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An ejection fraction (EF) is the volumetric fraction (or portion of the total) of fluid (usually blood) ejected from a chamber (usually the heart) with each contraction (or heartbeat). It can refer to the cardiac atrium , [ 1 ] ventricle , [ 2 ] gall bladder, [ 3 ] or leg veins, [ 4 ] although if unspecified it usually refers to the left ...
The Royal Aircraft Factory B.E.2 is a British single-engine tractor two-seat biplane, designed and developed at the Royal Aircraft Factory.Most of the roughly 3,500 built were constructed under contract by private companies, including established aircraft manufacturers and firms new to aircraft construction.
Composite Simpson's 3/8 rule is even less accurate. Integration by Simpson's 1/3 rule can be represented as a weighted average with 2/3 of the value coming from integration by the trapezoidal rule with step h and 1/3 of the value coming from integration by the rectangle rule with step 2h. The accuracy is governed by the second (2h step) term.
The F.E.2b and F.E.2d variants remained in day operations well into 1917, while the "b" continued as a standard night bomber until August 1918. At its peak, the F.E.2b equipped 16 RFC squadrons in France and six Home Defence squadrons in England. On 18 June 1916, German flying ace Max Immelmann was killed in combat with F.E.2bs of No. 25 ...
Data from Aircraft Profile No. 21: The Bristol Fighter General characteristics Crew: 2 Length: 25 ft 10 in (7.87 m) Wingspan: 39 ft 3 in (11.96 m) Height: 9 ft 9 in (2.97 m) Wing area: 405 sq ft (37.6 m 2) Empty weight: 2,145 lb (973 kg) Max takeoff weight: 3,243 lb (1,471 kg) Powerplant: 1 × Rolls-Royce Falcon III V-12 liquid-cooled piston engine, 275 hp (205 kW) Propellers: 2-bladed fixed ...
Listed in approximate chronological order (per Simpson, 2001, p. 573) First letter of designation refers to engine installed. From 1936 Waco added year suffixes to designations—e.g. YPF-6, YPF-7, with the numeral being the last digit of the model year. INF 125 hp (93 kW) Kinner B-5, certified ATC# 345 on 2 August 1930. KNF
A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While a biplane wing structure has a structural advantage over a monoplane, it produces more drag than a ...
Certified versions of the Pitts are now produced by Aviat Aircraft in Afton, Wyoming.It is available as the S-1 single-seater with an up to 200 hp (150 kW) flat-4 Lycoming engine and a 17 ft 4 in (5.28 m) wingspan, or as the S-2 two-seater variant featuring a 260 hp (194 kW) flat-6 Lycoming and a 20 ft (6.1 m) wingspan.