces that make up the spar).
Also, after measuring my spacers several times, they are more like 1.435"
So, in short, the wing spar is going to be about 1/64" thicker than the space where it is supposed to fit.
The engineer in me wants to believe that when Van's says 1.438", they *must* mean 1.438" +/- some tolerance greater than 0.000" However, I can't get over the fact that 'the hole is smaller than the peg'.
After searching the forums, I can't find anyone complaining about this, so does that mean there will be enough play to wiggle the spar in there when the time comes to bolt the wings on?
Any insights?
Luis
"...The length of these spacers must be 1.438" (1 7/16") to match the thickness of the spar..."
Well, it occurred to me to go measure the wing spars. They are somewhere between 1.444" and 1.450", depending on where I measure. (These measurements are after squeezing together the three pieces that make up the spar).
Also, after measuring my spacers several times, they are more like 1.435"
So, in short, the wing spar is going to be about 1/64" thicker than the space where it is supposed to fit.
The engineer in me wants to believe that when Van's says 1.438", they *must* mean 1.438" +/- some tolerance greater than 0.000" However, I can't get over the fact that 'the hole is smaller than the peg'.
After searching the forums, I can't find anyone complaining about this, so does that mean there will be enough play to wiggle the spar in there when the time comes to bolt the wings on?
Any insights?
Luis