Coarse GF 200

Coarse GF 200
Type:	Business jet
Design country:	BR Germany
Manufacturer:	Gross Aircraft
First flight:	November 26, 1991
Commissioning:	-
Production time:	-
Number of pieces:	1 prototype

The Grob GF 200 was a single-engine, four-seat business aircraft made by the German manufacturer Burkhart Grob Luft- und Raumfahrt , in which a mid-engine powered a tail propeller via a long-distance shaft.

history

Starting in 1987, Grob developed a four- to six-seater touring aircraft in pusher configuration at the Mindelheim-Mattsies airfield , which was later funded by the Federal Ministry for Research and Technology (BMFT) as a technology carrier with DM 5 million . By using new materials, advanced aerodynamics and engine technology, the cruising speed and range of common business aircraft should be exceeded. Originally, the newly developed water-cooled aircraft engine PFM 3200-NO 3 at Porsche was intended as the engine. After Porsche discontinued this type of engine in 1989, the air-cooled Textron-Lycoming TIO-540-AFIA with an exhaust gas turbocharger, throttled to 203 kW, was installed in the GF 200.

At the aviation exhibition in Hanover in 1988 a model was exhibited. After the rollout in May 1991, the prototype with the registration D-EFKH took off on November 26, 1991 for its first flight.

The GF 200 was demonstrated to the public in flight at the ILA 1992 and 1994 in Schönefeld near Berlin and the Aero 1993 in Friedrichshafen.

Problems with the cooling of the engine behind the cockpit led to a change in the air intake. From 1997, Grob revised the previous draft of the GF 250 prototype with a pressurized cabin , so that it could operate at an altitude of 25,000 ft (7,620 m).

The six-seater variant GF 300 with a projected top speed of 450 km / h using a propeller turbine and the GF 350 with two coupled propeller turbines with a top speed of 560 km / h were planned.

construction

The cantilevered low-wing aircraft in composite design has a T-tail , one far down drawn rudder and a retractable tricycle landing gear. The main wheels are electro-hydraulically drawn inwards, the nose wheel is drawn in towards the front. The wing with laminar profile has a curved leading edge, electrically adjustable Fowler flaps and small winglets . The four-seater cabin is accessible through a two-part door on the left side of the fuselage in front of the wing.

The Textron-Lycoming TIO-540-AFIA, located in the middle of the fuselage, drove a three- (Hoffmann) five- or six -bladed (Mühlbauer) variable-pitch propeller behind the tail unit via a wound CFRP remote shaft .

Technical specifications

Parameter	Data
crew	1
Passengers	3
length	8.50 m
span	11.00 m
height	3.3 m
Wing area	12.50 m²
Wing extension	9.7
payload	600 kg
Tank capacity	350 l (in the wing)
Empty mass	1100 kg
Max. Takeoff mass	1700 kg
Cruising speed	388  km / h (210  kn ) (at 75% power)
Minimum speed	103 km / h (56 kn)
Top speed
Summit height	8530 m
Rate of climb	6.5 m / s
Range	2350 km
Engine	a Textron-Lycoming TIO-540-AFIA ; 310  hp (228  kW )
propeller	3- / 5- / 6-blade controllable pitch propeller

Whereabouts

The aircraft is exhibited in the aerospace hall of the Deutsches Museum in Munich.

See also

• List of aircraft types

Web links

Commons : Grob GF 200  - Collection of images, videos and audio files

Individual evidence

1. ↑ ^{a b c d e f g} Günter Brinkmann, Kyrill von Gersdorff, Werner Schwipps: Sport and travel aircraft . In: German aviation . 1st edition. tape 23 . Bernard & Graefe, Bonn 1995, ISBN 3-7637-6110-1 , pp. 229 f., 374 .
2. ↑ ^{a b} Grob GF 200th Deutsches Museum, accessed on September 13, 2017 . 
3. ^ Andrzej Jeziorski: Grob builds variant of GF200. In: Flight International. November 19, 1997, accessed September 13, 2017 . 
4. ↑ Hellmut Penner: Grobs Pusher GF200 . First of a new family? In: aerokurier . No. 9 , 1993, pp. 16-19 .