red750

The Hirsch or Hirsch-MAéRC H.100 is an experimental aircraft, built in France in the 1950s to test an aerodynamic gust suppression system. The system worked but was not further developed.

René Hirsch had been working on aerodynamic methods that would stabilize an aircraft meeting a gust since 1936 and had set up a company to this end, Moyens aérodynamiques de regulation et de contrôle (MAéRC) (English: Aerodynamic means of regulation and control). Making its first flight on 15 June 1954, the H.100 incorporated the results of his research[1] but was MAéRC's only aircraft.

Control systems apart, the H.100 was a fairly conventional twin engine, wooden aircraft, with a cantilever low wing of trapezoidal plan. The fuselage was strikingly clean aerodynamically, with only gradual changes of cross-section from nose to tail. Behind the pilot's transparency there were three starboard and two port side windows. The horizontal surfaces, mounted on top of the fuselage, had both a high aspect ratio and marked dihedral. Originally the vertical tail was rounded and quite small but during development a large, straight tapered ventral fin was added.

The H.100 had a tall, rearward retracting tricycle undercarriage. The main legs retracted into extensions of the engine fairings beyond the wing trailing edge.

The Abrams P-1 Explorer was an American purpose-designed aerial photography and survey aircraft that first flew in November 1937.

The Explorer was designed by aerial survey pioneer Talbert Abrams, to meet his needs for a stable aircraft with excellent visibility for his work. Abrams was an early aerial photographer in World War I. He used a Curtiss Jenny post-war, forming ABC airlines. In 1923, Abrams founded Abrams Aerial Survey Company and in 1937, Abrams Aircraft Corporation to build the specialized P-1 aircraft. Only 1 built.

For more details, click here.

The Heinkel He 118 was a prototype German monoplane dive bomber design that lost out to the Junkers Ju 87 Stuka in the 1930s, and was never ordered by the Luftwaffe.

The SIPA S.300 was a French turbojet-powered basic trainer, claimed to be the first of its kind anywhere. Only one was built, the prototype crashed after a year of development.

Just as long as you don't confuse him with me. I've been on this forum a few years longer than he has.

Copy and paste from ABC report. Here's a photo...

Two people have been taken to hospital after a paraglider crash near Elphinstone, in central Victoria.

The powered aircraft came down into a paddock on Potts Road just after 11am.

Victoria Police said a 70-year-old man from Chadstone and 69-year-old woman from Toorak were transported to hospital with non-life-threatening injuries.

Ambulance Victoria said a woman with lower body injuries was airlifted to The Alfred, while a man was taken by road to Bendigo Health in a stable condition.

Investigations were underway into what caused the crash.

Police were calling for witnesses to the incident, particularly any CCTV or dashcam footage which may help with their investigations.

There was a severe weather warning for damaging winds for the central district which included the Elphinstone area at the time.

The Fairchild Dornier 728/928 family was a series of jet-powered regional airliners that was being developed by German-American aviation conglomerate Fairchild Dornier.

It was a relatively ambitious bid to develop a group of aircraft that would have seated between 50 and 110 passengers, supplementing the existing 328JET series, a smaller regional jet. The 728/928 family is a monoplane design with fixed wings in low wing configuration and two engines mounted under the wings. It has a retractable undercarriage (or landing gear) in tricycle configuration. On 21 March 2002, the roll-out of the first 728 took place. The company planned its maiden flight to occur during the summer of 2002 and for deliveries to commence during mid-2003 to the launch customer Lufthansa Cityline.

During July 2003, D'Long International Strategic Investment Group of Xinjiang, China showed an interest in purchasing a stake the project. A new entity, Fairchild Dornier Aeroindustries, was formed with the aim of completing development of the aircraft, however, this company also filed for bankruptcy during 2004. During this brief revival, no additional aircraft were produced, although structural tests in Dresden were commenced during 2003.

Number built    3 prototypes built to various stages of completion

928
Planned to follow the 728 into service, the 928 had a stretched fuselage that would have enabled the aircraft to achieve a passenger capacity of 95 to 110 seats. The first flight was scheduled for late 2003 with entry into service in 2005. The 928 featured an increased wing span and more powerful GE CF-34-10 engines. A 928-100 version, as well as a 928-200 version that had an increased maximum takeoff weight (MTOW), was planned.

The Convair YB-60 was a prototype heavy bomber built by Convair for the United States Air Force in the early 1950s. It was a purely jet-powered development of Convair's earlier mixed-power B-36 Peacemaker.

On 25 August 1950, Convair issued a formal proposal for a swept-winged version of the B-36 with all-jet propulsion. The Air Force was sufficiently interested that on 15 March 1951, it authorized Convair to convert two B-36Fs (49-2676 and 49-2684) as the B-36G. Since the aircraft was so radically different from the existing B-36, the designation was soon changed to YB-60.

The YB-60 had 72% parts commonality with its piston-engined predecessor. The fuselages of the two aircraft were largely identical although the radar and bombing systems were located in a removable nose section as a result of the poor reliability of the B-36 installation. For initial flight testing a more streamlined nose with an instrumented boom was fitted; a wedge-shaped insert was added just outboard of the main landing gear to increase wing sweep and the tail surfaces were swept to match. The swept wings also used many B-36 parts. A steerable tail wheel was added to prevent the aircraft tipping backwards. It was not necessarily extended when on the ground but depended on how the aircraft was loaded.

