aerei curiosi

[Ospite intruder]

 

Altro modello di Sukhanov. La cosa divertente è che questi aggeggi volano davvero, magari nelle fiere di paese o nei baracconi del circo, ma volano.

Modificato 30 Dicembre 2008 da intruder

[Blue Sky]

Hughes Model 385 / XV-9A "Hot Cycle"

1964

 

 

Convinced that the use of gas pressure to drive rotors, as used in the XH-17 and proposed for the XH-28, was superior to conventional methods as the elimination of the transmission drive system resulted in a lighter, less complex, and more easily maintained system, Hughes engineers sought ways to improve the propulsive efficiency of pressure-jet rotors. Eventually concluding that much improvement would result from ducting the hot efflux of gas generators directly to cascade vanes at each blade-tip instead of piping cold air to tip-burning nozzles, they succeeded in attracting the interest of the US Army. Funded by the Army beginning in 1962, the multi-phase development programme for the Model 385 began with 60 hours of test running of a prototype hot-cycle rotor mounted on a ground rig. As results were encouraging, Hughes proceeded to the next phase, 15 hours of bench testing of the Model 385 propulsion module consisting of two General Electric YT64-GE-6 gas generators mounted at the tips of stub wings and driving a three-bladed rotor. Each blade was of two-spar construction with the hot efflux of the gas generators being taken to vanes at their tips by means of a Rene 41 high-temperature steel duct passing between the spars. Cooling air was forced through the leading and trailing edges of the constant-chord blades and was exhausted at the tip, fore and aft of the hot efflux. Results remaining promising, Hughes was authorized to proceed with the manufacture and testing of a research vehicle, the XV-9A (serial 64-15107), which was given a VTOL mission designator instead of the more traditional H helicopter designator.

As the XV-9A was only intended as a demonstrator for the hot-cycle system, the Army requested that manufacturing costs be kept to a minimum by using components from other aircraft. Thus, the cockpit of a Hughes OH-6A (with side-by-side accommodation for a pilot and a co-pilot/flight test engineer) and the undercarriage of a Sikorsky H-34 were mated to a specially-built fuselage and V-tail. The hot efflux from two General Electric YT64-GE-6 gas generators, which were loaned by the Navy and mounted at the tips of a stub wing, drove the three-bladed rotor. Bleed air from these generators was ducted to a yaw control system at the tail.

First flown by Robert G. Ferry at Culver City on 5 November, 1964, the XV-9A remained at the manufacturer's facility until it had completed an initial 15-hour flight test programme. It was then transferred to Edwards AFB, where an additional 23 hours were flown. From an engineering point of view, tests proved highly satisfactory and in 1965 Hughes confidently predicted that the hot-cycle system would be used for heavy-lift military helicopters and for compound civil helicopters. The latter, which were to have been fitted with short wings and forward thrust fans, were expected to fly at speeds of up to 480km/h. From the environmental and economic points of view, however, the XV-9A was less successful as the exhaust of hot efflux through cascade vanes at the tips of the rotor was noisy and unacceptable in urban areas and as fuel consumption rate was high. To mitigate these deficiencies, Hughes proposed a refinement of the pressure-jet concept based on the use of turbofans in lieu of gas generators. This warm-cycle system was tested in a wind tunnel and on a whirling stand but improvements were insufficient to warrant the manufacture and testing of a flying prototype, thus bringing to an end the development by Hughes of pressure-jet systems successively based on the cold-cycle principle, as used for the XH-17 and XH-28, the hot-cycle principle, as featured by the XV-9A, and the warm-cycle principle, as evaluated during whirling stand tests.www.aviastar.org

[Ospite intruder]

 

SIPA S.200 Minijet: designed by Yves Gardan, the Minijet was the SIPA (Société Industrielle pour l’Aéronautique) contender in the trainer contest organized by the S.A.L.S. (Service de l’Aviation Légère et Sportive, Light and Sport Aviation Service). Only seven were built and the prototype, F-WCZK c/n 01, was first flown by Roger Launey on January 14, 1952.

 

Powered by a 353 lb (160 kg) st. Turboméca Palas, and flown by Alan Hisler, the pictured aircraft was placed second in the Lockheed Aerobatic Trophy contest of 1955.

[Ospite intruder]

Un minuto di raccoglimento: è morta la decenza.

 

Starr Bumble Bee

 

 

Starr named the aircraft "bumble bee" because it is said that natures' bumble bee does not have sufficient wing area to fly. At first, some engineers and pilots said the same about Starr's Bumble Bees. The bumble bee and the Bumble Bees have never heard this rumor, so they fly anyway.

 

Unfortunately on the day of its first flight, after making several passes at a height of about 400 ft., the aircraft's engine quit. The plane was completely destroyed in the resulting crash.Starr, the pilot, was seriously injured, but eventually fully recovered from his injuries.

 

Although the Bumble Bee II was lost, the original Bumble Bee is on display at the Pima Air & Space Museum in Tuscon, AZ.

 

http://www.aviationtrivia.info/Starr-Bumble-Bee-II.php

Modificato 31 Dicembre 2008 da intruder

[Blue Sky]

Un minuto di raccoglimento: è morta la decenza.

