Era

Payen PA49 Katy

TerryLeave a comment

Designd by Nicolas Roland Payen, Flechair Sa built Payen’s Pa.49 experimental jet-powered delta-winged aircraft. In May 1951, three workers directed by Payen built the all-wood PA-49 in a month. Reportedly named after Roland Payen’s youngest daughter.

It has a triangular shape or Delta wing, 2.7 m swallow tail. The wing has 72 ° sweep, is 11,250 m² with a wingspan of 5.6 m. This wing has no dihedral. The average profile is a modified NACA the 230000 series. The structure of the wing is built in one piece. The trailing edge has flaps in the central part, equipped with tabs controlled in flight. The control surfaces are statically and dynamically balanced. The structure of the wing, is composed mainly of a working chamber, formed by the assembly of two perpendicular rails and oblique side rails symmetrically joined by two ribs. All wing spars or fins, main or joint, and ribs are made of box spruce (laminated strips) and birch plywood.

While the Pa-49’s inboard elevators and outboard ailerons functioned separately, the rudder doubled as a speedbrake.

The Pa-49 strengthened surfaces ‘split’ open to act as air brakes. This solved the problem of interference between the braking and directional controls on an all-wing aircraft.

It is equipped with a Turbomeca Palas turbine engine. The Turbomeca Palas turbojet engine weighed 159 pounds and producied approximately 330 pounds of thrust, it drew air in through dual intakes at the junction of the wing’s leading edge and fuselage.

Originally designed with a bicycle landing gear that incorporated wing-tip skids, the Pa-49 ultimately flew with fixed tricycle gear.

It was not until the end of 1952 and negotiation for the PA-49 to undergo testing in the wind tunnel of ONERA Chalais-Meudon.

First flown on January 22, 1954, by Tony Ochsenbein, the PA49 was the first French delta-wing aircraft.

The endurance of just over one hou was entirely sufficient for short test flights. It was also sufficient for flights to various airshows and industry expositions, where the aircraft was photographed on several occasions, both on static display and in flight.

Between 1954 and the end of 1958, it made many flights before the project became inactive.

Payen Pa-49B Katy

Fortunately, the Katy survived 300 test flights unscathed, and Payen ultimately donated it to the Musée de l’Air et de l’Espace in Paris, where it remains on display today.

Gallery

Engine: one Turbomeca Palas of 330 lb thrust
Wingspan: 16 ft 11 in
Length: 16 ft 8 in
Height: 7 ft 2 in
Empty weights: 1,005 lb
Max all-up weight: 1,430 lb
Maximum speed: 310 mph
Cruise speed: 217 mph
Landing speed: 67 mph
Initial rate of climb: 1,150 ft/min
Ceiling: 27,880 ft
Endurance: just over 1 hr
Accommodation: single-seat

Payen PA-22 / PA-112

TerryLeave a comment

Roland Payen evolved a radical tandem-wing configuration which he dubbed the Fléchair, the short-span tapered foreplane carrying a combination of ailerons and flaps and the 67-deg aft plane carrying combined elevator-flaps, the pilot’s cockpit fairing into the vertical tail surfaces. In 1938, Payen proposed to the Ministère de l’Air a lightweight fighter version of the PA 112, a racing aircraft then being developed by the Sociêté Co-operative d’Etudes et Productions Aéronautiques (SCEPA) to the Fléchair configuration and intended to participate in the 1939 Coupe Deutsch de la Meurthe. The PA 112 was to be a retractable monowheel undercarriage with outrigger skids retracting into the aft plane. Weighing only 948 lb (430 kg) empty and 1,345 lb (610 kg) loaded, the PA 112 had extremely small overall dimensions which included a span of 13 ft 7¾ in (4,16 m) and a length of 22 ft 1 in (6,74 m), height being 6 ft 11 in (2,11 m), and it was rather optimistically anticipated that a maximum speed of 360 mph (580 km h) would be attainable. The projected lightweight fighter derivative, the PA112 Cl, was to have had two wing-mounted 7,5-mm machine guns and a 20-mm cannon firing through the extension shafts of the Salmson engines, and an elaborate mock-up of the proposed PA112 Cl was built, this, in fact, utilising the airframe of one of the two PA 100 Coupe Deutsch racing aircraft. Possibly as a result of the dramatically unorthodox nature of the proposed PA 112 Cl, no contract was forthcoming from the Ministère de lAir.

