Various Horten projects
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Feliz Año Antonio
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blackkite
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Hi!
Please enjoy 3-side view of HortenⅦ and jet powered HortenⅦ plan.
German wikipedia says that
"The Horten H VII was a flying school plane of the Horten brothers. The machine was planned as a training aircraft for pilots, which later were supposed to fly fast hunting and combat aircraft of the Nurflügelbauweise.
In the RLM types list the number 8-254 was given when ordering. Later with new task as aerodynamic test and training model for the H IX was the number 226 provided, so that the machine Ho 226 would have worn the label.
The aircraft was developed in 1942 on behalf of the air force for a flying training aircraft. The aircraft was a further development of the Horten H V V3. The changes amounted to an extension of the hull, the modified cabin layout with seats arranged in a long cab cover, as well as a retractable nosewheel landing gear. Furthermore, two samples with two eight-cylinder V-engines Argus as 10 C with 240 HP each were equipped. The H VII V1 was completed in 1943 and piloted by two pilots and 18 flight hours. The V1 already owned the retractable undercarriage intended for the series, as aerial photographs. With the construction of the H VII V2 was began in 1944, until the end of the war it was but never completed. Only parts were completed for the V3.
In late 1943 the Reich Air Ministry (RLM) finished the support for the project, with which the order was cancelled. 1945 but still 20 aircraft for the training of pilots for the Horten H were given IX in order, but no production was made.
Up to the end of the war, only one machine was completed."
Horten H VII V1
Wingspan: 15.24 m
Length: 7.77 m
Wing area: 43,94 m
Wing sweep (front edge): 40°
Please enjoy 3-side view of HortenⅦ and jet powered HortenⅦ plan.
German wikipedia says that
"The Horten H VII was a flying school plane of the Horten brothers. The machine was planned as a training aircraft for pilots, which later were supposed to fly fast hunting and combat aircraft of the Nurflügelbauweise.
In the RLM types list the number 8-254 was given when ordering. Later with new task as aerodynamic test and training model for the H IX was the number 226 provided, so that the machine Ho 226 would have worn the label.
The aircraft was developed in 1942 on behalf of the air force for a flying training aircraft. The aircraft was a further development of the Horten H V V3. The changes amounted to an extension of the hull, the modified cabin layout with seats arranged in a long cab cover, as well as a retractable nosewheel landing gear. Furthermore, two samples with two eight-cylinder V-engines Argus as 10 C with 240 HP each were equipped. The H VII V1 was completed in 1943 and piloted by two pilots and 18 flight hours. The V1 already owned the retractable undercarriage intended for the series, as aerial photographs. With the construction of the H VII V2 was began in 1944, until the end of the war it was but never completed. Only parts were completed for the V3.
In late 1943 the Reich Air Ministry (RLM) finished the support for the project, with which the order was cancelled. 1945 but still 20 aircraft for the training of pilots for the Horten H were given IX in order, but no production was made.
Up to the end of the war, only one machine was completed."
Horten H VII V1
Wingspan: 15.24 m
Length: 7.77 m
Wing area: 43,94 m
Wing sweep (front edge): 40°
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blackkite
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Hi!
Horten-Va.
"The Ho V, constructed between 1936 and 1938, was a two-seater sailplane, but in 1942 it was converted to single-seat configuration. A second Ho V made much use of plastic in its construction. From the outset, the Ho V was designed as a powered research aircraft. Its wing had pronounced sweepback on the outer panels, but the centre section had greatly reduced sweep on the leading edge and a straight, unswept trailing edge. The centre section had a welded steel tube structure to support two 60kW Hirth engines, driving pusher propellers through extension shafts. In a bid to acquire more funds, the Hortens proposed a glider-tug version of the Ho V, but this was not taken up. "
http://www.aviastar.org/air/germany/horten_ho-5.php
I imagine that at first Horten Ho-Va was a glider and later had engines.
Horten-Va.
"The Ho V, constructed between 1936 and 1938, was a two-seater sailplane, but in 1942 it was converted to single-seat configuration. A second Ho V made much use of plastic in its construction. From the outset, the Ho V was designed as a powered research aircraft. Its wing had pronounced sweepback on the outer panels, but the centre section had greatly reduced sweep on the leading edge and a straight, unswept trailing edge. The centre section had a welded steel tube structure to support two 60kW Hirth engines, driving pusher propellers through extension shafts. In a bid to acquire more funds, the Hortens proposed a glider-tug version of the Ho V, but this was not taken up. "
http://www.aviastar.org/air/germany/horten_ho-5.php
I imagine that at first Horten Ho-Va was a glider and later had engines.
