Tài liệu Radar Absorbing Materials doc

Radar Absorbing
Materials
Stealth Technology
By
Esteban Hernandez

R.A.M.
Radar Absorbing Material (R.A.M.)
Plessey Company (1940’s)

moved from Ilford to Caswell House during WW II

R.A.M.
Materials

carbon fiber
composites

magnetic ferrite-
based substance
RAM reduces the
radar cross section
making the object
appear smaller

R.A.M.
Problems

Must be defect free


Most at risk during in flight fueling

High maintenance

$14.5 million (F-117)

Affected by weather conditions

Reason for B-2 Bomber stationed only in USA

Future of R.A.M.
F-22 Raptor

Radar Absorbing Alloy (Classified)

Canopy; Radar Absorbing Glass

(contains a copper alloy)

Radar Absorbing Paint along the leading
edges

References
www.f-22raptor.com/st_getstealthy.php
People.howstuffworks.com/stealth-
bomber.htm
People.howstuffworks.com/news-
intem67.htm