Dornier Do-28

Dornier Do-28
Državi	Nemčija
Vlogo	STOL lahka letalska letala
Prvi let	29. april 1959
Zgrajena	Neznano

Dornier Do 28 je tipska oznaka, ki obsega dva različna dvomotorna komunalna letala STOL, ki ju proizvaja nemško podjetje Dornier Flugzeugbau GmbH. Večina jih je služila v nemških letalskih silah in Marinefliegerju ter drugih letalskih silah po vsem svetu v komunikacijski in komunalni vlogi. Serija Do 28 je sestavljena iz bistveno drugačnih Do 28 A/B (1959) in Do 28 D Skyservant (1966).

Vir: Dornier Do-28 na Wikipediji

Dornier Do-28 B-1 Skyservant Sprehod naokoli
Fotograf	Isaac Gershman
Lokalizacijo	Neznano
Fotografije	24

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A Tale of Two Aircraft

V Dornier Do 28 family is unique because the name covers two distinct airframes. The Do 28 A/B series was a direct twin-engine evolution of the high-wing Do 27. However, the Do 28 D Skyservant (which includes the B-1 variant in some nomenclature contexts, though typically B-1 refers to the streamlined earlier model) was a total redesign. The Skyservant became the definitive version: a boxy, rugged “flying truck” designed for Short Take-Off and Landing (STOL) operations. It was so reliable that German pilots affectionately nicknamed it the “Bauernadler” (Farmer’s Eagle).

Attribute	Specification (Dornier Do 28 B-1 / D-2 Series)
Vlogo	STOL Utility / Transport / Liaison
Posadke	1 or 2 Pilots
Zmogljivost	Up to 12 Passengers / 2 Stretchers + Medics
Powerplant	2 x Lycoming IGSO-540-A1E fuel-injected engines
Horsepower	290 hp (B-1) to 380 hp (D-2) per engine
Maximum Speed	320 km/h (173 knots / 199 mph)
Stall Speed	70 km/h (38 knots / 44 mph) — Exceptional for its size
Razpon	1,235 km (approx. 767 miles)

Design and STOL Performance

Unconventional Engine Layout: Unlike most twins, the engines are mounted on short stub-wing pylons attached to the lower fuselage. This keeps the center of gravity low, simplifies maintenance, and provides extra lift from the nacelles.
High-Lift Devices: The wings feature full-span fixed leading-edge slats and large double-slotted Fowler flaps. This allows the Skyservant to lift off from “jungle strips” as short as 275 meters (900 ft).
Rugged Landing Gear: The non-retractable tail-wheel undercarriage is built for rough, unprepared fields. The main gear struts are faired into the engine nacelle pylons for structural efficiency.
The “Box” Fuselage: The Skyservant D-series moved to a rectangular cross-section, allowing for a flat floor and massive double doors on the port side, making it easy to load standard cargo pallets or oil drums.

Military and Special Roles

German Military Service: The Luftwaffe and Marineflieger operated over 120 units for liaison, transport, and even maritime pollution control (equipped with Side-Looking Airborne Radar).
The Israeli “Agur”: The Israeli Air Force used the Do 28 (naming it Agur, or Crane) extensively during the Yom Kippur War for light transport and reconnaissance.
Air America: Small numbers of Do 28s were operated by the CIA-linked Air America in Southeast Asia, where their STOL performance allowed them to land at secretive, primitive “Lima Sites” in the mountains of Laos.
Evolution into Turboprop: The airframe was so successful that it eventually evolved into the Dornier 128 and the much larger, highly popular Dornier 228.