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This article is about the mainline Delta Air Lines Fleet. For information about the fleet of Delta's regional operations, see Delta Connection § Fleet.

Many in-line airplanes with the Delta Air Lines logo on the tail, parked on the pavement behind a fence.
Delta Air Lines aircraft parked on a taxiway at Kansas City International Airport.

As of December 2024, the Delta Air Lines fleet consists of 986 mainline aircraft, making it one of the two largest commercial airline fleets in the world, along with United Airlines.[1][2][3] Delta Air Lines operates a fleet manufactured by Airbus and Boeing.[4]

Delta operates the world's largest fleets of the Airbus A220, Boeing 717, and Boeing 757, the largest passenger fleet of the Boeing 767, and the largest Airbus A330 fleet of any US airline.

Delta has historically preferred purchasing or leasing used aircraft or using older-generation models to keep initial acquisition costs down. To support this business model, Delta has also invested in an extensive MRO (maintenance, repair, and overhaul) organization called TechOps. However, Delta has acquired lower-priced newer aircraft via discounts on slower-selling models and as aircraft manufacturers transition to newer designs. As a result, as of 2023, Delta flies the second-oldest fleet among the legacy carriers, and the average fleet age has been reduced to 15.3 years.[5][6]

Before its 2008 merger with Northwest Airlines, Delta's fleet was made up solely of American manufacturers' aircraft (except the Airbus A310, which was acquired from the collapsed Pan American World Airways). Aircraft from overseas manufacturers like Airbus joined the fleet after the merger with Northwest, and more have since been added.

Fleet overview

[edit]

Delta operates the largest fleets of the Airbus A220, Boeing 717, and Boeing 757, the largest passenger fleet of the Boeing 767, and the largest Airbus A330 fleet of any US airline.[citation needed] Alongside United Airlines, it is one of only two airlines operating the Boeing 767-400ER.[citation needed]

Delta primarily uses narrow-body aircraft for its domestic flights within the United States and international flights from the United States to Canada, Mexico, the Caribbean, and some European destinations. Most of its Boeing 717 aircraft are based out of Atlanta and are mainly used for short-haul flights.[7] Its Airbus A220, Airbus A320, Boeing 737, and Boeing 757 aircraft are used for short-haul flights and medium-haul transcontinental flights.[citation needed]

Delta primarily uses its wide-body aircraft on long-haul flights to Africa, Asia, Europe, Oceania, and South America. Its Airbus A330s and Boeing 767s mainly operate on flights to Europe,[8] while the Airbus A350-900 mainly operates on flights to Asia and Oceania.[citation needed]

Fleet renewal

[edit]

Since 2013, Delta has been working to reduce the age of its fleet by purchasing or leasing newly built aircraft or newer model used aircraft.[citation needed] Since launching the effort, Delta has preferred to purchase aircraft from Airbus, a major change for the company which had been a loyal customer of Boeing and McDonnell Douglas (which merged with Boeing in 1997).[citation needed] At the time, Delta had over 200 DC-9, MD-88, and MD-90 aircraft from McDonnell Douglas in its fleet.[citation needed] Replacing these older aircraft was a top priority for Delta.[citation needed]

For its narrow-body fleet, Delta acquired 277 aircraft from the Airbus A321 series and 119 aircraft from the Airbus A220 series. The first major purchase came in September 2013, when Delta ordered 30 A321 aircraft, its first order with Airbus in more than two decades.[9] This order would later be incrementally increased to 127 aircraft with 15 more added to the order in 2014,[10] an additional 37 in 2016,[11] and 40 more in 2017.[12][13] Since 2017, Delta has also purchased a total of 155 A321neo (new engine option) aircraft, with an initial order for 100 aircraft in December 2017,[14] followed by a purchase of 55 more in 2021.[15][16] Delta placed its first order for 75 A220 aircraft in April 2016, when the program was still run under Bombardier Aerospace.[citation needed] Delta purchased the aircraft at a steep discount: $19.6m each, well below their $33.2m production cost, which led Boeing to accuse the company of dumping the aircraft.[citation needed] Delta would later increase its order to a total of 145 A220 aircraft.[citation needed]

For its wide-body fleet, Delta acquired 25 Airbus A330neo and 42 of the newly introduced Airbus A350 aircraft. The A330neo and the first 25 A350 aircraft were purchased in November 2014. The A350 fleet was increased assuming the purchase rights for 10 aircraft from LATAM as part of a deal to acquire a 20% equity stake in LATAM Airlines Group in September 2019[citation needed] and by leasing 7 used aircraft in July 2021.[17]

Delta has also acquired some aircraft from Boeing. The airline purchased 29 used Boeing 737-900ER aircraft in July 2021[17] and also agreed to purchase 100 Boeing 737 MAX 10 aircraft in 2022.[citation needed]

As a result of the fleet renewal, Delta was able to retire its McDonnell Douglas MD-88/MD-90,[18] Boeing 777,[19] and Boeing 737-700 fleets in 2020.[20]

On January 12, 2024, Delta placed an order for 20 Airbus A350-1000 with options to buy 20 more.[21]

Current fleet

[edit]

As of December 2024, Delta Air Lines operates the following mainline aircraft:[citation needed]