Convair YB-60 serial number 49-2676 made its maiden flight on 18 April 1952, piloted by Beryl Erickson. The Boeing YB-52 beat the Convair aircraft into the air by three days. The YB-60 was approximately 100 mph (160 km/h) slower than the YB-52 and also had significant handling problems, due to its controls having been designed for slower operating speeds. It did carry a heavier bomb load — 72,000 lb (33,000 kg) against 43,000 lb (20,000 kg) for the YB-52 — but the Air Force did not see the need for the extra capacity, given the YB-60's other drawbacks. Later, "big belly" modifications increased the B-52's bomb load to 60,000 pounds (27,000 kg). The flight test programs were canceled on 20 January 1953, with 66 flying hours accumulated. The second prototype was nearing completion but its engines had not been installed and other equipment installations had not been completed. Since Convair completed their prototype contract satisfactorily, both YB-60s were formally accepted by the Air Force in 1954. The operational aircraft never flew again, and both airframes were scrapped by July.

The Horten H.XIII was an experimental flying wing aircraft designed by the Horten brothers during World War II.

The H.XIIIa was an unpowered glider with wings swept backwards at 60°. It was a technology demonstrator to examine the low speed handling of highly swept wings, for the development of a jet fighter which was expected to exceed Mach 1, the H.XIIIb. The small bit in the centre of the trailing edge is the cockpit.

Illustration of capacity of CL-760.

The Lockheed CL-760 LARA, standing for Light Armed Reconnaissance Aircraft, was conceived in the 1960s, this aircraft was Lockheed’s answer to the U.S. Army’s need for a novel kind of light tactical aircraft.

It was envisioned to fulfill multiple roles such as reconnaissance, close air support, and interdiction missions. The CL-760 project serves as a testament to the advancement of military aviation technology and strategies during the Cold War period, as well as showcasing Lockheed’s capacity for innovative aircraft design.

The 1960s were a period of rapid advancement in military aviation technology, fueled by the tensions of the Cold War. The United States military, particularly the Army, sought to enhance its tactical capabilities with aircraft that could provide close support to ground troops, perform reconnaissance, and engage in light strike missions. This period saw the development of several aircraft designed to fulfill similar roles, such as the OV-10 Bronco and the Cessna A-37 Dragonfly.

The CL-760 lost out to the OV-10 Bronco.

The FAA proposed a new airworthiness directive earlier this year to address a potential flaw in Boeing jets, DailyMail.com can reveal.

According to the FAA proposal, the issue involved an electrical fault on the company's 777 jets that, if left unaddressed, could cause fuel tanks on the planes' wings to catch fire and explode. 

Discovery of the flaw exposes that nearly 300 more Boeing planes are potentially at risk, including jets used by United and American Airlines, according to the notice by the Federal Aviation Administration.

https://www.msn.com/en-au/travel/news/air-canada-boeing-plane-bursts-into-flames-seconds-after-taking-off/ar-BB1nPqkf?ocid=winp2fptaskbar&cvid=43cfbc818a9e4c71e102dae0559ab74d&ei=36

The Douglas A2D Skyshark was an American turboprop-powered attack aircraft built by the Douglas Aircraft Company for the United States Navy. The program was substantially delayed by engine reliability problems, and was canceled because more promising jet attack aircraft had entered development and the smaller escort carriers the A2D was intended to utilize were being phased out.

While it resembled the AD Skyraider, the A2D was different in a number of unseen ways. The 5,100-equivalent shaft horsepower (3,800 kW) Allison XT40-A2 engine had more than double the horsepower of the Skyraider's R-3350. The XT40 installation on the Skyshark used contra-rotating propellers to harness all the available power. Wing root thickness decreased from 17% to 12%, while both the height of the tail and its area grew.

Twelve Skysharks were built, two prototypes and ten pre-production aircraft. Most were scrapped or destroyed in accidents, and only one has survived.

The Boeing Skyfox is an American twin-engined jet trainer aircraft, a highly upgraded development of the Lockheed T-33. It was designed as a primary trainer to compete with and replace the Cessna T-37 Tweet. Besides its primary role as a trainer, the aircraft was envisioned to have other roles as well, including ground attack. The program was started by the Skyfox Corporation in 1983, and was acquired by Boeing in 1986.

The program included the replacement of the Allison J33-A-35 turbojet by two Garrett TFE731-3A turbofans. It also included an extensive redesign of the airframe. Only one prototype aircraft was built, and the program was later canceled due to lack of customers.

The Northrop Grumman Firebird is an intelligence gathering aircraft designed by Northrop Grumman's subsidiary Scaled Composites which can be flown remotely or by a pilot. At Scaled, it is known as the Model 355. It was unveiled on May 9, 2011. It was first flown in February 2010 and is considered to be an optionally piloted vehicle (OPV).

In April 2022, Northrop Grumman announced it had suspended production of the Firebird, having failed to secure any export customers for the aircraft. However, company representatives left open the possibility of future production, stating that the aircraft would "remain available for interested customers." Only one had been built.

From regosearch:  Cessna 210MTurbo VH-MYW.   Holder: SWANEPOEL, Johannes Jacob.

The Yakovlev Yak-200 was a prototype Soviet multi-engine trainer built during the 1950s. A modified version was built as the Yak-210 for navigator training, but only one example of each was built before the program was cancelled in 1956.

All items marked SOLD have been removed. It would make it easier, and avoid possible deletion in error, if advertisers, as well as adding SOLD to title of advert, to also add a comment advising date of sale. This will avoid confusion with other edits you may make, such as changing price. Your ID will show on comment as confirmation. Thank you.

red750 (Moderator).

See report.

The Piper PA-32-3M was experimental modification of a Cherokee Six, adding an engine to each wing, making it a trimotor. The only notes on it that I can find is this reference in the variants of the Cherokee Six.

PA-32-3M

"PA-32 prototype modified as a three-engined aircraft with two 115-hp Lycoming O-235 engines fitted to the wings, for development of the PA-34 Seneca"