Will,
We use a spreadsheet from John Wigney to calculate weight and balance. A nice
feature is that it shows how weight and CG changes as fuel is used. We can send
you a copy off list if you like.
We often operate between 1450 and 1500 lbs and are creative with where we place
items for CG purposes. We commonly have a few pounds on the lunch tray and we
use large thin bags to pack clothing beside our legs - on the outside wall
between
the rudder pedal platform and the front of the seats. Sometimes we put
very light items on the shelf of the D panel.
We measured and use additional moment arms for other locations. For example we
use a different arm for items in the wells behind the seat than for items on
the baggage bay. It is just a little more detailed than the factory figures.
We test flew (Monowheel) at differing weights up to 1500 lbs. Andy Drapers
main
concern was strength of landing gear and reducing CG range. We had no problem
except the original fat Monowheel tire rubbed on the brake caliper.
Remember too that you will be landing at lower weight than takeoff because of
fuel
use, so takeoff performance and CG location is more a consideration than landing
performance.
Jim & Heather
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