Letov S-18

Trainer Biplane

Letov S-218, Czechoslovak Army Air Force, 10E,c/n 50, Letecke Muzeum Kbely © Karsten Palt
Photo ©: Karsten Palt
The Letov S-18 is a single-engine two-seat trainer biplane aircraft produced by the Czechoslovak manufacturer Letov.
The version S-118 was powered by a Walter NZ 85 radial engine with 85 hp (63 kW). The S-218 was a redesign with new fuselage with a steel tube frame. It was powered by a Walter NZ 120 engine with 120 hp (89 kW). Approx. 30 S-218 were also license built in Finnland. These aircraft were powered by a 145 hp (108 kW) Siemens SH 14 / Bramo 314 engine.
Propulsion1 Radial Engine
Engine ModelWalter NZ-60
Engine Power44 kW59 hp
max. Cruise Speed106 km/h57 kts
  66 mph
Speed141 km/h76 kts
  87 mph
Service Ceiling3.500 m11.483 ft
Range324 km175 NM
201 mi.
Empty Weight345 kg761 lbs
max. Takeoff Weight550 kg1.213 lbs
Wing Span10,00 m32 ft 10 in
Wing Area16,3 m175 ft
Length6,68 m21 ft 11 in
Height3,10 m10 ft 2 in
First Flight1925
Production Statusout of production
Production Range1926-1933
Total Production> 115
Data for (Version)Letov S-18
VariantsS-118, S-218