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The brakes consist of a
single handle, which resembles a bicycle brake mounted
on the control stick. Since there is no nose wheel
steering it is necessary to use differential braking for
steering. In order to taxi straight, both rudder pedals
are neutralized and a quick squeeze of the brake handle
will keep the nose in line. In order to turn, just add
rudder in the desired direction and squeeze a touch of
brake. It's really pretty simple but different from what
most of us here in the USA are used to. I have changed
some of the instruments from Russian to American as the
original airspeed was in kilometers, the altimeter in
meters and millibars and the manifold pressure in
millimeters. On my first couple of flights I used the
Russian instruments, but I feel more comfortable using
knots, feet and inches of mercury. I am using the
Russian tachometer (which reads percentage of RPM
instead of showing the actual revolutions) and the stock
Russian radio, which works great. Some of the compass
markings look a little strange, and the artificial
horizon shows the sky on the bottom instead of the top
like the American instrument.
All the various
printing in the cockpit is in Russian lettering which is
pretty but unintelligible to me. I have installed decals
in English to translate for me.
The Yak is fully
aerobatic, stressed to 7 g's positive and 5 g's
negative, with an inverted fuel system allowing one to
fly inverted for two minutes before running out of gas
(which is supplied from a small reserve tank). The roll
rate is fast and quite impressive if the stick is moved
quickly to either side. Rolls to the right are even
faster since the propeller rotates counter clockwise.
The powerplant is a 360
h.p. Ivchenko M-14P, nine cylinder single row radial.
The aircraft is light with an empty weight of only 2238
pounds. Wing span is short at 30.5 feet. (Nice to have
the extra hangar space) and length is 25.4 feet.



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