Burghfield Air Cadets

2402 (Burghfield) Squadron  Air Training Corps

Aviation

The Air Training Corps operates three types of aircraft, these are:

Grob G115 'Tutor'

General characteristics

  • Crew: Two (student & instructor)
  • Length: 7.59 m (24 ft 9 in)
  • Wingspan: 10.0 m (32 ft 8 in)
  • Height: 2.8 m (9 ft 2 in)
  • Wing area: 12.2 m² (131.3 ft²)
  • Empty weight: 690 kg (1,518 lb)
  • Max takeoff weight: 990 kg (2,183 lb)
  • Powerplant: 1× Lycoming O-360-A1B6 4-cylinder air-cooled piston engine, 149 kW (180 hp)

Performance

  • Maximum speed: 240 km/h (130 knots, 150 mph)
  • Range: 1,150 km (621 nm, 719 mi)
  • Service ceiling: 3,050 m (10,000 ft)
  • Rate of climb: 5.33 m/s (1,050 ft/min)
  • Maximum fuel load: 33 gallons (in contrast, this is not enough for some jets to taxi to the end of the runway)

 

Grob G109b 'Vigilant' T Mk.1

General characteristics

  • Crew: Two (student & instructor)
  • Length: 8.1m (26.6ft
  • Wingspan: 17.4m (57.1ft)
  • Height: 1.7m (5.6ft)
  • Max takeoff weight: 908kg (2002lbs)
  • Powerplant: Grob 2500 horizontally opposed 4 cylinder air cooled

Performance

  • Maximum speed: 130kts (below 6500ft up to 850kg)
  • Range: 1,800 km  (1118 mi)
  • Service ceiling: 3,050 m (10,000 ft)
  • Rate of climb: 60 kts (fine pitch) 75kts (coarse pitch)
  • Cruise fuel consumption: 12-15 litres per hour (100ltr tank)
  • Gliding performance:
    • Best gliding ratio 1:28 at 115 km/h
    • Min. sink rate 1.1 m/s at 108 km/h

 

Grob G103A (Twin II Acro) 'Viking' T Mk.1

General characteristics

  • Crew: Two (student & instructor)
  • Length: 8.18m (26.8 ft)
  • Wingspan: 17.5m (57.4 ft)
  • Height: 1.55m (5.1 ft)
  • Max takeoff weight: 625kg (1378 lbs)
  • Powerplant: None, winched launched or areo-tow

Performance: Airframe limitations & speeds

Maximum Speed (VNE) - 119 knots
Maximum Acceleration (98 to 119 knots) - +4.8g
Minimum Acceleration (98 to 119 knots) - minus 2.6g
Maximum Manouevring Speed - 98 knots
Maximum Acceleration (up to 98 knots) - +5.7g
Minimum Acceleration (up to 98 knots) - minus 3.7g
Maximum crosswind component - 11 knots
Maximum speed for winch launch - 65 knots
Winch Launch - 50 to 60 knots
Minimum Sink - Dual -138ft/min at 46 knots
Minimum Sink - Solo - 126ft/min at 43 knots
Best Glide Angle - Dual - 37:1 at 57 knots
Best Glide Angle - Solo - 36:1 at 51 knots
Speed in Circuit - 50 knots
Stalling Speed - Brakes closed - Dual - 41 knots
Stalling Speed - Brakes closed - Solo - 36 knots