APCO Aviation NRG Pro II, Manual

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better not to take unnecessary risk and always fly with a safe margin of speed and height
Depending on the power unit geometry, it is possible that after take-off you will notice a
propeller torque (known as P-factor).
It will try to turn you around, so counter-steer with a brake, trimmer set or harness cross-
bracing.
NRG PRO II/NRG XC II'S risers feature two hook in points, to help adjusting your ppg setting
against torque.
When climbing steeply with slow trim settings and high power output beware of the
possibility of stall.
Due to considerable vertical distance between thrust axis and wing chord - the range of
safe power operation is closely connected to your skills and equipment.
Power-unit induced oscillations
:
Certain configurations of engine weight, output and propeller diameter can cause
oscillations, during which the pilot is being lifted to one side by the torque effect, swings
down due to his weight, and then is lifted again and so on.
To avoid this you can:
•
Change the throttle setting.
•
Adjust the cross bracing to counteract the torque (if there is one present).
•
Shift yourself to the other side of the harness and/or change the trimmer setting.
The best method is to fasten opposite cross-bracing, or apply some weight-shift.
Such oscillations usually occur at full power - the greater the engine output and propeller
diameter, the bigger the swings.
In
addition pilot reactions can often be wrong or come too late, increasing the problem
instead of solving it.
In this case the safest way to deal with this question is to close the throttle and release the
brakes.
Less-experienced pilots especially tend to overreact.
This is called a pilot-induced oscillation, and the proven solution is to leave the brakes
alone .
6.3 LEVEL FLIGHT
If you have a variometer or altimeter
– check it regularly.
In level flight it is very easy to start climbing unintentionally.
The
instrument will help you optimize speed and fuel economy.
Of course each flight depends on configuration of your gear, but due to NRG PRO II's
ability to fly safely without constant piloting, it will let you adjust everything to the best
effect.
Good knowledge of weather conditions (e.g. wind at different altitudes) and knowledgeable
use of thermals, convergence or other kinds of lift will help you greatly reduce fuel
consumption and increase flight range.
Of course the engine is
always there to bring you to the right place.
Do not hesitate to thermal with the NRG PRO II in order to win some altitude and spare
fuel - you will be surprised how efficient it is.
Closing the trimmers will make the climb ratio even better.