FORCETALLY
Loading the evidence…
Preparing your view.
Preparing your view.
At a glance
Measured figures
ASK 21 · Length
Single source8.35 m (27 ft 5 in)[source]
Bulldog Series 120 · Length
Single sourceConfiguration
| Specification | Schleicher ASK 21 | Scottish Aviation Bulldog |
|---|---|---|
| Type | Two Seater-class Or Club-class sailplane[source]ASK 21 | Basic trainer with aerobatic capability[source]Bulldog |
| National origin | Germany[source]ASK 21 | United Kingdom[source] |
| Manufacturer | Alexander Schleicher GmbH & Co[source]ASK 21 | Beagle Aircraft / Scottish Aviation[source]Bulldog |
| Designer | Rudolf Kaiser |
23 ft 3.06 in (7.0881 m)[source]
Maximum; Bulldog Series 120 · Maximum speed
Single source130 kn (150 mph, 240 km/h)[source]
Bulldog Series 120 · Range
Single source540 nmi (620 mi, 1,000 km)[source]
Bulldog Series 120 · 1 × Lycoming IO-360-A1B6 4-cylinder air-cooled horizontally-opposed piston engine
Single source1 × Lycoming IO-360-A1B6 4-cylinder air-cooled horizontally-opposed piston engine, 200 hp (150 kW)[source]
Bulldog Series 120 · Service ceiling
Single source16,000 ft (4,900 m)[source]
Bulldog Series 120 · 1,034 ft/min (
Single source1,034 ft/min (5.25 m/s)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| — |
| Number built | Over 1000[source]ASK 21 | 328[source]Bulldog |
|---|
| Introduction date | 1979[source]ASK 21 | 1971[source]Bulldog |
|---|
| First flight | February 1979[source]ASK 21 | 19 May 1969[source]Bulldog |
|---|
| Aspect ratio | 16:1[source] | 8.4[source] |
|---|
| Airfoil | FX S02-196 / FX 60-126[source] | NACA 63 2 615[source] |
|---|
| Stall speed | 65 km/h (40 mph, 35 kn)[source] | 54 kn (62 mph, 100 km/h)[source] |
|---|
| Never exceed speed | 280 km/h (170 mph, 150 kn) in smooth air[source] | 185 kn (213 mph, 343 km/h)[source] |
|---|
| g limits | +6.5 -4 at 180 km/h (97 kn)[source] | + 6g - 3g, with no longer than 15 seconds sustained inverted flight.[source] |
|---|
| Maximum glide ratio | 34 at 90 km/h (49 kn)[source] | — |
|---|
| Rate of sink | 0.64 m/s (126 ft/min) at 67 km/h (36 kn)[source] | — |
|---|
| Wing loading | 33.4 kg/m 2 (6.8 lb/sq ft)[source] | 18.2 lb/sq ft (89 kg/m 2 )[source] |
|---|
| Status | — | Active[source]Bulldog |
|---|
| Primary user | — | Royal Air Force[source]Bulldog |
|---|
| Manufactured | — | 1969–1982[source]Bulldog |
|---|
| Developed from | — | Beagle Pup[source]Bulldog |
|---|
| Propellers | — | 2-bladed Hartzell constant speed propeller[source] |
|---|