HUNGARIAN GLIDERS
1933-2000
Type designation: M-30-C/1s
Name: Super Fergeteg
Designer: Designers of the Hungarian Aeronautical Association
Class: High performance
General arrangement: Shoulder wing, sinle seat, skids and wheel dolly, traditional tail unit
Crew: 1
First flight: February 1954
Manufacturer: Central Workshop of Hungarian Aeronautical Association, Dunakeszi
Number of built: 1



Short history:
Based on the M-30C/1 a new M-30C/1s Super Fergeteg version had been developed for the World Championship held in Leszno in 1954. The glider first flew in February 1954. In spite of her reduced mass compared to that of the M-30C/1, this version proved to be the least successful one.

Structure:  All wooden
   Wing:
The double tapered planform wing had a leading edge with a slight sweepback. On the flapless wing one-piece ailerons were fitted. The wing structere otherwise was similer to that of the M-30C/1.
   Fuselage:
The fuselage had an elliptical cross section and behind the main spar connections was similar to the double-seat versions (M-30B; M-30C; M-30C/1). The cockpit was placed in the fore part of the long fuselage nose and a bubble type canopy was used. In spite of the big canopy the forward visibility - especially during tows - had been limited, and for this reason the nose of the glider was modified in the beginning of the 60s.
The landing gear of the 1954 version consisted of a nose and a tail skid and a double wheel dolly was used for takeoffs. During the modification in the 60s a wheel behind the c.g. was fitted.
   Tail unit:
The tail unit of the version was similar to that of the M-30C/1, however the form of the console on which the horizontal stabilizer had been sitting was modified more than once.




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Dimensions:
   Wing:
     Span, m: 18
     Area, m2: 18,96
     Aspect ratio: 17,1
     Chord (root), m: 1,4
     Chord (tip), m: 0,35
     Airfoil (root), m: NACA 23012
     Airfoil (mid-span), m: NACA 23012
     Airfoil (tip), m: NACA 0009
     Dihedral, degree: 3
     Sweep, degree: ?
     Washout: Aerodynamic and -2 degree geometric
   Aileron:
     Span, m: 4,17
     Mean chord, m: 0,3
     Total area, m2: ?
     Balancing: Inner mass
   Flap:
     Type: None
   Airbrakes:
     Type: Göppingen
     Position (upside/downside): u/d
     Total area, m2: 0,46
     Position, % of chord: 0,458
   Horizontal stabilizer:
     Span, m: 2,55
     Area, m2: 1,47
   Elevator:
     Span, m: 2,55
     Area, m2: 0,7
     Airfoil: NACA 0009
     Balancing: Mass
     Trim: Yes
   Vertical stabilizer and rudder:
     Total area, m2: 1,3
     Rudder area, m2: 0,7
     Balancing: None
   Fuselage:
     Length, m: 8,1
     Width, m: ?
     Height: ?
     Cross section, m2: ?
   Landing gear:
     Type: Original version: Nose and aft skid, wheel dolly; 1962 version: retractable wheel
     Wheel diameter, m: 0,42
Masses:
   Wing, kg: ?
   Fuselage, kg: ?
   Tail unit, kg: ?
   Empty glider, kg: 390
   Gross, kg: 500
   Ballast, kg: -
   Wing loading, kg/m2: 26,4
Speeds:
   VNE, km/h: 250
   Max. speed with open airbrakes, km/h: 250
   Max. aerotow speed, km/h: 130
   Max. winch speed, km/h: 100
   Max. speed in rough air, km/h: ?
   Stall speed, km/h: ?
Performance:
   Min. sink, m/s (at gliding speed, km/h): ?/?
   Best L/D (at gliding speed, km/h): ?/?
Start methods: Winch, Aerotow



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)

Gábor FEKECS E-mail: fekecs.gabor@t-online.hu