Hughes 500 - overview version[/heading]
Hughes YOH-6A - Model 369, light reconnaissance and transport helicopter for the US Army, the engine Allison T63-A-5, čtyřlistý rotor; 10 předsériovýh machines
the Hughes OH-6A Cayuse - the serial variant, modified tail beam, tail surfaces to the V; 1438 pcs
Hughes NOH-6A The Quiet One - machine modified for noise reduction; 1 conversion
Hughes EH-6B Little Bird - conversion of the OH-6A special units for the electronic survey; 4 pcs
Hughes MH-6 Little Bird - para conversion of the OH-6A special units; 26 pcs
McDonnell Douglas OH-6A Cayuse - the modernization of the OH-6A for the National guard; 8 conversion
McDonnell Douglas TH-6B Cayuse - modified OH-6B transmitted as a practice of the U.S. Navy; 6 conversions
Hughes OH-6C - a prototype of the modernization with a new engine, pětilistým rotor and tail surfaces into T; 5 conversions
Hughes AH-6C Little Bird - analogue of the 500M, the light of battle and the airborne helicopter for special units; 1 new, 17 conversion of the OH-6A/EH-6B/MH-6B
Hughes OH-6D Super Cayuse - demonstrator reconnaissance and battle version derived from the model 500MD; 1 conversion 500D
Kawasaki OH-6D - japanese license version of the model 500D; 130+ pcs
Hughes OH-6DA - japanese military designation for the model 500E
Hughes EH-6E Little Bird - conversion of 500D/500MD special units for the electronic survey; 3 pcs
Hughes MH-6E Little Bird - para conversion 500D/500MD special units; 15 pcs
McDonnell Douglas AH-6F Little Bird - light of battle conversion of the MD 500E; 9 pieces
McDonnell Douglas AH-6G Little Bird - light of battle conversion of the MD 530MG; 4 pcs
McDonnell Douglas MH-6H Little Bird - para conversion of the MD 530MG; 3 pcs
Kawasaki OH-6J - japanese license version of the model 500M; 131 pcs
McDonnell Douglas AH-6J Little Bird - modernized light battleship conversion of the MD 530F; 20 pcs + conversion of earlier AH-6
McDonnell Douglas MH-6J Little Bird - modernized airborne conversion of the MD 530F; 1? pcs + conversion previous MH-6
McDonnell Douglas AH-6M Little Bird - analogue of the AH-6J with šestilistým rotor and other modifications; conversion of the AH-6J
McDonnell Douglas MH-6M Little Bird - analogue of the MH-6J with šestilistým rotor and other adjustments; 4? pcs + conversion MH-6J
Boeing AH-6S Phoenix - proposed significantly modernized lightweight battle variant derived from the A/MH-6X
Boeing AH-6i - export version based on the AH-6S; ? ks
Hughes 500 (Model 369H) - civilian multipurpose variant of the OH-6A, engine Allison 250-C18A; 5 pcs (sometimes referred to 100)
Hughes 500M (Model 369M) - export military variant of the model 500; 151 pcs
Hughes 500MC - sometimes used designation for the Hughes 500M with engine 250-C20
Hughes 500C (Model 369HS/369HE) - "the standard" civilian variant with an engine Allison 250-C20, more appropriate for a hot environment and a great height; 731 pcs
Hughes 500D (Model 369D) - "silent" civil variant with pětilistým rotor, tail surfaces to T, the engine 250-C20B; 1381 pcs including military subversion
Hughes 500MD Defender (Model 369D) - export military variant of the model 500D; 290+ in a few subverzích
Hughes 500E (Model 369E) - analogue of the 500D with a new sharp prow and pětilistým or čtyřlistým rotor; 625+ pcs including the military version, still in production
Hughes 530F Lifter (Model 369F/369FF) - analogue of the 500E for a great height, and temperature, engine 250-C30; 280+ pcs including the military version, still in production
McDonnell Douglas MD 500E - label model 500E after 1984
McDonnell Douglas MD 530F - the designation of the model 530F after 1984
McDonnell Douglas MD 500MG Defender - export military variant of the MD 500E, the engine 250-C20B; known only 6 pcs for Colombia
McDonnell Douglas MD 520MG Defender - export military variant of the MD 500E; 25-33 pcs for Philippines
McDonnell Douglas MD 530MG Defender - export military version of the MD 530F; 42? ks
McDonnell Douglas MD 520N - a variant of the MD 500E without the tail rotor (NOTAR) engine 250-C20R; 110+ pcs, still in production
McDonnell Douglas MD 530N - analogue of the MD 520N with engine 250-C30; 1 prototype
McDonnell Douglas MD 600 N - extended eight-figure variant of the MD 520N; 80+ pcs, still in production
MD Helicopters MD 530F Cayuse Warrior - light of battle variant of the MD 530F for Afghanistan, ordered over 200 pcs
MD Helicopters MD 530G - light of battle variant of the MD 530F, four pylons instead of two, the new avionics; ordered 6 pcs for Malaysia
MD Helicopters MD 540F - poročilá battle variant, development terminated
BredaNardi NH-500M - license variant of the model 500M; 60+ pcs
BredaNardi NH-500C - license variant of the model 500C; ? ks
BredaNardi NH-500D - license variant of the model 500D; ? ks
BredaNardi NH-500E - license variant of the model 500E; 50+ pcs
BredaNardi NH-500MD - license variant of the model 500MD; ? ks
BredaNardi TH-500B - the markings of the Italian air force for the NH-500E
Agusta AMD-500E - the designation of the NH-500E after 1989
Boeing Unmanned Little Bird - demonstrator unmanned version of MD 530F
Boeing A/MH-6X - a demonstrator based on the AH-6M and ULB
Francillon, Rene J. McDonnell Douglas Aircraft Since 1920, Volume II. Naval Institute Press, Annapolis 1990. ISBN 0-85177-828-3.
Taylor, John W. R. Jane's All the World's Aircraft 1975-76. Macdonald and Jane's, London 1975.
Taylor, John W. R. Jane's All the World's Aircraft 1986-87. Jane's Publishing Company, London 1986. ISBN 0-7106-0835-7.
Lambert, Mark. Jane's All the World's Aircraft 1991-1992. Jane's Information Group, Coulsdon 1991. ISBN 0-7106-0965-5.
Jackson, Paul. Jane's All the World's Aircraft 2004-2005. Jane's Information Group, Coulsdon 2004.
http://www.uswarplanes.net/oh6.html
.
Taylor, John W. R. Jane's All the World's Aircraft 1975-76. Macdonald and Jane's, London 1975.
Taylor, John W. R. Jane's All the World's Aircraft 1986-87. Jane's Publishing Company, London 1986. ISBN 0-7106-0835-7.
Lambert, Mark. Jane's All the World's Aircraft 1991-1992. Jane's Information Group, Coulsdon 1991. ISBN 0-7106-0965-5.
Jackson, Paul. Jane's All the World's Aircraft 2004-2005. Jane's Information Group, Coulsdon 2004.
http://www.uswarplanes.net/oh6.html