The Grob G 115 is an advanced general aviation fixed-wing aircraft, primarily used for flight training. The G 115 was first flown in November 1985.
By 1990 the G 115 had orders totalling more than 100 since production began in 1987. The two-seat, side-by-side light aircraft makes extensive use of composite materials in its construction and the resulting smooth finish gives low drag and high efficiency. The production G 115-C is powered by a single 150 hp (112 kW) Lycoming O-320-E2A piston engine driving a constant speed propeller.
The Royal Navy Flying Grading Flight operate the G.115D as the Heron.
Ninety-nine G.115E (at Tutors) were purchased for Air Cadets and University Air Squadrons in the UK. The E variant with a 3-blade variable pitch propeller is in Royal Air Force service as an elementary flying trainer.
G.115E Engine: 1 x 134kW / 180 hp Textron Lycoming AEIO-360-B1F Prop: Hoffman 3 blade CSU Max take-off weight: 990 kg / 2183 lb Empty weight: 690 kg / 1521 lb Wingspan: 10,00 m / 33 ft 10 in Length: 7,79 m / 23 ft 12 in Height: 2,82 m / 7 ft 7 in Wing area: 12,21 sq.m / 129.17 sq ft Max. speed: 270 km/h / 168 mph Cruise speed: 230 km/h / 143 mph Initial climb rate : 1399.61 ft/min / 7.11 m/s Service Ceiling: 4875 m / 16000 ft Range: 1250 km / 777 miles Crew: 2