| 词条 | Aircraft dope |
| 释义 |
Typical doping agents include nitrocellulose, cellulose acetate and cellulose acetate butyrate. Liquid dopes are highly flammable; nitrocellulose, for instance, is also known as the explosive propellant "guncotton". Dopes often include colouring pigments to facilitate even application, and are available in a wide range of colors.{{Citation needed|date=May 2013}} Dope has been applied to various aircraft fabrics, including madapolam,[3] but also more recently on polyester and other fabrics with similar fine weave and absorbent qualities.[4] AccidentsAccidents have occurred when dope is not used correctly, for example when mixed with other chemicals, used on the wrong fabrics, or applied to contaminated or improperly prepared surfaces. In the 1930 R101 disaster,[5] improper doping caused the fabric of the airship to become brittle and easily torn. On 27 April 1995 91-year-old aircraft designer, builder and significant figure in the homebuilt aircraft movement, Steve Wittman and his wife were killed when their Wittman O&O Special broke up in flight due to delamination and separation of the wing fabric, resulting in wing aeroelastic flutter. The US National Transportation Safety Board investigation determined that the layers and types of doping they used did not have "the best adhesive qualities" and referred to "the Poly-Fiber Covering and Painting Manual" for proper processes to use.[6] References1. ^{{cite book|title= Complete Book of Model Aircraft, Spacecraft and Rockets | first= Louis Heilbroner | last=Hertz | publisher =Crown Publishers | year= 1967 }} {{Aircraft components}}2. ^Crane, Dale: Dictionary of Aeronautical Terms, third edition, page 170. Aviation Supplies & Academics, 1997. {{ISBN|1-56027-287-2}} 3. ^{{Cite news|url = http://militaryhistory.about.com/od/worldwariiaircraft/p/mosquito.htm|title = World War II: De Havilland Mosquito|accessdate = 6 January 2012|last = Hickman|first = Kennedy|year = 2012| work = About.com}} 4. ^{{cite book |title=British Gliding Association Handbook|last=Wills|first=Philip|year=1966}} 5. ^Structures (or, Why Things Don't Fall Down), chapter 16: "A Chapter of accidents"; by J. E. Gordon, published 1978 by Penguin Books 6. ^{{Cite web|url=http://dms.ntsb.gov/aviation/AccidentReports/5gdtvpydpxoghm45trrzdcu31/X03222012120000.pdf |title=Brief of Accident |accessdate=27 August 2011 |last=National Transportation Safety Board |date=December 1995 |deadurl=yes |archiveurl=https://web.archive.org/web/20120322200155/http://dms.ntsb.gov/aviation/AccidentReports/5gdtvpydpxoghm45trrzdcu31/X03222012120000.pdf |archivedate=March 22, 2012 }} 2 : Aircraft skin|Coatings |
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