The PTS is supplied with a 3 blade 10x5 prop.... not a 9x3.
I beg to differ. At least on the one my student had it was
MOST DEFINITELY a 3 blade 9 X 3. Perhaps the supplied blade
was changed at some point in time.
The flywheel helps make the engine easy to tune for the newbie.
Once they have progressed to the point that they are taking off the training aids, it can be removed as well.
But the flywheel does not greatly and adversely impact the plane's flight characteristics. I flew mine for quite a while with the flywheel in place.
That flywheel is two ounces of steel right on the nose of the
plane. To balance he had another 2 ounces of lead in the tail.
Removing the flywheel and the tail weight and putting a good
prop made a HUGE difference.
Im sure some people like this plane but a primary trainer it
is not. Its too fragile and too difficult to fly for a novice.
Mike Hammer