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HERC JOV-3
The HERC JOV-3 was a two-seat tandem helicopter originally designed by Drago Jovanovich at the Helicopter Engineering Research Corporation (HERC). The helicopter first flew in 1948.McCulloch YH-30 MC-4C, Harold A. Skaarup, Alabama Warbird Survivors 2003: A Handbook on Where to Find Them, Writers Club Press, 2002, , pages 98-100 When McCulloch Aircraft Corporation purchased HERC they improved the design for prospective military use and it became the McCulloch MC-4 The McCulloch Model MC-4 was an American tandem-rotor helicopter and was the first helicopter developed by McCulloch Aircraft Corporation, a division of McCulloch Motors Corporation.Harding, Stephen ''U.S. Army Aircraft Since 1947'', Airlife Pub .... References External links '' "Cutting 'Copter Costs" '', March 1948, Popular Science {{McCulloch aircraft Tandem rotor helicopters 1940s United States helicopters Single-engined piston helicopters Aircraft first flown in 1948 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drago Jovanovich
Dragoljub Kosta Jovanovich (January 24, 1916 – November 12, 1983), also known under his pen name D. K. or "Gish" Jovanovich, was a Serbian-American helicopter designer, inventor, and pioneer in autogyro technology. Born in the Kingdom of Yugoslavia, he subsequently moved to the United States, living first in Philadelphia and later in southern California. Piasecki and HERC Jovanovich and Frank Kozloski founded the Helicopter Engineering Research Corporation (HERC) in Philadelphia, Pennsylvania in 1946. HERC was the predecessor of Jovair. Jovanovich and Kozloski previously worked for Piasecki Helicopter Corporation where Jovanovich's patented tandem rotary design was used on the Piasecki PV-3. The first helicopter they designed was the HERC JOV-3. This was first flown in 1948. They used the Boulevard Airport (formerly William Penn Airport) as their base. McCulloch In 1949 Jovanovich and Kozloski transferred to the McCulloch Aircraft Corporation, the new helicopter and aircraf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helicopter Engineering Research Corporation
__NOTOC__ D K Jovanovich and Frank Kozloski founded the Helicopter Engineering Research Corporation in Philadelphia, Pennsylvania, in 1946, the predecessor of Jovair. In 1949 Jovanovich and Kozloski transferred to the McCulloch Aircraft Corporation, the aircraft division of the McCulloch Motors Corporation McCulloch Motors Corporation is an American manufacturer of chainsaws and other outdoor power tools. The company was founded in Milwaukee, Wisconsin, in 1943 by Robert Paxton McCulloch as a manufacturer of small two-stroke gasoline engines and ..., along with its two most promising designs, the J-2 and the JOV-3. In 1960 D K Jovanovich formed Jovair Corporation in El Segundo, California. References * Companies based in Philadelphia Companies based in El Segundo, California Defunct helicopter manufacturers of the United States {{aero-corp-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McCulloch Aircraft Corporation
__NOTOC__ The McCulloch Aircraft Corporation was the aircraft division of the McCulloch Motors Corporation. McCulloch acquired Helicopter Engineering Research Corp in 1951. It manufactured two innovative helicopter designs – the tandem-rotor MC-4 and the J-2 autogyro. Rights to the twin-rotor MC-4 was sold back to the original designer, Drago Jovanovich, in 1957. Rights to the J-2 autogyro were sold to Aero Resources (Gardena, California) in 1974 Major events in 1974 include the aftermath of the 1973 oil crisis and the resignation of United States President Richard Nixon following the Watergate scandal. In the Middle East, the aftermath of the 1973 Yom Kippur War determined politics; f .... References * * https://web.archive.org/web/20090108062245/http://www.shanaberger.com/mcculloch.htm External links {{McCulloch aircraft Defunct aircraft manufacturers of the United States Defunct helicopter manufacturers of the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McCulloch MC-4
The McCulloch Model MC-4 was an American tandem-rotor helicopter and was the first helicopter developed by McCulloch Aircraft Corporation, a division of McCulloch Motors Corporation.Harding, Stephen ''U.S. Army Aircraft Since 1947'', Airlife Publishing, Ltd. 1990. It was evaluated by the United States Army as the YH-30 and the United States Navy as the XHUM-1. Design and development The MC-4 was a larger version of the earlier HERC JOV-3 tandem-rotor helicopter and was developed by the McCulloch Aircraft Corporation. The JOV-3 was developed by Jovanovich when he headed the Helicopter Engineering and Research Corporation. The JOV-3 first flew in 1948. In 1949 Jovanovich moved to the McCulloch Motors Corporation where an enlarged helicopter the MC-4 first flew in March 1951. It was followed by a similar MC-4C and three evaluation helicopters for the United States Army (as the YH-30). The MC-4C was slightly larger than the MC-4. When the MC-4C was certified in 1953 it was the fir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tandem Rotor Helicopters
Tandem, or in tandem, is an arrangement in which a team of machines, animals or people are lined up one behind another, all facing in the same direction. The original use of the term in English was in ''tandem harness'', which is used for two or more draft horses, or other draft animals, harnessed in a single line one behind another, as opposed to a pair, harnessed side by side, or a team of several pairs. The tandem harness allows additional animals to provide pulling power for a vehicle designed for a single animal. The English word ''tandem'' derives from the Latin adverb , meaning ''at length'' or ''finally''. It is a word play, using the Latin phrase (referring to time, not position) for English "at length, lengthwise". Tandem bicycles are named for their tandem seating, a more common arrangement than side-by-side "sociable" seating. ''Tandem'' can also be used more generally to refer to any group of persons or objects working together, not necessarily in line. Automo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1940s United States Helicopters
Year 194 ( CXCIV) was a common year starting on Tuesday (link will display the full calendar) 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 * Emperor Septimius Severus and Decimus Clodius Septimius Albinus Caesar become Roman Consuls. * 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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