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Find link is a tool written by Edward Betts.searching for Propulsive efficiency 44 found (136 total)
alternate case: propulsive efficiency
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AWJ-21, a propulsion concept with the goals of providing increased propulsive efficiency, reduced acoustic signature, and improved maneuverability over previousPropulsive wing (700 words) [view diff] exact match in snippet view article find links to article
distributed boundary-layer ingestion and wake filling increase propulsive efficiency, while distributed vectored thrust provides substantial improvementsStrouhal number (3,024 words) [view diff] exact match in snippet view article find links to article
peak-to-peak oscillation amplitude. In animal flight or swimming, propulsive efficiency is high over a narrow range of Strouhal constants, generally peakingFinning techniques (3,102 words) [view diff] exact match in snippet view article find links to article
most appropriate finning style for the circumstances can increase propulsive efficiency, reduce fatigue, improve precision of maneuvering and control ofJet engine performance (16,868 words) [view diff] exact match in snippet view article find links to article
performance-enhancing features such as the existence of bypass airflow (increased propulsive efficiency) only visually obvious on engines with a separate exit nozzle forNozzle (1,068 words) [view diff] exact match in snippet view article find links to article
produce thrust but an excessive speed difference wastes fuel (poor propulsive efficiency). Jet engines for subsonic flight use convergent nozzles with aPulsed plasma thruster (1,093 words) [view diff] exact match in snippet view article find links to article
heat transfer from the propellant to the rest of the spacecraft, propulsive efficiency (kinetic energy of exhaust / total energy used) is very low comparedDucted propeller (993 words) [view diff] exact match in snippet view article find links to article
1931 and later Ludwig Kort (1934) demonstrated that an increase in propulsive efficiency could be achieved by surrounding the propeller with a foil-shapedCessna XMC (520 words) [view diff] exact match in snippet view article find links to article
shrouded propeller to explore two design areas: improvement of the propulsive efficiency and noise reduction. The spatted nose gear was replaced by a wheelGas turbine (12,131 words) [view diff] exact match in snippet view article find links to article
ducted fan (turbofan) to reduce fuel consumption (by increasing propulsive efficiency) at subsonic flight speeds. An extra turbine is also required toNautilus (5,518 words) [view diff] exact match in snippet view article find links to article
PMID 21347356. Neil, T. R.; Askew, G. N. (2018). "Swimming mechanics and propulsive efficiency in the chambered nautilus". Royal Society Open Science. 5 (2): 170467Space launch (2,123 words) [view diff] exact match in snippet view article find links to article
than this is needed to be expended due to losses such as airdrag, propulsive efficiency, cycle efficiency of engines that are employed and gravity dragSovetsky Soyuz-class battleship (4,867 words) [view diff] exact match in snippet view article find links to article
with similarly shaped motor launches suggested that the hull's propulsive efficiency would be 1 knot (1.9 km/h; 1.2 mph) less than planned, and thisAerospace (3,528 words) [view diff] exact match in snippet view article find links to article
core stream and a bypass stream with a lower velocity for better propulsive efficiency: the first was the Rolls-Royce Conway with a 0.3 BPR on the BoeingWilliam Froude (1,029 words) [view diff] case mismatch in snippet view article find links to article
April 1878). "The Elementary Relation between Pitch, Slip, and Propulsive Efficiency". Transactions of the Royal Institution of Naval Architects. 19:Rolladen-Schneider LS8 (1,604 words) [view diff] exact match in snippet view article find links to article
small diameter 'paddle' propeller that sacrifices a small amount of propulsive efficiency in exchange for much smaller drag if the engine fails to start.Propfan (8,449 words) [view diff] case mismatch in snippet view article find links to article
54. OCLC 969306167. Kinney, Jeremy R. (2017). "4: The Quest for Propulsive Efficiency, 1976–1989" (PDF). The power for flight: NASA's contributions toFront crawl (2,762 words) [view diff] exact match in snippet view article find links to article
have shown that very small changes in the arm stroke can impact propulsive efficiency. For example, position of fingers: "Most studies concluded thatOrnithopter (4,176 words) [view diff] exact match in snippet view article find links to article
lift of over 8 pounds, an average thrust of 0.88 pounds, and a propulsive efficiency of 54%. The wings were tested in a low-speed wind tunnel measuringNew York-class battleship (3,499 words) [view diff] exact match in snippet view article find links to article
of the preceding class. However, it was discovered that greater propulsive efficiency of the reciprocating engine allowed a reduction in installed powerFin (4,733 words) [view diff] exact match in snippet view article find links to article
effective. It has been calculated that some fish can achieve a propulsive efficiency greater than 90%. Fish can accelerate and maneuver much more effectivelyWebbed foot (3,158 words) [view diff] exact match in snippet view article find links to article
webbed feet, with a broad distal end, is specialized to increase propulsive efficiency by affecting a larger mass of water over generating increased liftTwin-boom aircraft (1,750 words) [view diff] exact match in snippet view article find links to article