:wip41:

 

 

Homebrewed helicopter

Modificato 31 Dicembre 2008 da Blue Sky

[Ospite intruder]

Stits SA-1A Junior

Modificato 31 Dicembre 2008 da intruder

[Blue Sky]

CIRCLE CW AIRCRAFT

 

www.aamb.com

[Ospite intruder]

 

Thruxton HDW-1 Gadfly, 1967

 

The Thruxton Aviation Co. of Andover, England, began design of their two-seat cabin ES 101 Gadfly autogyro in 1964, using a conventional two-blade teeter rotor system with a fixed-pitch pusher propeller driven by a 165hp Rolls-Royce Continental engine, and a twin boom tail structure. Ground tests of the sole prototype began at Thruxton airfield in 1967 but this autogyro failed to fly and was abandoned.

 

 

 

TYPE: Two-seat general-purpose light autogyro

 

ROTOR SYSTEM: Two-blade rotor. Blades of laminated spruce and balsa

 

FUSELAGE: Welded square-section steel tube

 

TAIL UNIT: Twin fin and rudders on tail booms

 

LANDING GEAR: Non-retractable tricycle type

 

POWER PLANT: One 165hp Rolls-Royce Continental IO-346-A four-cylinder horizontally-opposed air-cooled engine, driving a two-blade pusher propeller

 

ACCOMODATION: Two seats side-by-side in fully enclosed cabin

[Ospite intruder]

 

Campbell F

[Blue Sky]

Sud-Est SE.3101 1946

 

 

The purpose of this experimental single-seater was to study the placing of auxiliary rotors intended simultaneously to provide torque correction and longitudinal control. Two rotors, with compressed wood blades 1.6m in diameter, were placed symmetrically at 45°, one on each side of a V-shaped beam at the end of the fuselage, which was made of soldered tubes without a skin covering. These variable-pitch airscrews enabled the aircraft to be steered by varying their pitch differentially. This helicopter flew for the first time on 1st June 1948.

 

www.aviastar.org

[Ospite intruder]

 

 

Cessna CH-1B YH-41 Seneca

 

 

Modificato 1 Gennaio 2009 da intruder

[Blue Sky]

Cessna CH-1B YH-41 Seneca

 

Azz.... Potevi mettere questo Cess....na nei Nose Art almeno non è stato mai postato! (Vabbè ti rifarai qualche altra volta!)

 

Personal Copter, Lifespan-Chopper

 

 

Feel like you've lived a wee bit too long? Looking for a spectacular way out -- one that'll keep your family crying in disgust for years on end?

Well, has Popular Mechanics got a gizmo for you: the personal helicopter. This $30,000, assemble-yourself "Gen H-4" mini-chopper relies on "two blades on the same axis and rotating them in opposite directions to counteract each other's torque, eliminating the need for a tail rotor."

The contraption meets "the FAA's rules for ultralight aircraft: a top speed of just over 60 mph and a 5-gallon gas tank, for about an hour of flying. That means you don't need a license to own or fly one."

Modificato 1 Gennaio 2009 da Blue Sky

[Ospite intruder]

 

Categoria strani, Chase XC-123A, cioè una versione quadrireattore del Provider, immagino senza seguito.

[Blue Sky]

Categoria strani, Chase XC-123A, cioè una versione quadrireattore del Provider, immagino senza seguito.

 

Non è strano per nulla!

 

 

Oshkosh is also a stomping ground for aircraft designers like Burt Rutan, designer of the Long-EZ kitset plane which XCOR converted to rocket power and demonstrated at the show. This is intended as an initial step towards claiming a $10 million prize which will be awarded to the first group not sponsored by a national government which can launch two manned flights into space within a two week period.

Modificato 1 Gennaio 2009 da Blue Sky

[Ospite intruder]

Categoria strani: Chester Goon (probabilmente un prototipo per record di velocità).

 

[Blue Sky]

Non ricordo se già postato!!!

 

[Ospite intruder]

Non ricordo se già postato!!!

 

Suggerisco a Fabio di inserire fra le faccine l'Urlo di Monch per commentare certi obbrobbri.

 

 

 

Categoria Furgone del lattaio: Stearman-Hammond Y1S

[Ospite intruder]

Fw.189C

 

 

 

 

 

[Ospite Peppe]

Nell'immagine n°2 vedo una torretta proprio dietro la cabina... ma non c'era il rischio di troncarsi metà aereoplano?

[Ospite intruder]

All'epoca, l'arma posteriore era un must per tutti gli aerei d'attacco, pensa allo Stuka o al Dauntless o ai vari modelli sovietici, non riuscivano a pensare a qualcosa senza la mitraglia in coda, qjuindi l'aveva piazzata anche qui, con quali effetti resta tutto da veere, credo che questo velivolo non sia mai andato oltre il prototipo.

[oberst-krieger]

, credo che questo velivolo non sia mai andato oltre il prototipo.

 

Il Fw-189 entrò in servizio nell'agosto del 1941 e concluse il suo servizio nel 1945 distinguendosi come uno dei migliori aerei da ricognizione della WWII! (Wiki)

[Ospite intruder]

Non questo modello.

[Blue Sky]

??????

 

[Ospite intruder]

Voglio la faccina con l'Urlo di Monch!

 

 

 

Continuiamo con la categoria "strani": non so perché, ma con il motore messo in quella maniera e quell'elichetta della mutua sul muso mi dà l'impressione più di uno scherzo che di un aereo...

 

 

Sferma-Nord 1110

[Doiman]

Voglio la faccina con l'Urlo di Monch!

ecco qui non e' una faccina ma rende bene l'idea