Reinhard Cumulus
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The Reinhard Cumulus is a
West German West Germany is the colloquial term used to indicate the Federal Republic of Germany (FRG; german: Bundesrepublik Deutschland , BRD) between its formation on 23 May 1949 and the German reunification through the accession of East Germany on 3 O ...
high-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 ...
,
strut-braced In aeronautics, bracing comprises additional structural members which stiffen the functional airframe to give it rigidity and strength under load. Bracing may be applied both internally and externally, and may take the form of strut, which act in ...
single-seat,
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 ...
that was designed by Gerhard Reinhard for amateur construction.


Design and development

Reinhard developed the Cumulus shortly after the
Second World War World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
, first flying it in 1951. The aircraft incorporated many design concepts from prewar aircraft and was similar to the
Schneider Grunau Baby The Schneider Grunau Baby was a single-seat sailplane first built in Germany in 1931, with some 6,000 examples constructed in some 20 countries. It was relatively easy to build from plans, it flew well, and the aircraft was strong enough to han ...
and
Bowlus Baby Albatross The Bowlus BA-100 Baby Albatross is an American high-wing, strut-braced, open cockpit, pod-and-boom glider that was designed by Hawley Bowlus and introduced in 1938.Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', pages 6-7. Soaring S ...
. It has a modest
glide ratio In aerodynamics, the lift-to-drag ratio (or L/D ratio) is the lift generated by an aerodynamic body such as an aerofoil or aircraft, divided by the aerodynamic drag caused by moving through air. It describes the aerodynamic efficiency under give ...
of 19:1. The aircraft is built with a welded steel tube
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 ...
and wooden-framed wings, all covered in doped
aircraft fabric covering Aircraft fabric covering is a term used for both the material used and the process of covering aircraft open structures. It is also used for reinforcing closed plywood structures. The de Havilland Mosquito is an example of this technique, as ar ...
. Its span wing is supported by a single strut per side. The
landing gear Landing gear is the undercarriage of an aircraft or spacecraft that is used for takeoff or landing. For aircraft it is generally needed for both. It was also formerly called ''alighting gear'' by some manufacturers, such as the Glenn L. Martin ...
was originally a simple skid for both take-off and landing, but later versions incorporated a monowheel instead.


Specifications (Cumulus)


See also


References

{{reflist 1950s United States sailplanes Homebuilt aircraft Aircraft first flown in 1951