Sergei Boriak
Sergei was born in Kazakhstan. He is one
of the most respected aerobatic flight coaches in the world, having
trained the likes of Patty Wagstaff, Gene Soucy, Mike Goulian, Kirby
Chambliss, and Matt Chapman. His accomplishments as a competition pilot
rival any he has had as an instructor, having won the 1984 U.S.S.R.
Aerobatic Championship. He was also the 1986 World Aerobatic Champion
and the 1994 German National Champion. He moved to the U.S. in 1993, and
was the coach of the U.S. Aerobatic Team from 1998-2003. He also
competed on the Aerobatic Grand Prix circuit from 1996-2000.
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THE PLANE
Sukhoi SU-31
The
Sukhoi SU-31 is the most agile and powerful aerobatic aircraft in
production today. This single-seat aircraft has the highest
power-to-weight ratio of any piston engine aircraft, giving the SU-31
truly unbelievable sustained vertical line.
The engine, the famous Vedeneyev M14,
is a nine-cylinder geared radial engine. In the normal "P"
version, it produces 360 hp+. The "PF" version produces 400
hp+. The M14 has oil and fuel systems that are completely functional
at all attitudes and power settings, and a fully automatic mixture
control. The geared engine spins a 100", three-blade, composite
propeller turning at two-thirds the engine RPM while producing maximum
horsepower and thrust at all power settings. Some versions of the M14P
are used to power light-weight generating plants and are expected to
run for 20,000 hours without maintenance. This gives you an indication
of the engine's superior reliability.
SPECIFICATIONS
Length - 22.7 ft.
Height - 9.1 ft.
Wingspan - 27 ft.
Engine (Radial) - 360+ hp
Empty Weight - 1,650 lbs.
Max Load - 770 lbs.
Gross Weight - 2,420 lbs.
Fuel, fuselage - 129.3 lbs., 20.5 gals.
Fuel, wing - 351.5 lbs., 55.8 gals.
Fuel, total - 480.8 lbs, 76.3 gals.
Oil - 20 lbs.
G limits - +12 -10
Spar factory test - +/- 23
Roll rate - 400° sec.
Rate of climb - 3,543 fpm
High speed - 185 mph
Long range - 130 mph
Stall speed - 66 mph
Vne - 279 mph
Vmo - 241 mph
Va - 229 mph
Takeoff run (min wt) - 363 ft.
See more exciting air show
photos in the AirVenture
photo gallery.
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