Type designation: M-20 (R-01)
Name: EMESE-B and C
Designer: Ernő RUBIK and Endre JANCSÓ
Class: Training
General arrangement: Strutted high wing, open cockpit, wire braced frame fuselage (B), traditional tail unit
Crew: 1
First flight: Spring, 1936
Manufacturer: MSrE (Technical University's Sportflying Society) workshop
Number of built: 1

Short history:
In 1934 the MSrE decided to develop a new training glider with improved performance to substitute the Hol's der Teufel. It was designated M-20, however as training gliders of that era were classed as B category gliders the nickname EMESE B stuck to it (EMESE is the Hungarian pronunciation of acronym MSrE).
The EMESE B had been crashed in 1937 and its pilot was compelled by the Aero Club to redesign the glider with a steel-tube structure fuselage. The wings of the EMESE B were attached to the plywood covered new fuselage. This version got the name of EMESE C. First flight took place in the autumn of 1937.

Structure:  All wooden (B), wooden with steel tube truss girder fuselage (C).
The double spar wing had streamlined 'V' struts. The wing in front of the fore spar was covered by plywood and behind by fabric.
The fore part of the fuselage consisted of a strong wooden keel and a plywood/fabric covered open nacelle. Behind the wing trailing edge the fuselage was a wire braced flat open frame.
   Tail unit:
The traditionally arranged tail unit was covered by fabric.


Larger picture


Larger picture
Dimensions (EMESE-B):
     Span, m: 12,56
     Area, m2: 17,6
     Aspect ratio: 8,96
     Chord (root), m: 1,5
     Chord (tip), m: 1,35
     Airfoil (root), m: 12%n
     Airfoil (mid-span), m: 12%
     Airfoil (tip), m: ?
     Dihedral, degree: -
     Sweep, degree: 0
     Washout: Aerodynamic
     Span, m: 3,44
     Mean chord, m: 0,66
     Total area, m2: 4,54
     Balancing: None
     Type: None
     Type: None
   Horizontal stabilizer:
     Span, m: 2,47
     Area, m2: ?
     Span, m: 2,47
     Area, m2: ?
     Airfoil: ?
     Balancing: None
     Trim: None
   Vertical stabilizer and rudder:
     Total area, m2: ?
     Rudder area, m2: ?
     Balancing: None
     Length, m: 6,25
     Width, m: 0,6
     Height: 1,27
     Cross section, m2: ?
   Landing gear:
     Type: Skid with rubber rings
   Wing, kg: ?
   Fuselage, kg: ?
   Tail unit, kg: ?
   Empty glider, kg: 120
   Gross, kg: 210
   Ballast, kg: None
   Wing loading, kg/m2: 12
   VNE, km/h: ?
   Max. speed with open airbrakes, km/h: -
   Max. aerotow speed, km/h: -
   Max. winch speed, km/h: ?
   Max. speed in rough air, km/h: ?
   Stall speed, km/h: ?
   Min. sink, m/s (at gliding speed, km/h): 0,8/?
   Best L/D (at gliding speed, km/h): 17/?
Start methods: Bungee, Winch

Origin of data and 3-view drawing:
Jereb Gábor: Magyar vitorlázó repülőgépek, Műszaki Könyvkiadó, 1988, Budapest
(Gábor JEREB: Hungarian Gliders, Technical Publishing House, 1988, Budapest)

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