• EUROCOPTER www.eurocopter.com
• Eurocopter U.S.A. www.eurocopterusa.com
• Eurocopter Italia www.aersud.it
• Eurocopter Inghilterra www.eurocopter.co.uk
• TURBOMECA www.turbomeca.fr
• Turbomeca U.S.A. www.turbomeca-usa.com
• ALLISON www.allison.com 
• LYCOMING www.alliedsignal.com
• PRATT&WHITNEY www.pratt-whitney.com
• BENDIX KING www.bendixking.com
• SFIM www.sfim.fr
• LUCAS AIR EQUIPMENT www.trw.com

OPERATORI ITALIANI / ITALIAN OPERATORS

• Elifriulia www.elifriulia.it
• Elikos www.elikos.com
• Airway www.airway.it
• Eti 2000 www.eti2000.it
• Free Air Helicopters www.freeair.it
• Elilombarda www.elilombarda.com
• Airgreen www.airgreen.it
• Aliven www.aliven.it
• Eli 2000 www.eli2000.it
• Helitalia www.helitalia.it
• Alieurope www.alieurope.it
• Aercopter www.aercopter.com
• Air Service Center www.airservicecenter.com
• Alpicopter www.alpicopter.com
• Eliabruzzo www.eliabruzzo.com
• Elidolomiti www.elidolomiti.it
• Elicar www.elicar.it
• Elilombardia www.elilombardia.it
• Elifox http://utenti.tripod.it/elifox
• Elisusa http://members.nbci.com/elisusa/Index.html
• Heliwest www.lacittadelvolo.com/heliwest
• Eli Alpi Helicopters Service www.elialpi.com
• Il Ciocco International Travel Service www.helicopter.it
• Air Walser www.aviationworldservices.com/airwalser/airwalser.html
• S.A.M. Società Aerea meridionale www.flywithsam.com

ASSOCIAZIONI / ASSOCIATIONS 

• Helicopter Association International www.rotor.com
• Agenzia Spaziale Italiana www.asi.it
• European Space Agency http://wwwarc.iue.it/noadv/esa.html
• N.A.S.A. www.nasa.gov

AUTORITA’ AERONAUTICHE E ORGANISMI INTERNAZIONALI
AERONAUTICAL AUTHORITIES AND INTERNATIONAL ORGANISATIONS 

• I.C.A.O. International Civil Aviation organisation www.icao.int
• E.C.A.C. European Civil Aviation Conference www.ecac-ceac.org
• J.A.A. Joint Aviation Authorities www.jaa.nl
• E.N.A.C. Ente Nazionale dell’Aviazione Civile www.enac-italia.it
• F.A.A. Federal Aviation Administration www.faa.gov
• N.T.S.B. National Transport Safety Board www.ntsb.gov
• Civil Aviation Authority (UK) www.caa.co.uk
• D.G.A.C. Direction Generale de l’Aviation Civile www.dgac.fr
• L.B.A. Luftfarht-Bundesamt www.lba.de
• Canadian Department of Transport www.tc.gc.ca
• Civil Aviation Safety Authority Australia www.casa.gov.au

MUSEI AERONAUTICI / AERONAUTICAL MUSEUMS 

• Museo della Scienza e della Tecnica www.museoscienza.org/aerei
• Museo Caproni www.mtsn.tn.it/caproni/caphome.html
• National Air & Space Museum www.nasm.edu
• Smithsonian Institution www.si.edu
• Us Air Force Museum http://www.wpafb.af.mil/museum/index.htm
• Hill Aerospace Museum www.hill.af.mil/museum/
• National Science Museum London www.nmsi.ac.uk/
• Piper Aviation Museum http://www.kcnet.org/~piper/
• Monino Air Force Museum http://monino.8m.com
• Helicopter’s history site www.helis.com

RIVISTE AERONAUTICHE / AVIATION MAGAZINES 

• Aviation Wek & Space Technology www.aviationnow.com
• Rotor & Wing www.aviationtoday.com/reports/rotorwing/previous
• Flight International www.flightinternational.com
• Rotor & Wing http://www.aviationtoday.com/reports/rotorwing/previous/
• Helicopter World http://www.heli-world.com/
• Volare www.edidomus.it
• Aeronavigabilità http://www.enac-italia.it/pa/default.asp
• JP4 www.edai.it
• Air Press www.airpress.it
• Rivista Aeronautica www.aeronautica.difesa.it/rivista/