Yakolev Yak-18 ![]()
The initial Yak-18 tandem two-seat version was powered by the 160 hp M-11 engine in a “helmeted” cowling and tailwheel landing gear.
The Yak-18U featured a tricycle landing gear (the main units which retracted forward) and a lengthened front fuselage.
The Yak-18A was a development of the Yak-18U with a 260 hp AI-14R (later 300 hp AI-14RF) engine, NACA-type cowling, enlarged canopy, and dorsal fin extension.
The Yak-18P single seat development of the -18A was built in two versions. One with the cockpit aft of the wing and forward retracting main wheels. The other with the cockpit over the wing and inward retracting main wheels. There was a fuel system for 5 minutes of inverted flight and longer span ailerons.
The Yak-18PM single seat aerobatic version was produced for the 1966 World Aerobatic Championships was powered by an AI-14RF engine and featured reduced dihedral, and the cockpit further aft than the -18P.
![]() Yak-18PM
The Yak-18PS was similar to the -18PM but with tailwheel landing gear.
![]() Yak-18T
Yak-18
Engine: M-11FR, 160 hp / 118kW
Max take-off weight: 1112 kg / 2452 lb
Empty weight: 810 kg / 1786 lb
Wingspan: 10.6 m / 35 ft 9 in
Length: 8.0 m / 26 ft 3 in
Height: 2.2 m / 7 ft 3 in
Wing area: 17.0 sq.m / 182.99 sq ft
Max. speed: 248 km/h / 154 mph
Ceiling: 4000 m / 13100 ft
Range: 1015 km / 631 miles
Crew: 2
Yak-18U
Seats: 2
Yak-18A
Engine: 260 hp AI-14R
Seats: 2
Yak-18A
Engine: 300 hp AI-14RF
Seats: 2
Yak-18P
Seats: 1
Yak-18PM
Engine: Ivchenko AI-14RF, 300 hp
Wingspan: 34 ft 9.25 in / 10.60 m
Length: 27 ft 4.75 in / 8.35 m
MTOW: 2425 lb / 1100 kg
Max level speed: 173 kt / 199 mph / 320 kph
ROC SL: 970 fpm / 600 m/min
Range max fuel: 217 nm / 250 mi / 400 km
Seats: 1
Yak-18T
Engine: 300 hp AI-14RF
Seats: 4
Yak-18T
Engine: 400 hp Vedeneyev M-14P
Seats: 4
![]() Yakolev Yak-18
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