Dornier Do-28

Dornier Do-28
Χώρα	Γερμανία
Ρόλο	Ελαφρύ βοηθητικό αεροσκάφος STOL
Πρώτη πτήση	29 April 1959
Χτισμένο	Αγνοώ

Dornier Do 28 is a type designation that comprises two different twin-engine STOL utility aircraft, manufactured by German company Dornier Flugzeugbau GmbH. Most of them served with the German Air Force and Marineflieger and other air forces around the world in the communications and utility role. The Do 28 series consists of the fundamentally different Do 28 A/B (1959) and Do 28 D Skyservant (1966).

Πηγή: Dornier Do-28 στη Wikipedia

Dornier Do-28 B-1 Skyservant με τα πόδια γύρω από
Φωτογράφος	Ισαάκ Γκέρσμαν
Εντοπισμού	Αγνοώ
Φωτογραφίες	24

Dornier Do-28 B-1 Skyservant 02

Dornier Do-28 B-1 Skyservant 01

Dornier Do-28 B-1 Skyservant 03

Dornier Do-28 B-1 Skyservant 04

Dornier Do-28 B-1 Skyservant 05

Dornier Do-28 B-1 Skyservant 06

Dornier Do-28 B-1 Skyservant 07

Dornier Do-28 B-1 Skyservant 08

Dornier Do-28 B-1 Skyservant 09

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A Tale of Two Aircraft

Teh 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)
Ρόλο	STOL Utility / Transport / Liaison
Πλήρωμα	1 or 2 Pilots
Χωρητικότητα	Up to 12 Passengers / 2 Stretchers + Medics
Πλάστης ισχύος	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
Έκταση	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.