While doing layouts for the fuselage side skins earlier today, I decided to throw together this little bit of javascript

to help me calculate rivet spacing's. Not everything is a nice multiple of 20 or 40 millimeters.

I have a web server on my home network so I can bring this up in my IPad while I am in the shop.

Enter the distance and the desired rivet spacing. The page will print out the hole locations at or under

the desired rivet spacing.

It should go without saying, but I will say it anyway.  This is what works for me. Use at your own risk.

If something happens to not be right at 20 or 40mm spacing be sure to check the plans very

carefully to make sure that you are not misunderstanding something.

If you use this utility, I would suggest make a copy and putting it on a different server. It can not always

be guaranteed that this file will always be available.from here.

rivet_space.html