HUNGARIAN GLIDERS
1933-2000
Type designation: R-22SV
Name: Super Futár (C Futár)
Designer: Ernő RUBIK
Class: High performance
General arrangement: Cantilever mid-wing, closed cockpit, retractable wheel, traditional tail unit
Crew: 1
First flight: April 1958
Manufacturer: Sportárutermelő V., Esztergom (former AeroEver Ltd.)
Number of built: 10



Short history:
The C Super Futár was a direct descendant of the R-22SV B Super Futár. This version first flew at April 1958.

The R-22SV C Super Futár was licensed for winch, high-winch and aerotow launching as well as basic aerobatics and cloud flying.

The most remarkable flights of the R-22SV C Super Futár:

Distance on triangle, 306 km, Nándor OPITZ, 1959.
Height gain, 4500 m, Nándor OPITZ, 1960.

Structure:  All wooden
   Wing:
For the "C" version the R-22SV B Super Futár wings were adopted.
   Fuselage:
The outlines of the fuselage changed compared to the "B" version. The canopy was fitted more smoothly into the front part of the fuselage. In this respect the glider resembled more to the R-22 Futár. The fuselage structure of the "C" version resembled more to that of the Futár as well. Instead of the fore skid the bottom of the fuselage's front part was strengthened and a wearing-plate was fitted. The wheel also changed. A retractable wheel was used with rubber springs. In retracted position one third of the wheel protruded from the fuselage bottom line. During launches and the glider running on the lowered landing gear high angle of attack were encountered on the wings and the ailerons were ineffective as long as the tail remained on the ground. Due to the same reason a well flared cross-wind landing was a bit tricky. However it was possible to land with retracted wheel, the bottom of the fuselage was stressed for such loads.

Instead of the high-winch hooks on both sides of the fuselage a hook was fitted into the wheel casing.
   Tail unit:
The form and structure of the horizontal tail surfaces were also modified and a foldable solution, similar to the one used on the R-22 Futár was adopted. The elevator was mass-balanced and had differential deflections. The "pull-up" deflection was two times as that of the "push-down" deflection.



Larger picture | Larger picture


Dimensions:
   Wing:
     Span, m: 15,7
     Area, m2: 13,5
     Aspect ratio: 18,25
     Chord (root), m: 1,15
     Chord (tip), m: 0,45
     Airfoil (root), m: Gö 549 mod
     Airfoil (mid-span), m: Gö 549 mod
     Airfoil (tip), m: W-192
     Dihedral, degree: 2,5
     Sweep, degree: -1
     Washout: Aerodynamic and -3 degrees geometric
   Aileron:
     Span, m: 3,8
     Mean chord, m: 0,225
     Total area, m2: 1,83
     Balancing: Aerodynamic
   Flap:
     Type: None
   Airbrakes:
     Type: Göppingen
     Position (upside/downside): u/d
     Total area, m2: 0,495
     Position, % of chord: 0,42
   Horizontal stabilizer:
     Span, m: 2,95
     Area, m2: 1,461
   Elevator:
     Span, m: 2,95
     Area, m2: 0,56
     Airfoil: Symmetrical
     Balancing: Aerodynamic
     Trim: Yes
   Vertical stabilizer and rudder:
     Total area, m2: 1,267
     Rudder area, m2: 0,667
     Balancing: None
   Fuselage:
     Length, m: 6,48
     Width, m: 0,6
     Height: 0,97
     Cross section, m2: 0,52
   Landing gear:
     Type: Retractable
     Wheel diameter, m: 0,26
Masses:
   Wing, kg: 127
   Fuselage, kg: 91
   Tail unit, kg: 12
   Empty glider, kg: 240
   Gross, kg: 340
   Ballast, kg: None
   Wing loading, kg/m2: 25,2
Speeds:
   VNE, km/h: 220
   Max. speed with open airbrakes, km/h: 220
   Max. aerotow speed, km/h: 130
   Max. winch speed, km/h: 80
   Max. speed in rough air, km/h: ?
   Stall speed, km/h: 62
Performance:
   Min. sink, m/s (at gliding speed, km/h): ?/65
   Best L/D (at gliding speed, km/h): 28/75
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