Sopwith Triplane N6290 Dixie - Side Profile View

Sopwith Triplane

british flag Great Britain  (1916)
Fighter Plane – 147 Built
The Sopwith Triplane was a creation of Britain’s Sopwith Aviation Company around 1916. Its three stacked wings gave it good maneuverability and stability in flight relative to other planes of the day. The aircraft had the nicknames Tripehound, Trihound, Triplehound, or Tripe and it was popular among pilots. The Triplane first saw service with Royal Navy Air Squadron No.1 in late 1916. Many orders were placed by the RNAS as well as the Royal Flying Corps. Some aircraft were also acquired by the French Navy. One each was sent to Greece and Russia for evaluation. Only two original examples of the Tripe exist today.

Design

Sopwith Triplane Blueprint - Front ViewThe most noticeable aspect of the Triplane is its three wing design, which was one of the first of its kind. In the interest of pilot field of view Chief Engineer Herbert Smith decided to use a narrow chord design, meaning the wings were short as measured from leading edge to trailing edge. Because of the lift lost when narrowing the chord, the third wing was added to the design. All three wings have functional ailerons and the tailplane is a variable incidence type which means it can be trimmed enough for the pilot to fly hands-off. In early 1917 a smaller tailplane was introduced improving maneuverability. The Triplane was fitted with a single Vickers gun.

The Tripehound

Sopwith Triplane Flying

WIth the Tripehound’s entry into active service late in 1916, it quickly proved popular among pilots with its relatively superior maneuverability and speed. The first adversaries the Tripehound went up against were German Albatros D-IIIs which it greatly outclassed in climbing and turning ability, as well as being 15 mph faster. Every engagement with the enemy demonstrated the Triplanes’ superior power.

Clerget Power

Clerget 9 Cylinder Engine HeadThe Triplane was powered first by a Clerget  9B, 9 cylinder rotary engine developing 110 HP (82 kW). This powerplant was built in both France and Great Britain by numerous manufacturers. Later, 130 HP 9B engines were fitted, further enhancing the Triplane’s dominance, although the engine was tuned perhaps too aggressively as it was prone to overheating.

 

 

Sopwith Triplane Specifications

Wingspan  8.07 m / 26 ft 6 in
Length  5.73 m / 18 ft 10 in
Height  3.20 m / 10 ft 6 in
Wing Area 11 m² / 118.4 ft²
Engine 1 air-cooled Clerget 9B 110 HP or 130 HP
Maximum Take-Off Weight 698 Kg / 1,541 lb
Empty Weight 499 kg / 1,101 lb
Maximum Speed 188 km/h / 117 mph
Range 2 hours and 45 minutes
Maximum Service Ceiling 6,248 m / 20,000 ft
Crew 1 (pilot)
Armament 1 synchronized 7.7mm Vickers machine gun

Gallery

Sopwith Triplane Prototype N500 Side Profile View
Sopwith Triplane Prototype N500 – June 1916
Sopwith-Triplane-Prototype-N500-Brown-Bread-Side-Profile-View
Sopwith Triplane Prototype N500 – June 1916 repainted as “Brown Bread”
Sopwith Triplane N5387 Peggy - Side Profile View
Sopwith Triplane N5387 “Peggy” – August 1917
Sopwith Triplane N533 Black Maria - Side Profile View
Sopwith Triplane N533 “Black Maria” – July 1917
Sopwith Triplane N6290 Dixie - Side Profile View
Sopwith Triplane N6290 “Dixie”


Simulated Dogfight in a Triplane

Sources

1 Franks, N. (2004). Sopwith Triplane aces of World War 1. Oxford: Osprey., Images:Sopwith Triplane Flying at Duxford 2012 by AirwolfhoundCC BY-SA 2.0 , Clerget 9B Engine Head by Andy Dingley / CC BY-SA 3.0

Morane-Saulnier N

france flag France (1913)
Monoplane Fighter – 49 Built

Morane Saulnier N - Propeller SpinnerThe Morane-Saulnier N was a mid-wing monoplane aircraft that became the first French fighter aircraft. Built in 1913, it was in service with the Aeronautique Militaire in the early days of WWI. Also used by the British forces, mainly as a fighting scout airplane due to the shortage of similar planes from England. This plane also entered with limited numbers in service with the 19th Squadron of the Russian Air Force. The main roles were interception, scout and fighter. Armed with a single Hotchkiss 7.7 mm or 7.9 mm machine gun – later on with a Vickers gun –, the propeller was equipped with steel deflector plates, as the machine gun fired. At the same time, it was the first fighter plane to incorporate a rudimentary version of a synchronizing gear for the machine gun, so the weapon could fire between the blades of the propeller. Given its imperfection, the aforementioned plates were necessary to prevent “loose” bullets to damage the blades. But it was also the first model to incorporate a machinegun in a single seated aircraft, as previous models use to have an additional man to serve the machine gun. Dubbed as “the Bullet” by the Royal Flying Corps pilots due to the shape of the spinner.

