Louis Langhurst

Louis Francis Langhurst (22 Jan. 1907 - 17 May 1995) was an American engineer and inventor. Born in Cedar Rapids, Iowa, he is best known for building a 7/10-scale flying replica of Germany’s feared Junkers Ju 87 Stuka dive-bomber.

Birth of an idea

In 1970, while living on a farm in Carriere, Mississippi, Louis Langhurst first got the idea of building a replica Junkers Ju-87 Stuka, a two-seat monoplane dive-bomber used by Germany’s Luftwaffe (Air Force) during WWII. With no original plans available, Langhurst spent the next three years gathering and studying research materials on the aircraft and making the necessary aerodynamic calculations in order to draft plans for a 7/10th scaled-down version. By April 1973, he had enough drawings completed to actually begin cutting metal. Langhurst opted for all-metal construction based on the parameters he had set for the scale replica and also because he felt his metal-working skills were superior to those he had working with wood.

Langhurst chose to build a replica of the Ju 87B-2 as this version was in production at the outbreak of WWII and constituted the largest number of all Stukas built during the war. He housed the project in a shed on his farm and was later granted permission to build an airstrip on his property from which to fly the completed aircraft. By his own estimation, Langhurst spent 8,000 man-hours working on his Stuka.

After much consideration, Langhurst decided on painting the aircraft in the same scheme and unit markings as that of Germany’s most highly decorated Stuka pilot, Oberst Hans-Ulrich Rudel, who commanded III Gruppe/Stuka Geschwader 2 Immelman (III./StG2) on the Eastern Front during WWII. The plane was assigned the official FAA registration tail code N87LL and sports the registration code T6+AD along the fuselage.

Flight Testing

By July 1978, Langhurst’s replica Stuka was complete and ready for flight testing. Following an inspection of the aircraft, the FAA agent in Jackson Mississippi issued temporary airworthiness papers so that testing could begin. Initially the plane’s wheel pants, dive brakes, machine guns and dummy center line-mounted bomb were left off so as to conduct testing of the aircraft in a “clean” condition. Later in the program, these items were individually added back on to determine how they affected the plane’s overall handling characteristics.

Among the initial problems encountered with the aircraft were flight controls out of adjustment, inadequate braking action and shimmying of the tail wheel. None of these posed any serious impediments to the aircraft’s basic aerodynamic performance, however, and all were eventually corrected. A flight accident occurred when one of the test pilots applied the brakes too hard upon landing, tipping the aircraft nose first and wrecking the plane’s propeller. Langhurst had to wait eight months for the manufacture of a new custom-made propeller.

By July 1979 the flight testing and necessary flying time were finished and the FAA lifted the temporary restrictions. Langhurst had long planned on taking the plane to the annual EAA Fly-In at Oshkosh, WI and, with his friend Col. Reggie Braddock at the controls and Langhurst occupying the backwards-facing rear gunner’s seat, made the 900 mile trip that summer. Langhurst had attended the Fly-In for the past 15 years but this was the first time he had his own home-built aircraft to bring along.

In talking over the Ju 87 Stuka’s actual flight characteristics with several former Luftwaffe pilots, who had flown them during the war, Langhurst felt his replica shared many similarities, chiefly the quick responsiveness of the controls and the need to “…fly the airplane all the time you are in it” and the ability to land it three point or on two wheels with equal ease. In November 1980, former Stuka pilot Hans-Ulrich Rudel himself had a chance to fly in Langhurst’s replica and declared that its flying characteristics closely hewed to the original.

Ownership history

In 1981, after 175 hours of flight time, Langhurst loaned his home-built Stuka to the San Diego Aerospace Museum (now the San Diego Air and Space Museum) where it was placed on display for the next ten years. The aircraft was then sold to newspaper editor Roland Weeks of Biloxi, Mississippi. In 2002, Weeks sold the plane to Mitch Sammons of Augusta, Maine where the plane now resides and is a frequent performer at local air shows.

Other Stuka replicas

A second flyable Stuka replica, possibly based on Langhurst’s plans, was completed by Richard Kurzenberger in 1987 in Elmira, New York. It was given the FAA registration code N87DK and sported the fuselage registration code T6+KL. It remained based in Elmira for the next twelve years until it was sold in 2000 with an accrued flight time of 354 hours. The new owner, making his first familiarization flight in the aircraft, crashed upon take-off from the Faux-Burhans Airport in Urbana, Maryland on 26 May, 2000 and died from his injuries. He had purchased the plane just two weeks earlier. The aircraft was so badly damaged from both the crash impact and subsequent fire that it was written off.

Langhurst Stuka Specifications

Data from Military Aircraft Replicas: A New Era in Flight

General characteristics

• Crew: 2

Performance Armament

• Guns:
  
  • 2× 7.92 mm (0.312 in) dummy machine guns in wings
  • 1× 7.92 mm (0.312 in) dummy machine gun on flexible mount, rear cockpit
• Bombs:
  
  • 250 kg (551 lb) dummy bomb mounted along center line of fuselage
  • 4× 50 kg (110 lb) dummy bombs mounted near wingtips

Bibliography

• Langhurst, Louis F. (1974). "7/10 Stuka Project Report". Sport Aviation. {{cite journal}}: Cite journal requires |journal= (help); Unknown parameter |month= ignored (help)
• Langhurst, Louis F. (1975). "Stuka Project Update". Sport Aviation. {{cite journal}}: Cite journal requires |journal= (help); Unknown parameter |month= ignored (help)
• Langhurst, Louis F. (1979). "Stuka Over Oshkosh!". Sport Aviation. {{cite journal}}: Cite journal requires |journal= (help); Unknown parameter |month= ignored (help)
• Langhurst, Louis F. (1983). Military Aircraft Replicas: A New Era in Flight. Lourene Ventures.
• Sammons, Mitch (2008). "The Langhurst Stuka". Warbirds, Vol. 31, no.2. {{cite journal}}: Cite journal requires |journal= (help); Unknown parameter |month= ignored (help)

External links

• 7/10 Stuka Project Report / Sport Aviation Aug. 1974
• Stuka Project Update / Sport Aviation Dec.1975
• Stuka Over Oshkosh! / Sport Aviation Oct. 1979
• http://aviation-safety.net/wikibase/wiki.php?id=40690
• http://www.planecrashmap.com/plane/md/N87DK
• Northern Maine International Airshow