specific fuel consumption
11Specific impulse — (usually abbreviated I sp) is a way to describe the efficiency of rocket and jet engines. It represents the impulse (change in momentum) per unit of propellant. The higher the specific impulse, the less propellant is needed to gain a given amount …
12Specific thrust — is a term used in Gas Turbine Engineering to show the relative bulk of a jet engine (e.g. turbojet, turbofan, etc) and is defined as the ratio: net thrust/total intake airflow. Low specific thrust enginesA modern civil turbofan has a low specific …
13consumption — The act of using up an amount of fuel. Actually the fuel is joined with air and merely changed into other substances (Carbon Dioxide, Carbon Monoxide, etc. and energy). Also see fuel consumption indicator fuel consumption oil consumption specific …
14Fuel fraction — An aircraft s fuel fraction, fuel weight fraction, [cite book | last = Brandt | first = Steven | title = Introduction to Aeronautics: a Design Perspective | publisher = AIAA (American Institute of Aeronautics Ast | pages = p. 359 | year = 2004 |… …
15Specific properties — ve properties] ) of that substance. For example, the density of steel (a specific and intrinsic property) can be derived from measurements of the mass of a steel bar (an extrinsic property) divided by the volume of the bar (another extrinsic… …
16Fuel economy in automobiles — Fuel consumption monitor from a 2006 Honda Airwave …
17Fuel saving device — Fuel saving devices are sold on the aftermarket with claims to improve the fuel economy and/or the exhaust emissions of a vehicle. There are numerous different types of device; many purport to optimize ignition, air flow, or fuel flow in some way …
18Fuel starvation — and fuel exhaustion (sometimes referred to as fuel depletion) are problems that can affect internal combustion engines fuelled by either diesel, kerosene, petroleum or any other combustible liquid or gas. If no fuel is available for an engine to… …
19Fuel efficiency in transportation — This page describes fuel efficiency in means of transportation. For the environmental impact assessment of a given product or service throughout its lifespan, see life cycle assessment. Caveats Comparing Fuel efficiency in transportation is a bit …
20specific air range — The ratio between true air speed and gross fuel consumption expressed as air nautical miles per gallon or pound of fuel. It is a measure of the fuel efficiency of the aircraft …
