Boeing FB-5 Hawk

Boeing FB-5 Hawk
Maa	Yhdysvallat
Tyyppi	Hävittäjälentokoneet

Nniiden Boeing-malli 15 oli 1920-luvun yhdysvaltalainen avoohjaamoinen kaksitasoinen hävittäjälentokone, jonka valmisti Boeing-yhtiö. Malli 15 palveli Yhdysvaltain armeijan ilmapalvelussa (PW-9-sarjana) ja Yhdysvaltain laivaston kanssa kuljettajapohjaisena hävittäjänä (FB-sarjana).

FB-5 : 27 rakennettu, tuotantoversio. Voimanlähteenä 520 hv (390 kW) Packard 2A-1500 -moottori. Boeing-malli 67.

Lähde: Wikipedia Nähty foorumilla japan-militaire.com

Boeing FB-5 Hawk – Walk Around
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The Navy’s Hard-Hitting Biplane

Nniiden Boeing FB-5 was the definitive version of the early Boeing “Hawk” family developed specifically for the U.S. Navy and Marine Corps. While the Army was flying the nearly identical PW-9, the FB-5 was built to survive the rigors of naval life. Introduced in 1927, it was designed with strengthened landing gear for carrier deck landings and featured a more powerful engine than its predecessors. It was the aircraft that proved Boeing could build high-performance naval fighters, a lineage that would eventually lead to the P-12 and F4B.

Attribute	Technical Specification (FB-5)
Rooli	Carrier-Based Fighter (Pursuit)
miehistö	1 (Pilot)
Moottori	1 × Packard 1A-1500 V-12 liquid-cooled (520 hp)
Enimmäisnopeus	283 km/h (176 mph)
Aseistus	2 × .30 cal machine guns (or 1 × .30 and 1 × .50 cal)
Service Ceiling	5,400 m (17,800 ft)
Gross Weight	1,481 kg (3,265 lbs)
Main User	U.S. Navy (Squadrons VF-1B and VF-6B)

Design Engineering: Built for the Boat

Strengthened Undercarriage: Unlike its Army counterparts, the FB-5 featured a reinforced split-axle landing gear. This was necessary to absorb the violent “controlled crashes” inherent in early carrier landings on the USS Langley Ja USS Saratoga.
The Packard V-12: The move to the Packard 1A-1500 engine provided a significant power boost over earlier models. The cooling system used a distinctive “tunnel radiator” located beneath the engine, which gave the nose its unique, bulky appearance.
Tapered Wing Design: The FB-5 used a high-strength, tapered-wing design with a thick airfoil section. This provided excellent lift for short carrier take-offs while maintaining the structural integrity needed for high-speed maneuvers.
Carrier Adaptations: For easier handling on cramped flight decks, the FB-5 included a hoisting sling integrated into the upper wing center section, allowing it to be lifted by cranes directly onto or off of ships.

Operational History: Defining Naval Aviation

The “High Hat” Squadron: The FB-5 famously served with VF-1B, the “High Hats,” one of the most prestigious early Navy fighter squadrons. They used the FB-5 to develop the dive-bombing and aerial combat tactics that would become standard in WWII.
Carrier Capability: While many were operated from land bases, the FB-5 was a key player in proving that high-speed fighters could successfully operate from the Navy’s first true aircraft carriers.
Rapid Obsolescence: As fast as technology was moving in the late 1920s, the liquid-cooled FB-5 was soon overshadowed by the more reliable and easier-to-maintain radial-engine fighters like the Boeing F2B Ja F3B.
The Marine Corps Role: Beyond the Navy, the FB-5 was also operated by the U.S. Marines, providing essential air support and reconnaissance during the “Banana Wars” period in Central America.