The Teichfuss Borea or LT.35 Borea was an Italian high performance
glider
Glider may refer to:
Aircraft and transport Aircraft
* Glider (aircraft), heavier-than-air aircraft primarily intended for unpowered flight
** Glider (sailplane), a rigid-winged glider aircraft with an undercarriage, used in the sport of glidin ...
designed by Luigi Teichfuss. It was completed by 1943 but never flew and the sole example was destroyed during the
German
German(s) may refer to:
* Germany (of or related to)
**Germania (historical use)
* Germans, citizens of Germany, people of German ancestry, or native speakers of the German language
** For citizens of Germany, see also German nationality law
**Ger ...
occupation of Italy.
Design and development
The Borea was the last Teichfuss glider to be completed. It was a two-seat aircraft, designed primarily for record breaking, a
cantilever
A cantilever is a rigid structural element that extends horizontally and is supported at only one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached. Like other structural elements, a canti ...
mid-wing
A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes.
A monoplane has inherently the highest efficiency and lowest drag of any wing confi ...
machine with a long span, strongly straight tapered
gull wing, ending in elliptical tips. The inner sections of the wing, about one third of the span, had about 10° of
dihedral but the outer sections none.
Aileron
An aileron (French for "little wing" or "fin") is a hinged flight control surface usually forming part of the trailing edge of each wing of a fixed-wing aircraft. Ailerons are used in pairs to control the aircraft in roll (or movement around ...
s filled the whole
trailing edges of these outer panels. There were
airbrakes at mid-
chord.
[
The Borea seated two in side-by side configuration and so its generally ]ovoid
An oval () is a closed curve in a plane which resembles the outline of an egg. The term is not very specific, but in some areas (projective geometry, technical drawing, etc.) it is given a more precise definition, which may include either one or ...
section, plywood
Plywood is a material manufactured from thin layers or "plies" of wood veneer that are glued together with adjacent layers having their wood grain rotated up to 90 degrees to one another. It is an engineered wood from the family of manufactured ...
covered fuselage
The fuselage (; from the French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds crew, passengers, or cargo. In single-engine aircraft, it will usually contain an engine as well, although in some amphibious aircraft t ...
was broad and almost circular in the cockpit
A cockpit or flight deck is the area, usually near the front of an aircraft or spacecraft, from which a Pilot in command, pilot controls the aircraft.
The cockpit of an aircraft contains flight instruments on an instrument panel, and the ...
area. Ahead and overlapping the wing leading edge
The leading edge of an airfoil surface such as a wing is its foremost edge and is therefore the part which first meets the oncoming air.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', page 305. Aviation Supplies & Academics, ...
, the canopy was multi-framed and blended into the fuselage. Aft of the wings the fuselage tapered markedly to the tailplane
A tailplane, also known as a horizontal stabiliser, is a small lifting surface located on the tail (empennage) behind the main lifting surfaces of a fixed-wing aircraft as well as other non-fixed-wing aircraft such as helicopters and gyroplane ...
, which was mounted just above the fuselage on a very short pedestal. The tailplane and elevator
An elevator or lift is a wire rope, cable-assisted, hydraulic cylinder-assisted, or roller-track assisted machine that vertically transports people or freight between floors, levels, or deck (building), decks of a building, watercraft, ...
s together were straight tapered and round tipped, the elevators unbalanced and with a cut-out for rudder movement. A small fin
A fin is a thin component or appendage attached to a larger body or structure. Fins typically function as foils that produce lift or thrust, or provide the ability to steer or stabilize motion while traveling in water, air, or other fluids. Fin ...
mounted a full, rounded and balanced rudder
Balanced rudders are used by both ships and aircraft. Both may indicate a portion of the rudder surface ahead of the hinge, placed to lower the control loads needed to turn the rudder. For aircraft the method can also be applied to elevators and ...
which reached down to the keel, protected by an underfin/tail bumper.[
The Borea was completed but not flown. Pavullo is in the region of Italy occupied by the ]Germans
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3,322,405
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after the fall of Benito Mussolini
Benito Amilcare Andrea Mussolini (; 29 July 188328 April 1945) was an Italian politician and journalist who founded and led the National Fascist Party. He was Prime Minister of Italy from the March on Rome in 1922 until his deposition in 194 ...
in July 1943. When they retreated, the Germans destroyed the buildings and aircraft at Pavullo, including the Borea.[
]
Specifications
See also
References
External links
Göttingen 532 airfoil
{{Portal bar, Italy, Companies, Aviation
Borea
Gull-wing aircraft
1940s Italian sailplanes