Grob Tutor

Grob Tutor
Name	Grob Tutor
Type	Primary trainer
National origin	Germany
Manufacturer	Grob Aircraft
First flight	1995
Introduction	1999
Status	In service
Primary user	Royal Air Force
Number built	119
Developed from	Grob G 115

Grob Tutor. The Grob Tutor is a two-seat, single-engine primary trainer aircraft developed from the earlier Grob G 115 by the German manufacturer Grob Aircraft. It was selected by the Royal Air Force as its standard elementary flying trainer, replacing the Scottish Aviation Bulldog and serving as the introductory aircraft for student pilots at University Air Squadrons and the RAF Central Flying School. The aircraft is known for its robust composite material construction, forgiving flight characteristics, and role in foundational military pilot training across several nations.

Design and development

The design originated as a development of the successful Grob G 115 series, specifically tailored to meet the stringent requirements of the British Ministry of Defence for a new elementary flying trainer. Grob Aircraft utilized advanced composite materials, primarily glass-reinforced plastic, to create a lightweight yet durable airframe capable of withstanding the rigors of ab-initio training. Key modifications from the baseline Grob G 115 included a strengthened landing gear, enhanced cockpit ergonomics for military training, and the installation of a Lycoming AEIO-540 engine. The development program was conducted in close collaboration with the Royal Air Force, leading to the type's formal selection in 1999 following competitive evaluations against other aircraft.

Operational history

Entering service with the Royal Air Force in 1999, the aircraft quickly became the cornerstone of elementary flying training for the RAF Central Flying School, University Air Squadrons, and the RAF Volunteer Reserve. Its primary role is to provide initial screening and basic handling instruction to potential fast-jet, multi-engine, and rotary-wing pilots before they progress to more advanced platforms like the Embraer EMB 312 Tucano and later the Beechcraft T-6 Texan II. Beyond the United Kingdom, the type has been adopted by other air arms including the Royal Malaysian Air Force and the Austrian Air Force for similar training duties. The fleet has accumulated hundreds of thousands of flight hours, forming the first step in the careers of countless military aviators.

Variants

The primary variant is the G 115E, which is the standard model operated by the Royal Air Force. An earlier model, the G 115C, served as the direct precursor with slightly different specifications. While based on the same airframe, the Grob G 120A represents a more advanced, glass cockpit variant developed subsequently for more sophisticated training roles. The Grob G 140 is a further development with increased performance, used by nations like the German Air Force.

Operators

The largest operator is the Royal Air Force, which flies the type across numerous stations including RAF Cranwell, RAF Barkston Heath, and RAF Valley. The Royal Malaysian Air Force employs the aircraft at its flying training school in Alor Setar. The Austrian Air Force also operates a small fleet for pilot screening. Several civilian flying schools and private owners in Europe and North America also utilize earlier models of the Grob G 115 family for general aviation and training purposes.

Specifications (G 115E)

* **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 air-cooled engine, 194 kW (260 hp) * **Propeller:** 3-bladed constant-speed propeller * **Maximum speed:** 270 km/h (170 mph, 150 kn) * **Cruise speed:** 240 km/h (150 mph, 130 kn) * **Stall speed:** 100 km/h (62 mph, 54 kn) * **Range:** 1,000 km (620 mi, 540 nmi) * **Service ceiling:** 4,500 m (14,800 ft) * **Rate of climb:** 5.5 m/s (1,080 ft/min)

Accidents and incidents

The operational history has included several notable accidents. In 2003, an aircraft from the Cambridge University Air Squadron crashed near RAF Wyton, resulting in fatalities. Another significant incident occurred in 2009 involving an aircraft from the Birmingham University Air Squadron which crashed in Leicestershire. In 2015, a trainer operating from RAF Cranwell was involved in a fatal accident in Lincolnshire. These events have been investigated by the UK Air Accidents Investigation Branch, with findings often leading to updates in training procedures and safety directives for the fleet.

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