Grob Tutor T1

Grob Tutor T1. The Grob Tutor T1 is a two-seat, side-by-side configuration, single-engine piston aircraft used for elementary flying training. Manufactured by the German company Grob Aircraft, it was selected by the Royal Air Force to replace the aging Scottish Aviation Bulldog fleet. The aircraft is renowned for its robust composite material construction, excellent visibility, and forgiving flight characteristics, making it an ideal platform for initial military flight instruction.

Design and development

The Tutor T1 emerged from the earlier Grob G 115 series, a successful civilian training aircraft developed in the 1980s. The design was heavily modified to meet the specific requirements of the Ministry of Defence (United Kingdom), including the incorporation of a Lycoming AEIO-540 engine for enhanced performance. A key feature is its airframe constructed primarily from glass-reinforced plastic, which offers high strength and corrosion resistance. The development program, which included rigorous evaluation against other contenders, was managed by Airwork Services under a Private Finance Initiative contract to provide a complete training service to the RAF. The cockpit layout, with its side-by-side seating, facilitates direct instructor interaction and is equipped with modern avionics and instrument flight rules capability.

Operational history

The Tutor T1 entered service with the Royal Air Force in 1999, initially operated by No. 1 Elementary Flying Training School at RAF Cranwell. Its primary role is to conduct elementary flying training for RAF, Royal Navy, and Army Air Corps student pilots, as well as for members of the University Air Squadrons and the Air Experience Flights of the Air Training Corps. The fleet is operated under the Military Flying Training System contract by Babcock Mission Critical Services, formerly known as Ascent Flight Training. Beyond routine training, the aircraft is a familiar sight at British airshows, often flown by the RAF Aerobatic Team, and has been used for aerial reconnaissance support during events like the 2012 Summer Olympics in London.

Variants

* G 115T – The original company designation for the military trainer variant developed for the RAF. * Tutor T1 – The designation used by the Royal Air Force for its 119-strong fleet. All are essentially to the same standard, though some received minor avionics updates during service. * Grob G 115EG – An export variant demonstrated to several international air forces, including the German Air Force, but no large-scale orders materialized. The core airframe has also served as the basis for other Grob models like the Grob G 120.

Specifications (T1)

* **Crew:** 2 (student and instructor) * **Length:** 8.00 m (26 ft 3 in) * **Wingspan:** 10.00 m (32 ft 10 in) * **Height:** 2.82 m (9 ft 3 in) * **Empty weight:** 930 kg (2,050 lb) * **Max takeoff weight:** 1,200 kg (2,646 lb) * **Powerplant:** 1 × Lycoming AEIO-540 six-cylinder, horizontally opposed, air-cooled, fuel-injected piston engine, 194 kW (260 hp) * **Propeller:** 3-bladed constant-speed propeller * **Maximum speed:** 270 km/h (170 mph, 150 kn) * **Cruise speed:** 246 km/h (153 mph, 133 kn) * **Stall speed:** 102 km/h (63 mph, 55 kn) * **Range:** 1,000 km (620 mi, 540 nmi) * **Service ceiling:** 4,000 m (13,000 ft) * **Rate of climb:** 5.1 m/s (1,000 ft/min)

Operators

* United Kingdom – The primary and only major military operator. The fleet is used by the Royal Air Force, with aircraft assigned to stations including RAF Cranwell, RAF Barkston Heath, RAF Church Fenton (until its closure), and RAF Leeming. The aircraft are also flown by the Royal Navy and British Army under the joint training scheme.

Category:Military trainer aircraft 1990–1999 Category:Grob aircraft Category:Single-engined tractor aircraft Category:Aircraft first flown in 1995