Tolong jelaskan mengenai Varian dari McDonnell Douglas F-15 Eagle

F-15A 71-0280, the first prototype

F-15A-1, AF Ser. No. 71-0280

F-15A-1, AF Ser. No. 71-0281

F-15A-2, AF Ser. No. 71-0282

F-15A-2, AF Ser. No. 71-0283

F-15A-2, AF Ser. No. 71-0284

F-15A-3, AF Ser. No. 71-0285

F-15A-3, AF Ser. No. 71-0286

F-15A-4, AF Ser. No. 71-0287

F-15A-4, AF Ser. No. 71-0288

F-15A-4, AF Ser. No. 71-0289

F-15B-3, AF Ser. No. 71-0290

F-15B-4, AF Ser. No. 71-0291

F-15 Streak Eagle (AF Ser. No.72-0119)

F-15 STOL/MTD (AF Ser. No. 71-0290)

F-15 ACTIVE (AF Ser. No. 71-0290)

F-15 IFCS (AF Ser. No. 71-0290)

F-15 Flight Research Facility (AF Ser. No. 71-0281 and AF Ser. No. 71-0287)

F-15B Research Testbed (AF Ser. No. 74-0141)

Davies, Steve and Doug Dildy. F-15 Eagle Engaged, The World's Most Successful Jet Fighter. Oxford, UK: Osprey Publishing, 2007. ISBN 978-1-84603-169-4.

Eden, Paul and Soph Moeng, eds. The Complete Encyclopedia of World Aircraft. London: Amber Books Ltd., 2002. ISBN 0-7607-3432-1.

Gething, Michael J. F-15 Eagle (Modern Fighting Aircraft). New York: Arco, 1983. ISBN 0-668-05902-8.

Green, William and Gordon Swanborough. The Complete Book of Fighters. New York: Barnes & Noble Inc., 1988. ISBN 0-7607-0904-1.

Gunston, Bill. American Warplanes. New York: Crescent Books. 1986. ISBN 0-517-61351-4.

Huenecke, Klaus. Modern Combat Aircraft Design. Annapolis, Maryland: Naval Institute Press, 1987. ISBN 0-87021-426-8.

Jenkins, Dennis R. F/A-18 Hornet: A Navy Success Story, pp. 1–8. New York: McGraw-Hill, 2000. ISBN 0-07-134696-1.

Jenkins, Dennis R. McDonnell Douglas F-15 Eagle, Supreme Heavy-Weight Fighter. Hinckley, UK: Midland Publishing, 1998. ISBN 1-85780-081-8.

Lambert, Mark, ed. Jane's All the World's Aircraft 1993–94. Alexandria, Virginia: Jane's Information Group Inc., 1993. ISBN 0-7106-1066-1.

Scutts, Jerry. Supersonic Aircraft of USAF. New York: Mallard Press, 1989. ISBN 0-7924-5013-2.

Spick, Mike, ed. The Great Book of Modern Warplanes. St. Paul, Minnesota: MBI, 2000. ISBN 0-7603-0893-4.