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Aviation / Aerospace

Focke-Achgelis Fa 269


VTOL / Tiltrotor Fighter Concept [ 1944 ]



The Focke-Achgelis Fa 269 VTOL aircraft was a pure wartime concept intended as a point defense fighter for Germany - it came to nothing.



Authored By: Staff Writer | Last Edited: 11/18/2017 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

National flag graphic Image from the Public Domain.
GO TO SPECIFICATIONS [+]
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Focke-Achgelis was founded prior to World War 2 in 1937 and marked a partnership between Heinrich Focke and Gerd Achgelis. Prior to this, the duo teamed to produce the Focke-Wulf Fw 61 helicopter of which two were built and found success as technology demonstrators. The new joint venture ultimately realized the Fa 223 "Drache" ("Dragon") helicopter of 1941 and some twenty of this twin-rotor system were produced for Luftwaffe service in the Grand War. That same year, Focke-Achgelis was approached to conduct a design study for a point defense fighter to serve the Luftwaffe while incorporating helicopter elements to fulfill a "Vertical Take-Off and Landing" (VTOL) quality.

The VTOL aircraft concept had intrigued aviation engineers and warplanners alike for some time due to their need for little-to-no runway space. The new design would incorporate the vertical capabilities of a helicopter with the forward performance of a frontline fighter that would come as nasty shock to Allied fighters and bombers encroaching on German airspace. Focke-Acheglis designers returned with a unique take on the VTOL concept using a tilt-rotor arrangement. A rather-traditional fuselage was used with heavy glazing at the cockpit and the nose for good vision. A fixed, mid-wing monoplane planform would be used to control the wing-mounted main rotor units. At the rear would be a highly traditional, single-finned tail unit.

The key quality of the aircraft - designated as "Fa 269" - was its wing-mounted, three-bladed propeller units that sat on "variable-pitch" stems. When landing or taking off, these units would be turned downward. When moving into the forward-flight phase, these units would take their usual place ahead of the wing leading edge. To provide the needed clearance for the down-turned rotors, landing gear legs of considerable length would be needed - these giving the Fa 269 a rather cumbersome appearance when on the ground or hovering. The legs were, however, made retractable into the design to promote better aerodynamics for the forward-flight envelope. Physical design specifications included an overall length of 29.2 feet with a wingspan of 32.8 feet. Proposed armament was 2 x 30mm Mk 108 cannons.©MilitaryFactory.com
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Power would come from a single BMW 801 series air-cooled, radial piston engine buried within the aft section of the fuselage. This engine was already being fitted to several German warplanes of the conflict and outputted between 1,550 and 2,000 horsepower. Nearly 30,000 units were made during the war. One of the best-known applications of the BMW 801 became the classic Focke-Wulf Fw 190 fighter. Because of the BMW engine's placement aft of the cockpit, drive shafts were be employed to connect the engine to the wing-mounted rotors with gearboxes used to managed each system. An estimated maximum speed of 355 miles per hour was reported.

In any event, the Fa 269 never got "off the ground". Work was commencing rather well when the development facility was directly hit by Allied bombs during a raid. Reportedly, a full-size mockup was completed as were some of the drive components while much data had already been collected to prove some of the concepts sound. This major setback proved a catastrophic and insurmountable delay leading to the product's formal cancellation in 1944.©MilitaryFactory.com
Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.
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Specifications



Service Year
1944

Origin
Nazi Germany national flag graphic
Nazi Germany

Status
CANCELLED
Development Ended.
Crew
1

Production
0
UNITS


Focke-Achgelis - Nazi Germany
(View other Aviaton-Related Manufacturers)
National flag of modern Germany National flag of Nazi Germany Nazi Germany (cancelled)
(OPERATORS list includes past, present, and future operators when applicable)
✓ Air-to-Air Combat, Fighter
General ability to actively engage other aircraft of similar form and function, typically through guns, missiles, and/or aerial rockets.
✓ X-Plane (Developmental, Prototype, Technology Demonstrator)
Aircraft developed for the role of prototyping, technology demonstration, or research / data collection.


Length
29.3 ft
(8.93 m)
Width/Span
32.8 ft
(10.00 m)
(Showcased structural values pertain to the base Focke-Achgelis Fa 269 production variant)
Installed: 1 x BMW 801 air-cooled radial piston engine driving 2 x three-bladed variable-pitch main rotors.
Max Speed
354 mph
(570 kph | 308 kts)


♦ MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
♦
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030


(Showcased performance specifications pertain to the base Focke-Achgelis Fa 269 production variant. Performance specifications showcased above are subject to environmental factors as well as aircraft configuration. Estimates are made when Real Data not available. Compare this aircraft entry against any other in our database or View aircraft by powerplant type)
PROPOSED:
2 x MK 108 cannons


Supported Types


Graphical image of an aircraft automatic cannon


(Not all ordnance types may be represented in the showcase above)
Hardpoint Mountings: 0


Fa 269 - Base Series Designation


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