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Robin DR400


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The Robin DR400 is a wooden sport monoplane, conceived by Pierre Robin and Jean Délémontez. The Robin DR400 first flew in 1972 and was still in production in 2008. It has a tricycle undercarriage, and can carry four people. The DR400 aircraft have the 'cranked wing' configuration, in which the dihedral angle of the outer wing is much greater than the inboard, a configuration which they share with Jodel aircraft. This model is considered easy to fly by many and quiet during flight due to its wooden frame.

Development

The Robin DR300 series were developments of the earlier DR.221 Dauphin and DR.250 Capitaine with a tricycle landing gear. The first variant was the DR340 Major, a tricycle landing gear version of the DR250 Capitaine which first flew on 27 February 1968, followed on 21 March 1968 by the DR315 Petit Prince, a tricycle landing gear version of the DR221 Dauphin. The DR315 was later replaced by the DR300. In 1972 an improved version, the DR400 was introduced with a forward-sliding canopy.

Design

The wing is a distinctive feature of the Robin DR400, and is what immediately separates this aircraft visually from other similar light aircraft. It is a derivative of the earlier Jodel designs, is light, stiff and strong, with the dihedral of the outer panels imparting substantial lateral stability in flight. Being fabric covered, it presents a smooth surface to aid airflow, unhindered by the typical overlapping panels or rivets found on metal aircraft. The secret to the DR400's relatively high performance lies in the pronounced washout in the outer panels. Since they have a lower angle of attack to the airflow than the centre section, they create less drag in cruise flight. This characteristic also imbues rather benign stall behavior and the DR400 consequently does not suffer from the need to install retro-fixes like leading edge stall strips.

Variants

DR

.315 Petit PrinceA development of the earlier DR221 with a tricycle landing gear and powered by a 115hp Lycoming O-235-C2A engine.

DR

.330An experimental DR.315 fitted with a 130hp Continental O-240-A engine in 1970.

DR

.340 MajorA development of the earlier DR250 with a tricycle landing gear and powered by a 140hp Lycoming O-320-E2A engine.

DR

.360 ChevalierDR.340 with a solid cabin roof and a 160hp Lycoming O-320-D2A engine.

DR

.300-108 2+2Replacement for the DR.315 with improved landing gear and either two or four seats.

DR

.300-120Four-seat DR.300 with a 120hp Lycoming O-235-L2A engine.

DR

.300-140DR.300 with a 140hp Lycoming O-235-E2A engine.

DR

.300-180DR.300 with a 180hp Lycoming O-360-A3A engine.

DR

.300-180RGlider tug version of the DR.300-180.

DR

.400-100 CadetTwo-seat version of the DR.400-108

DR

.400-108 Dauphin 80 2+2DR.300-108 with forward-sliding canopy

DR

.400-120 Petit PrinceDR.300-120 with forward-sliding canopy

DR

.400-120 Dauphin 2+2Petit Prince with extra cabin windows.

DR

.400-125DR.400-120 with a 125hp Lycoming O-235-F engine

DR

.400-140 EarlDR.300-140 with forward-sliding canopy

DR

.400-140B Major 80DR.400-140 with a 160hp Lycoming O-320-D2A

DR

.400-160 ChevalierOriginal designation for the DR.400-140B

DR

.400-180 RegentDR.300-180 with forward-sliding canopy, later models have extra cabin windows.

DR

.400-180 Regent IIIA ''Nouvelle Generation'' DR.400

DR

.400-180R RemorqueurDR.400-180 glider tug with clear canopy

DR

.400-180RP Remo 212DR.400-180R fitted with a 212hp Porsche PFM 3200 engine and 3-bladed propeller