Although no example of the PA 112 was completed and the 1939 Coupe Deutsch was destined never to take place, development of the Fléchair concept continued with the PA 22 which was of similar configuration to the PA 112 but had a conventional engine installation and a conventional fixed tailwheel under¬carriage. The PA 22 had originally been built to test the Mèlot ramjet but was eventually to be completed in 1939 with a 180 hp Régnier R6 inverted inline air-cooled engine. After completion, it was mounted in the Chalais Meudon wind tunnel where it was found by the German occupation forces who expressed some curiosity as to its possible flying characteristics. Accordingly, it was transferred to Villacoublay where it was flown for the first time by Jacques Charpentier in October 1942. A flight test programme was conducted, but before this could be completed, the German authorities decided that the PA 22 should be taken to Rechlin. However, on the pretext that a number of modifications were necessary, Payen succeeded in having the prototype returned to his factory at Juvisy where it was intended to make changes to the undercarriage, mount supplementary fuel tanks and fit a variable-pitch propeller. In the event, these modifications were still in process when the factory was hit during an Allied bombing raid on the Juvisy railway yard, the PA 22 being destroyed.

Engine: Régnier R6 inverted inline air-cooled, 180 hp
Empty weight: 1,221 lb (554 kg)
Loaded weight: 1,894 lb (859 kg)
Wing span: 15 ft 9 in (4,80 m)
Length: 24 ft 3.33 in (7,40 m)
Height: 7 ft 8½ in (2,25 m)
Wing area: 107.64 sq ft (10,00 sq.m)
Maximum speed: 224 mph (360 kmh)
Maximum cruise: 205 mph (330 kmh)
Landing speed: 47 mph (75 kmh)

Payen AP-10

TerryLeave a comment

Payen first built a small single-seater AP-10, studied in collaboration with Aubrun. It was a light monoplane with triangular wing with a short length. This machine flew in Dieppe in 1935 and 1936, equipped with an AVA engine of 25 hp, then later a TRAIN of 40 hp. The AP-10 was extrapolated into the two-seater AP-12.

Wing span: 4.95m
Length: 4.16 m
Wing area: 10 sq.m
Empty weight: 200 kg
Max. gross weight: 340 kg
Min. speed: 45 km/h
Max. speed: 200 km/h

Payen

TerryLeave a comment

Nicolas Roland Payen is known as the inventor of the “fléchair”, marrying delta wing and canard wing. Payen built a sailplane at 14 years age, and deposited his first patent at 18 years. After studies at an Aeronautical University, and the field of hang-gliders, he first built a small single-seater AP-10, studied in collaboration with Aubrun. It was a light monoplane with triangular wing with a short length. This machine flew in Dieppe in 1935 and 1936, equipped with an AVA engine of 25 hp, then later a TRAIN of 40 hp. The AP-10 was extrapolated into the two-seater AP-12 (also called PA-120), which had the same concept a hang-glider, with self-stabilizing profile. The two-seater was to be equipped with an engine of 40 to 50 hp. Unlike the AP-10, the AP-12 did not leave the drawing board. Payen then concentrated more on delta aerofoils. After the war Payen built the single-seater jet PA-49 “Katy”, precursor of the “Mirage” series of the planes with delta wing, and two-seater PA-61 “Arbalète”.

Pawnee Aviation Warrior

TerryLeave a comment

A kit helicopter, first flown in 1992, the kits had all major parts assembled, and all blades and parts balanced.
Kit price in 1997 was US$15,500.

Engine: Hirth, 65 hp
hp range: 65-110
Height: 7 ft
Length: 15 ft
Disk span: 21 ft
Empty weight: 435 lb
Gross weight: 825 lb
Fuel capacity: 14 USG
Max speed: 100 mph
Cruise: 80 mph
Range: 175 sm
Rate of climb: 1000 fpm
Service ceiling: 10,000 ft
Seats: 1

Pause, Rudolf

TerryLeave a comment

In 1929 Rudolf Pause caused a sensation with a muscle-powered swing plane developed in his company. From a hill on what is now Bodenseestrasse, Pause takes “incredible” leaps in the air, according to the archive authors, with a range of twelve meters.

According to the plans of designer Adalbert Schmid, who works for him, they build a swing-wing glider. On June 26, 1942, the muscular-strength aircraft will set out on a 900-meter flight on a meadow on Agnes-Bernauer-Strasse, where the Westbad is today. If you believe the pause experts from the Pasinger Archive, then it was the world’s first manned swing flight.

As a result, Schmid and Pause will of course equip the swing wing with motors, but the project comes to an abrupt end. The Nazi rulers believe that it is not important to the war effort.