Design

Morane Saulnier N - Vintage PhotographA Monocoque mid-wing aircraft, the airscrew had a large spinner, dubbed ‘la casserole’, that left few openings for cooling the engine. This left the airplane non-operable in hot-weather. The aircraft wings were made of wood with fabric, having flexible tips to allow warping. Despite its monocoque design, in reality the circular section was formed by a wooden frame with fitted light stringers. The elevator was fitted to a triangular fin, while the undercarriage usually had a M shape. These characteristics made of the Saulnier N a very aerodynamic airplane, but also a quite complicated plane to control. The aircraft was a lightweight at a point that it had a very fast landing speed and rather complicated handling, as the controls were very sensitive.

The Bullet in Service

The Morane-Saulnier N is a plane that, during service made history in many ways. It began its career as most of the military aircraft of the early days of WWI: as an observation and scout plane. After the later-renown aviation pioneer and first combat pilot Roland Garros performed some combat actions in 1915, this airplane became the first fighter engaging in aerial combat on April 1 1915, near the English Channel, in Belgium. As a result of this action, the Saulnier became for a period of time the standard fighter of the Aeronautique Militaire, granting the allies some air superiority. Besides the earlier French Airforce, the Saulnier N entered in service with British Squadrons 3rd and 60th, armed with Lewis Guns, the Russian 19th Squadron and three units with the Ukrainian Air Force.

The ‘Acemaker’

Morane Saulnier N - ReloadingRoland Garros was the first combat pilot while flying with a Saulnier – N, armed with a Hotchkiss machine gun. But the Saulnier N was also the plane where other two WWI French aces became aces. He first was Navarre, who was the first French ace. The second ace was Pegoud, an exhibitions pilot before the war, who shot down six enemy aircraft.

Variations

  • Morane-Saulnier N – Basic Version
  • Morane-Saulnier Nm Variant with re-designed tail section, with limited units
  • Morane-Saulnier I A more powerful version of the Morane-Saulnier N (with a 110 hp Le Rhone engine), which entered in service with the Royal Flying Corps with 4 units. Armed with a Vickers 7,7mm machine gun and having more speed (168 Km/h / 104 mph) and service ceiling (4,700 m / 15,420 ft), but slightly less autonomy than the basic model (10 minutes’ difference). Also a bigger version than the original plane.
  • Morane-Saulnier V The biggest version of the Saulnier N, having more range (up to three hours) thanks to the extra fuel tanks. Problems with controls made the aircraft to serve for only 5 months with the Royal Flying Corps. 18 entered in service with the Imperial Russian Air Service, later serving with the Red Air Fleet during the Russian Revolution.

Morane-Saulnier N Specifications

Wingspan  8.15 m / 26 ft 8 5/8 in
Length  5.83 m / 19 ft 1 ½ in
Height  2.25 m / 7 ft 4 ½ in
Wing Area 11 m² / 118.4 ft²
Engine 1 air-cooled engine Le Rhone 9J 80 HP or 110 HP
Maximum Take-Off Weight 510 Kg / 976 lb
Empty Weight 288 kg / 633 lb
Maximum Speed 165 km/h
Range 1 hour and 30 minutes
Climb to 2000 m 6,560 ft: 10 min
Maximum Service Ceiling 4000 m /13,123 ft
Crew 1 (pilot)
Armament 1 Vickers machine gun 7,7 mm or 7,9 Hotchkiss machine gun

Gallery

Morane Saulnier N - Reloading Morane Saulnier N - Propeller Spinner Morane Saulnier N - Vintage Photograph

Morane Saulnier N - Model Front
France’s Morane Saulnier N

Sources

Berger, R (Ed.). Aviones [Flugzeuge, Vicenç Prat, trans.]. Colonia, Alemania: Naumann & Göbel Verlagsgessellschaft mbH., Fiddlesgreen.net (n.d). Morane-Saulnier N Buller WWI French Scout. In Aircraft., Morane-Saulnier Type N “Bullet” (n.d).Morane-Saulnier N. (2015, November 8). In Wikipedia, The Free Encyclopedia.Morane-Saulnier I. (2015, September 10). In Wikipedia, The Free Encyclopedia.Morane-Saulnier V. (2015, September 10). In Wikipedia, The Free Encyclopedia.,  Military Factory (n.d). Morane-Saulnier Type N Fighter Aircraft (1915)., Guerrero, J. A (May 2008). Los Ases del Aire. Muy Historia. La Primera Guerra Mundial, (17), 74-79., Hernandez, J (2007). Capitulo 6. La Guerra en el Aire. In Rodriguez, S. (Ed.), Todo lo que Debe Saber sobre la Primera Guerra Mundial (147-168). Madrid, Spain: Ediciones Nowtilus, Images: Morane Saulnier N – Model Front by Monika Maratová, Morane Saulnier N – Spinner by Great War ObserverCC BY 2.0