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blackkite
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blackkite
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Hi Horten Ho-1.
Wing span :12.4m, Sweep Angle : 23 degrees, Taper ration : 6:1, Aspect ratio : 7.3
http://www.airwar.ru/enc/glider/ho1.html
German aircraft designers brothers Raymar and Walter Hortena, founders of a set of planes and type gliders "a flying wing", began the design activity in the thirties. Still in Hortena's teenagers became interested in tailless aircraft. From the 1931st Hortena (Walter was 18 years old, Raymara - 16) is studied by features of flight of "a flying wing". Occupations in club of the German union of glider pilots in Bonn and hobby for aircraft modeling were useful also. Glider No-I of "Hangwind" constructed in 1933rd, became the first full-size creation of brothers. The device with a wooden set and a fabric covering executed according to the scheme "a flying wing". The pilot settled down sitting in tsentroplane. Wing - strelovidny on a forward edge and almost direct on back. Under the tsentroplany - not being cleaned landing ski. Tests revealed a number of shortcomings: unsatisfactory lateral stability, tendency to a corkscrew on big angles of attack. However a glider in the national championship in the 1934th awarded a prize for originality of a design. But it did not calm Raymar Horten. After competitions it sorted and burned a glider.
Wing span :12.4m, Sweep Angle : 23 degrees, Taper ration : 6:1, Aspect ratio : 7.3
http://www.airwar.ru/enc/glider/ho1.html
German aircraft designers brothers Raymar and Walter Hortena, founders of a set of planes and type gliders "a flying wing", began the design activity in the thirties. Still in Hortena's teenagers became interested in tailless aircraft. From the 1931st Hortena (Walter was 18 years old, Raymara - 16) is studied by features of flight of "a flying wing". Occupations in club of the German union of glider pilots in Bonn and hobby for aircraft modeling were useful also. Glider No-I of "Hangwind" constructed in 1933rd, became the first full-size creation of brothers. The device with a wooden set and a fabric covering executed according to the scheme "a flying wing". The pilot settled down sitting in tsentroplane. Wing - strelovidny on a forward edge and almost direct on back. Under the tsentroplany - not being cleaned landing ski. Tests revealed a number of shortcomings: unsatisfactory lateral stability, tendency to a corkscrew on big angles of attack. However a glider in the national championship in the 1934th awarded a prize for originality of a design. But it did not calm Raymar Horten. After competitions it sorted and burned a glider.
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blackkite
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blackkite
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blackkite
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blackkite
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blackkite
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First drawing is Ho 229 C /Ho IX C
Second drawing is Ho XVIII (march 23,1945)
Second drawing is Ho XVIII (march 23,1945)
blackkite
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blackkite
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Hi! Horten Ho-ⅩⅢa.
http://all-aero.com/index.php/contactus/34-planes/4970-horten-ho-xiii
"As part of their program on high sweepback, the Hortens built the Ho.XIII to give flight test results on a leading edge sweep of 60 degrees. This increase of sweep reduced the aspect ratio to four. Control deflections were all doubled to compensate for the obliquity of the hinge line and the ends of the control flaps trimmed to run parallel to the new aircraft center line.
The pilot had to be carried in an underslung nacelle to give him a reasonable view; the control column was inverted and hung from the roof of the nacelle.
Undercarriage consisted of a main wheel inset in the nacelle and a fixed nosewheel mounted on a welded steel tube fork.
Flying the H XIII totaled about 10 hours. Trials were interrupted in the middle by Scheidhauer landing in a barbed wire fence.
CLmax was found to be 0.9, with the stick right back. In this condition the incidence was larger than expected – about 20 – 25 degrees instead of 15 degrees, but Horten thought that the induced drag was not correspondingly increased. It was thought that the wing was not completely stalled with the stick hard back because the CG was too far forward.
Control was moderately satisfactory, but in spite of the increased elevon travel was inclined to be sluggish. Elevator control particularly was much less sensitive than on other Horten aircraft.
Horten H XIII a
Wing span: 12m
Wing area: 36sq.m
Empty Weight: 250kg
Payload: 80kg
Gross Weight: 330kg
Wing Load: 9.2kg/sq.m
Aspect ratio: 4
MinSink: 1.1 m/s 60 kph
L/DMax: 16 80 kph
Seats: 1"
http://all-aero.com/index.php/contactus/34-planes/4970-horten-ho-xiii
"As part of their program on high sweepback, the Hortens built the Ho.XIII to give flight test results on a leading edge sweep of 60 degrees. This increase of sweep reduced the aspect ratio to four. Control deflections were all doubled to compensate for the obliquity of the hinge line and the ends of the control flaps trimmed to run parallel to the new aircraft center line.
