Sauer S 2100 ULT

Sauer S 2100 ULT
Type Horizontally opposed piston aircraft engine
National origin Germany
Manufacturer Sauer Flugmotorenbau GmbH
Major applications Ultralights and homebuilt aircraft
Developed from Volkswagen Wasserboxer engine

The Sauer S 2100 ULT is a turbocharged four-stroke aircraft engine for homebuilt and ultralight aircraft.