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VL Humu
The VL Humu (Whirlwind) is a Finnish fighter aircraft, designed by Valtion lentokonetehdas in 1944, and based on the American Brewster F2A Buffalo. Design and development The Finnish Air Force had acquired 40+ surplus B-239 naval variants of the Brewster Buffalo and put them to good use during the Winter War, so it was decided in 1942 to produce a copy due to aircraft shortages. Chief designer Martti Vainio, along with designers Torsti Verkkola, Arvo Ylinen at Valtion Lentokonetehdas were tasked with designing the new aircraft as well as a replacement wing made of wood instead of metal. The Humu was largely constructed out of wood due to scarcity of metals, but the frame was made from steel and its design followed closely that of the Brewster. It was planned that captured Soviet engines and instrument panels would be used. It was powered by a 930 hp Shvetsov M-63 engine, previously tested on a Brewster. The wooden wing added 250 kg of extra weight and moving the fuel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finnish Air Force Museum
The Finnish Air Force Museum (), formerly the Aviation Museum of Central Finland (), is an aviation museum located near Jyväskylä Airport in Tikkakoski, Jyväskylä, Finland. The museum exhibits the aviation history of Finland, from the early 1900s until today. The museum is owned by the Foundation of Aviation Museum of Central Finland (). The exhibition consists of aircraft, engines and aircrew equipment which has been used by the Finnish Air Force. The equipment of the Air Force Signals Museum has its own section. A large collection of scale models gives a wider perspective to the whole field of aviation. The museum has around 25,000 visitors. Aircraft The following aircraft are a selection of the collection. More aircraft are being stored elsewhere, waiting for restoration. * Avro 504K * Bell P-39 Airacobra * Brewster Buffalo * Bristol Blenheim * De Havilland D.H.60X Moth * De Havilland D.H. 115 Vampire Trainer T.Mk.55 * Douglas DC-3 i.e. C-47 * Focke-Wulf Fw 44 J St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NACA Airfoil
The NACA airfoil series is a set of standardized airfoil shapes developed by this agency, which became widely used in the design of aircraft wings. Origins NACA initially developed the numbered airfoil system which was further refined by the United States Air Force at Langley Research Center. According to the NASA website: Four-digit series The NACA four-digit wing sections define the profile by: # First digit describing maximum Camber (aerodynamics), camber as percentage of the Chord (aircraft), chord. # Second digit describing the distance of maximum camber from the airfoil leading edge in tenths of the chord. # Last two digits describing maximum thickness of the airfoil as percent of the chord. For example, the NACA 2412 airfoil has a maximum camber of 2% located 40% (0.4 chords) from the leading edge with a maximum thickness of 12% of the chord. The NACA 0015 airfoil is symmetrical, the 00 indicating that it has no camber. The 15 indicates that the airfoil has a 15% thick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft First Flown In 1944
An aircraft ( aircraft) is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or the dynamic lift of an airfoil, or, in a few cases, direct downward thrust from its engines. Common examples of aircraft include airplanes, rotorcraft (including helicopters), airships (including blimps), gliders, paramotors, and hot air balloons. Part 1 (Definitions and Abbreviations) of Subchapter A of Chapter I of Title 14 of the U. S. Code of Federal Regulations states that aircraft "means a device that is used or intended to be used for flight in the air." The human activity that surrounds aircraft is called ''aviation''. The science of aviation, including designing and building aircraft, is called ''aeronautics.'' Crewed aircraft are flown by an onboard pilot, whereas unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Aircraft may be classified by different criteria, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mid-wing Aircraft
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 wings. A monoplane has inherently the highest efficiency and lowest drag of any wing configuration and is the simplest to build. However, during the early years of flight, these advantages were offset by its greater weight and lower manoeuvrability, making it relatively rare until the 1930s. Since then, the monoplane has been the most common form for a fixed-wing aircraft. Characteristics Support and weight The inherent efficiency of the monoplane is best achieved in the cantilever wing, which carries all structural forces internally. However, to fly at practical speeds the wing must be made thin, which requires a heavy structure to make it strong and stiff enough. External bracing can be used to improve structural efficiency, reducing weight and cost. For a wing of a given size, the weight reduction allows it to fly slower ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1940s Finnish Fighter Aircraft
Year 194 ( CXCIV) was a common year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Septimius and Septimius (or, less frequently, year 947 ''Ab urbe condita''). The denomination 194 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Decimus Clodius Septimius Albinus Caesar became a Roman Consul. * Battle of Issus: Septimius Severus marches with his army (12 legions) to Cilicia, and defeats Pescennius Niger, Roman governor of Syria. Pescennius retreats to Antioch, and is executed by Severus' troops. * Septimius Severus besieges Byzantium (194–196); the city walls suffer extensive damage. Asia * Battle of Yan Province: Warlords Cao Cao and Lü Bu fight for control over Yan Province; the battle lasts for over 100 days. * First year of the ''Xingping'' era during the Han Dynasty in Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valmet Aircraft
