*Here is a weight and Balance calculator kindly submitted by Andy
Hollitt*

**Checking the CofG position involves a fairly simple formula and if you
don't like maths, go to the Australian Jabiru website where there's a calculator
to do the work. **

**But what would happen to the CofG if you put a 3Kg tent right at the back
of the tailcone? What about a full 20 Litre plastic jerry can behind the
main tank? Just how much lead is required in the ventral fin to balance at
the forward CofG?**

**To answer these questions you need to get in to moment arms, which seemed
a bit complex to me. So I wrote an Excel spreadsheet to do the calculations,
at the click of a mouse! Note that it only applies to the SK model as it
stands (arms will be different for other models), although it's simple to
modify the spreadsheet formulas. I'm interested in feedback, and can modify
the spreadsheet for other models if emailed a proper W&B sheet.**

**Andy Hollitt**