Setup
For those people that have an OzPrey, the following page has a few suggestions in getting your plane to perform to its desired flight characteristics.
Instructions
Click here to download the instructions 3.9 MB.
Dual Rates
The OzPrey can be a very pitch sensitive plane to fly. Therefore dual rates are necessary. It's recommended that you reduce the elevator throw percentages down to 25% (or less). Depending on my flying mode I have my aileron throw percentages between 55% and 85%. The 55% for the ailerons is good for nice flowing flying while 85% maybe need if you wish to make more aggressive aerobatic moves.
If you have an inexpensive 2 or 3 channel radio you may not have the ability to make these sensitive dual rate adjustments which the OzPrey needs.
Exponential
To make the flying smoother the exponential setting that I have on both my elevator and ailerons ranges between (- 15% to - 20%). This is a personal preference which will change depending on your preference.
The CG
As its outlines in the instructions, it's very important that the centre of gravity (CG) is correct before your first flight. Depending on your build, the OzPrey CG is about 65mm back from the leading edge. Test your plane in a grassy field before your first major flight, allow the opportunity for soft landings while you’re setting up your plane.
Flight characteristics
The OzPrey once dialled in, should be a very stable plane to fly. It has an excellent ability to perform nice slow turns e.g. it shouldn't tip stall during turns, if so you need to examine your CG and also check that your radio settings aren't too sensitive. During dives it should dive steady and straight while its loops should be smooth and controlled.
Recommend flying conditions
It really depends on the amount of lift that your local slope produces. However I have flown the OzPrey in 9knts to 33knts. The slopes that I fly at I find that the OzPrey starts to become really enjoyable in 12knts and beyond (depending on lift).
Structural design
The OzPrey is made fully of EPP with carbon spars which makes it a durable plane. The OzPrey with its EPP construction will survive majority of crashes. However with its weight exceeding 700grams, like all planes which have a nose, it's not designed to be nose dived into the ground. To reduce damage to the nose, make sure that you follow the instructions and strap the fuselage well.