The pilot had to be carried in an underslung nacelle to give him a reasonable view; the control column was inverted and hung from the roof of the nacelle.
Undercarriage consisted of a main wheel inset in the nacelle and a fixed nosewheel mounted on a welded steel tube fork.
Flying the H XIII totaled about 10 hours. Trials were interrupted in the middle by Scheidhauer landing in a barbed wire fence.
CLmax was found to be 0.9, with the stick right back. In this condition the incidence was larger than expected – about 20 – 25 degrees instead of 15 degrees, but Horten thought that the induced drag was not correspondingly increased. It was thought that the wing was not completely stalled with the stick hard back because the CG was too far forward.
Control was moderately satisfactory, but in spite of the increased elevon travel was inclined to be sluggish. Elevator control particularly was much less sensitive than on other Horten aircraft.
Horten H XIII a
Wing span: 12m
Wing area: 36sq.m
Empty Weight: 250kg
Payload: 80kg
Gross Weight: 330kg
Wing Load: 9.2kg/sq.m
Aspect ratio: 4
MinSink: 1.1 m/s 60 kph
L/DMax: 16 80 kph
Seats: 1"
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blackkite
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And Horten Ho-ⅩⅢb.
I feel Messerschmitt and Junkers engineers flavour.
"The Horten Ho XIII B supersonic flying wing fighter was developed from the Ho XIII A glider, which had 60 degree swept-back wings and an underslung nacelle for the pilot. The XIII B was to be powered by a single BMW 003R turbojet/rocket engine. The cockpit was located in the base of a large, sharply swept vertical fin. Like the research XIII A glider, the XIII B also had swept back wings at a 60 degree angle. Projected armament were two MG 213 20mm cannon, and the Ho XIII B was projected to be flying by mid-1946."
http://www.sharkit.com/sharkit/Ho.XIIIb/HoXIIIb.htm
"The Horten X (XIIIb) was a Top Secret project that was still under development when World War II ended in May 1945.
The single-seat fighter was to be a mixed propulsion aircraft powered by a both an He S-011 turbojet and a Walter rocket engine. The aircraft was expected to break the sound barier in a steep dive and then maintain supersonic level flight during combat. Engineers calculated that the plane would achieve a top speed of Mach 1.4.
The project began with the construction of a full-sized glider with a 70-degree nose-angle wing to investigate subsonic handling and landing problems. The glider was almost finished when it was destroyed in 1945 by advancing Allied troops."
I feel Messerschmitt and Junkers engineers flavour.
"The Horten Ho XIII B supersonic flying wing fighter was developed from the Ho XIII A glider, which had 60 degree swept-back wings and an underslung nacelle for the pilot. The XIII B was to be powered by a single BMW 003R turbojet/rocket engine. The cockpit was located in the base of a large, sharply swept vertical fin. Like the research XIII A glider, the XIII B also had swept back wings at a 60 degree angle. Projected armament were two MG 213 20mm cannon, and the Ho XIII B was projected to be flying by mid-1946."
http://www.sharkit.com/sharkit/Ho.XIIIb/HoXIIIb.htm
"The Horten X (XIIIb) was a Top Secret project that was still under development when World War II ended in May 1945.
The single-seat fighter was to be a mixed propulsion aircraft powered by a both an He S-011 turbojet and a Walter rocket engine. The aircraft was expected to break the sound barier in a steep dive and then maintain supersonic level flight during combat. Engineers calculated that the plane would achieve a top speed of Mach 1.4.
The project began with the construction of a full-sized glider with a 70-degree nose-angle wing to investigate subsonic handling and landing problems. The glider was almost finished when it was destroyed in 1945 by advancing Allied troops."
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blackkite
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http://www.nurflugel.com/Nurflugel/Horten_Nurflugels/horten_nurflugels.html
This site says that,
"While the research with the H XIII a was linked to the H X delta project, we chose to avoid having the glider identified as part of the project for security reasons. We therefore choose the H XIII a designation instead of HXa. Later the HX was designated H XIII b."
We have some Horten Ho-Ⅹ images.
There were two or three types of Horten Ho-Ⅹ and later one type designated Ho-ⅩⅢb?
