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At a glance
Measured figures
L-59E · Length
Single source12.20 m (40 ft 0 in)[source]
U-2S · Length
Single sourceConfiguration
| Specification | Aero L-59 Super Albatros | Lockheed U-2 |
|---|---|---|
| Type | Military trainer aircraft COIN[source] | High-altitude reconnaissance aircraft[source] |
| Manufacturer | Aero Vodochody[source] | Lockheed Skunk Works[source] |
| Status | Out of production, in service[source] | In service[source] |
| Primary users | Czech Air Force Egyptian Air Force Tunisian Air Force[source] |
63 ft 0 in (19.20 m)[source]
Maximum; L-59E · at 5,000 m (16,000 ft)
Single source865 km/h (537 mph, 467 kn) at 5,000 m (16,000 ft)[source]
Cruise; U-2S · ) at 72,000 ft (22,000 m
Single sourceCruise; U-2S · Cruise speed
Single sourceCruise; U-2S · Mach 0.715 (
Single sourceMach 0.715 (412 kn; 470 mph; 760 km/h) at 72,000 ft (22,000 m)[source]
U-2S · Endurance
Single source12 hours[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
United States Air Force Central Intelligence Agency (historical) NASA Republic of China Air Force (historical)[source] |
| Number built | 80[source] | 104[source] |
|---|
| Manufactured | 1986–1996[source] | 1955–1989[source] |
|---|
| First flight | 30 September 1986[source] | 1 August 1955 ( 1955-08-01 )[source] |
|---|
| Developed from | Aero L-39 Albatros[source] | — |
|---|
| Variant | Aero L-159 ALCA[source] | — |
|---|
| Fuel capacity | 1,537 L (406 US gal; 338 imp gal) including tip tanks[source] | 2,950 US gal (2,460 imp gal; 11,200 L)[source] |
|---|
| Stall speed | 185 km/h (115 mph, 100 kn) (flaps down)[source] | 65 kn (75 mph, 120 km/h)[source] |
|---|
| Guns | one GSh-23L cannon in under-fuselage pod[source] | — |
|---|
| Hardpoints | four underwing hardpoints with a capacity of inner hardpoints 500 kg (1,100 lb)capacity, outer hardpoints 250 kg (550 lb)[source] | — |
|---|
| Country of origin | Czechoslovakia[source]Inventory Origin column; table 1, row 26, cell 2; revision 1374778711; retrieved 2026-10-01 | — |
|---|
| National origin | — | United States[source] |
|---|
| Designer | — | Clarence "Kelly" Johnson[source] |
|---|
| Introduction date | — | 1956[source] |
|---|
| Capacity | — | 5,000 lb (2,300 kg) payload[source] |
|---|
| Airfoil | — | root: NACA 63A409 ; tip: NACA 63A406[source] |
|---|
| Time to altitude | — | 60,000 ft (18,000 m) in 12 minutes 30 seconds[source] |
|---|
| Lift-to-drag | — | 25.6[source] |
|---|
| Wing loading | — | 40 lb/sq ft (200 kg/m 2 )[source] |
|---|
| Thrust/weight | — | 0.425[source] |
|---|
| Fuel consumption | — | 910 lb/h (410 kg/h) in cruise[source] |
|---|