requiring either a very long driveshaft or jet pipe and thus reducing propulsive efficiency. The twin-boom configuration allows a much shorter and more efficientEnergy conversion efficiency (3,014 words) [view diff] exact match in snippet view article find links to article
original (PDF) on October 7, 2008. "11.5 Trends in thermal and propulsive efficiency". web.mit.edu. Retrieved 2016-10-26. Govindjee, What is photosynthesisDassault Mirage 2000N/2000D (3,363 words) [view diff] exact match in snippet view article find links to article
100 ft/min) Wing loading: 410 kg/m2 (84 lb/sq ft) Thrust/weight: *Propulsive efficiency: 0.91 (non dimensional) Armament Hardpoints: 4× under-wing, 4× underKronshtadt-class battlecruiser (4,119 words) [view diff] exact match in snippet view article find links to article
would use three shafts increased the shaft loading and reduced propulsive efficiency, although it did shorten the length of the armored citadel and thusBaldwin Mono Tiltrotor (1,351 words) [view diff] exact match in snippet view article find links to article
capacity, engine power required and power available, cruise thrust and propulsive efficiency, aircraft weight, and airplane mode cruise lift. Bell HelicopterBlade element momentum theory (4,343 words) [view diff] case mismatch in snippet view article find links to article
April 1878). "The Elementary Relation between Pitch, Slip, and Propulsive Efficiency". Inst. Naval Architects. 19: 47 – via Hathi Trust. Wilson, RobertHeritage-class cutter (2,800 words) [view diff] exact match in snippet view article find links to article
propellers (CPP), shaft lines, and Promas rudders, which offer increased propulsive efficiency and improved maneuverability. The Promas rudder, combined with theDiver trim (2,513 words) [view diff] exact match in snippet view article find links to article
larger proportion of the total ballast, but do not interfere with propulsive efficiency the way ankle weights do. However, they may adversely affect rollPhysiology of underwater diving (15,297 words) [view diff] exact match in snippet view article find links to article
Swimming efficiency also affects diving ability, as low drag and high propulsive efficiency requires less energy for the same dive. Burst and glide locomotionBritish T-class submarine (6,621 words) [view diff] exact match in snippet view article find links to article
6,400 m (7,000 yd) at 41 kn (76 km/h; 47 mph). It had a greater propulsive efficiency than any contemporary torpedo of a similar size but shortages ofFish fin (7,622 words) [view diff] exact match in snippet view article find links to article
effective. It has been calculated that some fish can achieve a propulsive efficiency greater than 90%. Fish can accelerate and maneuver much more effectivelyUnmanned aerial vehicle (12,676 words) [view diff] exact match in snippet view article find links to article
are under development with the goal of improving aerodynamic and propulsive efficiency. For such complex power installations, Battery elimination circuitryBio-inspired robotics (3,194 words) [view diff] exact match in snippet view article find links to article
landing. It is calculated that when swimming some fish can achieve a propulsive efficiency greater than 90%. Furthermore, they can accelerate and maneuverRobotics (14,146 words) [view diff] exact match in snippet view article find links to article
pole. It is calculated that when swimming some fish can achieve a propulsive efficiency greater than 90%. Furthermore, they can accelerate and maneuverAirbreathing jet engine (5,999 words) [view diff] exact match in snippet view article find links to article
nozzle to produce a high speed propelling jet Turbojets have a low propulsive efficiency below about Mach 2[citation needed] and produce a lot of jet noiseHuman factors in diving equipment design (19,053 words) [view diff] exact match in snippet view article find links to article
stroke, requiring additional power input for finning and reducing propulsive efficiency. The ability to shed ballast weight is considered a safety featureBlade element theory (4,613 words) [view diff] case mismatch in snippet view article find links to article
April 1878). "The Elementary Relation between Pitch, Slip, and Propulsive Efficiency". Inst. Naval Architects. 19: 47 – via Hathi Trust. This fact, whichDiving weighting system (7,878 words) [view diff] exact match in snippet view article find links to article
larger proportion of the total ballast, but do not interfere with propulsive efficiency the way ankle weights do. There are not really any other convenientPropeller theory (3,056 words) [view diff] exact match in snippet view article find links to article
\scriptstyle P'_{D}} ) is termed relative rotative efficiency. The overall propulsive efficiency (an extension of effective power ( P E {\displaystyle \scriptstyleHuman physiology of underwater diving (11,742 words) [view diff] exact match in snippet view article find links to article
Swimming efficiency also affects diving ability, as low drag and high propulsive efficiency requires less energy for the same dive. Burst and glide locomotionFuture Vertical Lift (7,137 words) [view diff] exact match in snippet view article find links to article
configuration offers advantages in weight, drive train, and aerodynamic and propulsive efficiency. It has high speed, "robust" hover performance at altitude, higherCompressor map (6,246 words) [view diff] exact match in snippet view article find links to article
interstage bleed. It was better known as an arrangement for better propulsive efficiency, a bypass engine. The Pratt & Whitney J58 used interstage overboard