Army AH-Apache Manuals
- Army operating and maintenance manuals for the AH-Apache Helicopter.
- http://www.tpub.com/content/ahapache/

CombatAircraft.com
- Boeing AH-64 Apache specifications and photos.
- http://www.combataircraft.com/aircraft/hah64.asp

How Stuff Works - "How Apache Helicopters Work"
- Overview of the weapons and equipment onboard.
- http://www.howstuffworks.com/apache-helicopter.htm

Army Technology
- News, project information, images and specifications on the AH-64A/D Apache Attack Helicopter developed for the US Army by Boeing.
- http://www.army-technology.com/projects/apache/index.html

Aviation-Central.com
- Models for sale.
- http://www.aviation-central.com/helicopters/aha90.htm

Jane's Air Forces: AH-64 Apache
- Aircraft history, description of specifications and variations, and information about production. Photos.
- http://www.janes.com/defence/air_forces/news/jawa/jawa001013_1_n.shtml

FAS: AH-64 Apache
- Federation of American Scientists Military Analysis Network summary of the characteristics, fielding schedule, history, and missions of the aircraft. Includes schematics and photos.
- http://www.fas.org/man/dod-101/sys/ac/ah-64.htm