1 edition of Aircraft fuel tank vulnerability to hydraulic ram found in the catalog.
Aircraft fuel tank vulnerability to hydraulic ram
Robert E. Ball
The finite element digital computer code BR-1, developed by the Northrop Corporation, for predicting the effects of internal air blast on combat aircraft structures is modified to include the effects of compressible fluid-structure interaction. The true interaction phenomenon is approximated by the piston theory. The modification enables the code to be used to predict the structural response of aircraft fuel tanks subjected to penetrating bullets and fragments. IT can also be used in many other fluid-structure interaction problems. This report contains the theory, the modifications, and the additional instructions required to operate the modified code, called BR-1HR. The code is operational on the IBM 360/67 in FORTRAN IV, Level H. (Author)
|Statement||by R.E. Ball|
|Contributions||Naval Postgraduate School (U.S.)|
|The Physical Object|
|Pagination||35 p. :|
|Number of Pages||35|
— or in aircraft used by the military, a combination of military fuels — in the tank. The next step is to use an atmospheric monitor to measure the oxygen level in the fuel tank and the LEL of the fuel vapor in the tank. Before workers enter a tank, the oxy-gen level must be . Why is fuel used in some servo-systems as a hydraulic fluid (fueldraulic systems) of modern civil and military aircraft such as the Boeing / (Pratt & Whitney PW) or the Lockheed Martin F Lightning II (Pratt & Whitney F)? Examples for fueldraulics are the actuation of. Fuel Valves, Start Bleed Valves, Cooling Valves.
AIRCRAFT REFUELING HANDBOOK FOR NAVY/MARINE CORPS AIRCRAFT This handbook is for guidance only. Do not cite this document as a requirement. AMSC N/A FSC MIL-HDBKA(AS) 30 December SUPERSEDING MIL-HDBK(AS) 20 October METRIC. Each aircraft fuel servicing vehicle shall be conspicuously and legibly marked with an identification decal to indicate the product contained therein. The markings shall be on each side and the rear of the fueler tank in letters at least 3" in height. (1) Aviation gasolines are identified by using white letters on a blue background for LL or.
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The Potential for Fuel Tank Fire and Hydrodynamic Ram From Uncontained Aircraft Engine Debris January Final Report This document is available to the U.S. public through the National Technical Information Service, Springfield, Virginia U.S.
Department of. R.E. Ball, Aircraft fuel tank vulnerability to hydraulic ram: modification of the Northrup finite element computer code BR-1 to include fluid–structure interaction. Theory and userʼs manual for BR-1HR, NPSB, Julyp.
Cited by: An example of the latter is a fuel ingestion kill of an engine due to a hit on a fuel tank adjacent to the air inlet. Reducing the vulnerability of an aircraft to the threat weapons and their damage mechanisms involves reducing the likelihood the kill modes given in Table will occur when the aircraft is hit.
The fuel system must be able to handle small quantities of water, which may separate from fuel or may result from the condensation of water vapors ingested through the vent system. When the aircraft hydraulic system is cooled through a fuel heat exchanger, there is a potential for hydraulic fluid leakage into the fuel tank.
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On July 21th,the FAA required operators and manufacturers to incorporate a Flammability Reduction Means (FRM) or ignition mitigation means on fuel tanks having a flammability exposure exceeding certain thresholds.
These amendments affect new aircraft types, new aircraft in production and in-service aircraft produced after January 1st, aircraft fuel systems are divided into two categories-the aircraft fuel system and the engine fuel system.
The aircraft fuel system consists of fuel tanks, float-operated transfer valves, selector and shutoff valves, and fuel tank boost pumps.
The engine fuel system includes some combination of different parts. These parts are filters, fuel. Fuel-Tank Hazards The potential dangers that fuel-tank personnel may experience present themselves in one of two forms: Chemical. Physical. CHEMICAL The most commonly recognized hazard of fuel-tank work is the jet fuel itself.
Jet fuel is a flammable liquid and can be ignited given certain ambient conditions, primarily temperature and vapor. Each aircraft fuel system must store and deliver clean fuel to the engine(s) at a pressure and flow rate.
Small single-engine aircraft fuel system types are Gravity Feed Systems, Pump Feed Systems, high-wing, high-performance Aircraft With Fuel Injection System, vary depending on factors, such as tank location and method of metering fuel to the engine.
Aircraft auxiliary fuel tank suitable for piston and turbine planes, designed to sit on a single seat of any aircraft. One fit all, seat fuel tank of 25 and 33 gal. capacity collapsible fuel tank is cylinder shaped and sits as a person, on the seat and secured by the aircraft’s passenger seat belt.
Shoulder or. The most prevalent hazard in aircraft confined space entry comes from the fuel that powers the aircraft. The common types of aircraft fuel are Jet A-1, Jet A, Jet B, JP4, JP5, JP8, and aviation gas. At most airports fuel for aircraft and ground vehicles is stored in aboveground storage tanks (ASTs).
Each State will have their own regulations defining size and number of tanks, locations. Aircraft Fuel System by A ALANKAR. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads.
in aircraft fuel tanks. It also presents a methodology that, within limits, can be used to compare the probability of a flammable mixture in a tank when the fuel temperature, flash point, and/or aircraft altitude are varied.
While adequate for a fuel tank safety analysis to be carried out in the. Conformal fuel tank. Conformal fuel tanks (CFTs) or "fast packs" are additional fuel tanks fitted closely to the profile of an aircraft which extend either the range or endurance of the aircraft, with a reduced aerodynamic penalty compared to external drop tanks.
Drop tank. Drop tanks, external tanks, wing tanks, pylon tanks or belly tanks are all terms used to describe auxiliary externally. Fueling procedure can vary from aircraft to aircraft. The proper procedure before fueling an unfamiliar aircraft. Two types of fueling process are over-the-wing refueling and pressure refueling.
Precautions should be used with either type of fueling. Aviation fuel nozzles are equipped with static bonding wires. Exercise caution to avoid damage to the surface of the airframe by the heavy fuel hose. Aircraft Spruce supplies components for a wide variety of homebuilt aircraft and discount pilot supplies.
A major aircraft manufacturer was developing a means to extend the available flight times of existing aircraft by retrofitting auxiliary fuel tanks into the fuselage. There could be no modifications to the structural frame of the plane, so a means to install this auxiliary tank.
An aircraft fuel tank leak is serious. At best it is a waste of expensive aviation fuel and, at worst, a fuel leak can lead to in-flight fuel starvation to your aircraft’s engine(s).
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In the event of an emergency, some aircraft have a Ram Air Turbine (RAT) that can be extended into airstream to generate hydraulic pressure.
Hydraulic Motors and Cylinders. Hydraulic motors and cylinders utilize pressurized fluid to do mechanical work. Hydraulic Motors.Cleveland Tank is noted for their wide variety of manufactured aluminum fuel tanks to fit a wide range of applications.
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Obviously, future aircraft projects will involve the design of fuel system to some de-gree. In this project design methodologies for aircraft fuel systems are studied, with the .