Valmet Oyj, a Finnish company, is a developer and supplier of process technologies, automation systems and services for the pulp (paper), pulp, paper, energy industry, energy industries. Flow control serves a wider base of process industries. History 1999–2012 Valmet and Rauma merge as Metso At the end of 2009, Metso acquired Tamfelt Corporation, one of the world's leading suppliers of technical textiles. Valmet 2020– At the end of June 2020, Neles was separated from Metso. The State of Finland sold its share of 15 per cent to Valmet. In mid-July, the Swedish company Alfa Laval made an offer to buy Neles. Valmet's CEO Laine rebuked the board of Neles for ill-advised actions and accepting a price that was too low. Laine had previously managed the business operations of Neles and thought that Valmet could in time have bought more of its stock. Alfa Laval's CEO said that they had bought Neles at a “pandemic discount,” and the front page of the Swedish financial newspa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Aircraft Of World War II
The list of aircraft of World War II includes all of the aircraft used by countries which were at war during World War II from the period between when the country joined the war and the time the country withdrew from it, or when the war ended. Aircraft developed but not used operationally in the war are in the prototypes section at the bottom of the page. Prototypes for aircraft that entered service under a different design number are ignored in favor of the version that entered service. If the date of an aircraft's entry into service or first flight is not known, the aircraft will be listed by its name, the country of origin or major wartime users. Aircraft used for multiple roles are generally only listed under their primary role unless specialized versions were built for other roles in significant numbers. Aircraft used by neutral countries such as Spain, Switzerland and Sweden (or countries which did no significant fighting such as most of those in South America) are not include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grumman F4F Wildcat
The Grumman F4F Wildcat is an American carrier-based A carrier-based aircraft (also known as carrier-capable aircraft, carrier-borne aircraft, carrier aircraft or aeronaval aircraft) is a naval aircraft designed for operations from aircraft carriers. Carrier-based aircraft must be able to launch ... fighter aircraft that entered service in 1940 with the United States Navy, and the British Royal Navy where it was initially known as the Martlet. First used by the British in the North Atlantic, the Wildcat was the only effective fighter available to the United States Navy and Marine Corps in the Pacific Theater during the early part of the Second World War. The disappointing Brewster Buffalo was withdrawn in favor of the Wildcat and replaced as aircraft became available. With a top speed of , the Wildcat was outperformed by the faster [], more maneuverable, and longer-ranged Mitsubishi A6M Zero. US Navy pilots, including John Thach, John "Jimmy" Thach, a pioneer of fighter t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LKk/42 Machine Gun
Browning Aircraft Machine Gun - F.N. Caliber 13.2 mm (), more commonly known as the ''13.2 mm FN Browning'', but also ''13.2 mm Browning-F.N.'', ''F.N. Caliber 13.2 mm'', ''FN Browning M.1939'' and the like, was a caliber, shell-firing, heavy machine gun for aircraft use, designed by Fabrique Nationale (FN) in Herstal, Belgium, as a private export venture during the final years prior to World War II. Even though it gained great interest during its limited time on the export market, it only managed to be exported to the air forces of Romania and Sweden prior to the German invasion of Belgium in 1940, later also being pirate produced in Finland with the help from Sweden. Development and description The 13.2 mm FN Browning was developed by FN as an improved version of the Browning air-cooled MG53 aircraft machine gun. Improvements to the original design included: making the weapon lighter, increasing the rate of fire and offering it in not just 12.7×99mm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Finland Aviation Museum
The Finnish Air Force Museum (), formerly the Aviation Museum of Central Finland (), is an aviation museum located near Jyväskylä Airport in Tikkakoski, Jyväskylä, Finland. The museum exhibits the aviation history of Finland, from the early 1900s until today. The museum is owned by the Foundation of Aviation Museum of Central Finland (). The exhibition consists of aircraft, engines and aircrew equipment which has been used by the Finnish Air Force. The equipment of the Air Force Signals Museum has its own section. A large collection of scale models gives a wider perspective to the whole field of aviation. The museum has around 25,000 visitors. Aircraft The following aircraft are a selection of the collection. More aircraft are being stored elsewhere, waiting for restoration. * Avro 504K * Bell P-39 Airacobra * Brewster Buffalo * Bristol Blenheim * De Havilland D.H.60 Moth, De Havilland D.H.60X Moth * DH Vampire Mk.52, De Havilland D.H. 115 Vampire Trainer T.Mk.55 * Douglas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fighter Aircraft
Fighter aircraft (early on also ''pursuit aircraft'') are military aircraft designed primarily for air-to-air combat. In military conflict, the role of fighter aircraft is to establish air supremacy, air superiority of the battlespace. Domination of the airspace above a battlefield permits bombers and attack aircraft to engage in tactical bombing, tactical and strategic bombing of enemy targets, and helps prevent the enemy from doing the same. The key performance features of a fighter include not only its firepower but also its high speed and maneuverability relative to the target aircraft. The success or failure of a combatant's efforts to gain air superiority hinges on several factors including the skill of its pilots, the tactical soundness of its doctrine for deploying its fighters, and the numbers and performance of those fighters. Many modern fighter aircraft also have secondary capabilities such as ground-attack aircraft, ground attack and some types, such as fighter-b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