This site says that,
"While the research with the H XIII a was linked to the H X delta project, we chose to avoid having the glider identified as part of the project for security reasons. We therefore choose the H XIII a designation instead of HXa. Later the HX was designated H XIII b."
We have some Horten Ho-Ⅹ images.
There were two or three types of Horten Ho-Ⅹ and later one type designated Ho-ⅩⅢb?
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blackkite
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Hi! Horten Ho-ⅩⅡ.
Horten Ho-ⅩⅡ was a light trainer that was needed to prepare pilots for the Ho VII.
Usage : Trainer, Fuselage Construction : Steel tubing, Wing Construction : Wood
Capacity : Pilot and trainee abreast, Motor type : DKW 6 Cylinder, Power : 66 kW (88.5 HP)
Span : 16.0 m, Sweep Angle : 29 degrees, Taper Ratio : 6, Wing Root Thickness : 13% chord
Wing Root Depth : 3.0 m, Rib Spacing : 0.4 m, Wing Area : 38.5 m2, Aspect Ratio : 6.7
Pilot position : Seated, Mid-section width : 2.4 m, Cockpit width : 1.2 m, Cockpit height (from seat) : 1.1 m
Empty weight : 460 kg, Additional payload : 160 kg, Fuel : 80 kg, Maximum weight : 700 kg
Wing loading : 32.3 kg/m2, Engine loading : 10.6 kg/kW
Stall speed : 75 km/h, Landing speed : 75 km/h, Cruise speed : 180 km/h, Maximum speed (horizontal) : 200 km/h
Maximum speed : 200 km/h
Horten Ho-ⅩⅡ was a light trainer that was needed to prepare pilots for the Ho VII.
Usage : Trainer, Fuselage Construction : Steel tubing, Wing Construction : Wood
Capacity : Pilot and trainee abreast, Motor type : DKW 6 Cylinder, Power : 66 kW (88.5 HP)
Span : 16.0 m, Sweep Angle : 29 degrees, Taper Ratio : 6, Wing Root Thickness : 13% chord
Wing Root Depth : 3.0 m, Rib Spacing : 0.4 m, Wing Area : 38.5 m2, Aspect Ratio : 6.7
Pilot position : Seated, Mid-section width : 2.4 m, Cockpit width : 1.2 m, Cockpit height (from seat) : 1.1 m
Empty weight : 460 kg, Additional payload : 160 kg, Fuel : 80 kg, Maximum weight : 700 kg
Wing loading : 32.3 kg/m2, Engine loading : 10.6 kg/kW
Stall speed : 75 km/h, Landing speed : 75 km/h, Cruise speed : 180 km/h, Maximum speed (horizontal) : 200 km/h
Maximum speed : 200 km/h
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blackkite
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blackkite
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Great Justo-san!!
I feel fins under the wing of this HX fighter is the cover for undercarriage which half retracted to the backward direction.
Undercarriage position in plan view shows retracted position as you can confirm.
I feel fins under the wing of this HX fighter is the cover for undercarriage which half retracted to the backward direction.
Undercarriage position in plan view shows retracted position as you can confirm.
Is a fictional drawing by Renaud Mangallon (Sharkit)
blackkite
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Hi!
Horten Ho-ⅩⅣ.
Horte Ho-XIV is all wing gliders for planned aeroclub in the Second World War last years. It's extreme surprise that such glider was being planned during a war. Horte Ho-XIV had completed it mostly at the time of end of the war.
Span(m) : 16, Wing area(㎡) : 15.76, Leading edge swept back angle : 18 degree, Taper ratio : 5, Aspect ratio : 16.2
Dry weight(kg) : 150, Gross weight(kg) : 230, Wing loading(kg/㎡) : 14.6, Maximum speed(km/h) : 250, Landijg speed(km/h) : 41,
Maximum glide ratio : 30(at 70.0 km/h) , One pilot
Horten Ho-ⅩⅣ.
Horte Ho-XIV is all wing gliders for planned aeroclub in the Second World War last years. It's extreme surprise that such glider was being planned during a war. Horte Ho-XIV had completed it mostly at the time of end of the war.
Span(m) : 16, Wing area(㎡) : 15.76, Leading edge swept back angle : 18 degree, Taper ratio : 5, Aspect ratio : 16.2
Dry weight(kg) : 150, Gross weight(kg) : 230, Wing loading(kg/㎡) : 14.6, Maximum speed(km/h) : 250, Landijg speed(km/h) : 41,
Maximum glide ratio : 30(at 70.0 km/h) , One pilot
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