Delta Air Lines fleet
Aircraft In
service 		Orders Aircraft capacity Notes
J F P W Y Total Refs
Airbus A220-100 45 — — 12 — 15 82 109 [22]
Airbus A220-300 29 71 — 12 — 30 88 130 [23][24][25][26]
Airbus A319-100 57 — — 12 — 18 102 132 [27]
Airbus A320-200 55 — — 16 — 18 123 157 [28] Older aircraft to be retired.
Airbus A321-200 127 — — 20 — 29 142 191 [29]
Airbus A321neo 69 86 — 20 — 42 132 194 [30][31][32]
16 — 12 54 66 148
Airbus A330-200 11 — 34 — 21 24 144 223 [33]
Airbus A330-300 31 — 34 — 21 24 203 282 [34]
Airbus A330-900 31 8 29 — 28 56 168 281 [35][36]
Airbus A350-900 35 9 32 — 48 36 190 306 [17][37][38][39]
30 — 63 246 339
40 40 36 159 275
Airbus A350-1000 — 20 TBA [40] Deliveries begin 2026.
Options for an additional 20.[41]
Boeing 717-200 80 — — 12 — 20 78 110 [42]
Boeing 737-800 77 — — 16 — 36 108 160 [43]
Boeing 737-900ER 163 — — 20 — 21 139 180 [44]
12 6 162 180
24 137 173
Boeing 737 MAX 10 — 100 — 20 — 33 129 182 [45]
Boeing 757-200 99 — — 20 — 41 132 193 [46] Older aircraft to be retired.
29 150 199
16 — 44 108 168
— 72 — — 72 Charter configuration
Boeing 757-300 16 — — 24 — 32 178 234 [47]
Boeing 767-300ER 40 — 26 — 18 21 151 216 [48] To be retired by 2030.[49]
— 35 165 226
36 32 143 211
Boeing 767-400ER 21 — 34 — 20 28 156 238 [50]
Total 986 294
[edit]

Fleet history

[edit]
Delta Air Lines retired fleet
Aircraft Total Introduced Retired Replacement Notes
Airbus A310-200[51][52] 9 1991 1995 Boeing 767-300ER Former Pan American World Airways fleet.[53]
Airbus A310-300 23 1996
Boeing 727-100 8 1972 1977 Boeing 727-200 Former Northeast Airlines fleet.[54]
Boeing 727-200 183 2003 Boeing 737-800
Boeing 757-200
McDonnell Douglas MD-90 		One crashed as Flight 1141.
Boeing 737-200 75 1983 2006 Boeing 737-800
McDonnell Douglas MD-88
McDonnell Douglas MD-90 		One damaged as Flight 1581.
Boeing 737-300 31 1987 Boeing 737-800
Boeing 737-700 10 2008 2020 Airbus A220
Airbus A319-100 		Early retirement accelerated due to the COVID-19 pandemic.
Boeing 747-100 5 1970 1977[55] Lockheed L-1011 TriStar Early retirement accelerated due to the 1970s energy crisis.
Boeing 747-400 16 2008 2018 Airbus A350-900 Former Northwest Airlines fleet.
Last major passenger 747 operator in North America.[56]
N661US ship 6301, the first 747-400 is displayed at the Delta Flight Museum.
Boeing 767-200 15 1982 2006 Boeing 737-800
Boeing 757-200
Boeing 767-300ER 		N102DA ship 102 named The Spirit Of Delta, is displayed at the Delta Flight Museum.
Boeing 767-300 28 1986 2019 Airbus A321-200
Boeing 737-900ER
Boeing 767-300ER
Boeing 777-200ER 8 1999 2020[57] Airbus A330-900
Airbus A350 		Early retirement due to the COVID-19 pandemic.
N867DA was acquired by the Arizona Cardinals as team transport.
5 B777-200LR's leased to Air India.[58]
Boeing 777-200LR 10 2008
Convair CV-240 family 18 1953 1970 McDonnell Douglas DC-9 Originally decided to buy Martin 2-0-2s but in 1951 ordered ten CV-340s instead.
Eight CV-440s were delivered from 1956 and Delta modified retrospectively its 340s to 440s.[59]
10 Ordered by Chicago and Southern Air Lines were delivered to Delta due to their merger in 1953.
Convair CV-880 17 1960 1973 Boeing 727-200 One written off as Flight 954.
Curtiss C-46 Commando 5 1957 1967 Lockheed L-100 [60]
Douglas DC-3 21 1940 1960 Convair CV-240 family [61]
3 Curtiss C-46 Commando Acquired after World War II and operated between 1946 and 1957.[62]
Douglas DC-6 12 1949 1968 Douglas DC-8
McDonnell Douglas DC-9 		Passenger amenities included a six-person lounge in the rear of the cabin and two pairs of aft-facing seats in the forward cabin.[63]
Douglas DC-7 11 1954 Douglas DC-8 [64]
Douglas DC-7B 10
Douglas DC-8-11 22 1959 1981 Boeing 727-200 Operated the world's first scheduled DC-8 service (from New York to Atlanta) on September 18, 1959.
DC-8-11s were converted to -12s then further converted to -51s.[65]
One crashed at Flight 9877.
Two hijacked as Flight 841 and Flight 821.
Douglas DC-8-12
McDonnell Douglas DC-8-51
McDonnell Douglas DC-8-33 7 1968 1974 Boeing 747-100 Utilized for transatlantic interline services.
McDonnell Douglas DC-8-61 13 1967 1989 Boeing 757-200
McDonnell Douglas DC-8-71 Leased from UPS Airlines.
Converted in-house to DC-8-71s in 1982-83.[65]
Fairchild Hiller FH-227 5 1972 1974 McDonnell Douglas DC-9 Former Northeast Airlines fleet.[66]
Lockheed L-100 Hercules 5 1966 1973 None Retired after delivery of wide-body passenger aircraft with large under-floor cargo compartments.
3 Converted to L-100-20 by Lockheed.
Various replacement aircraft were leased from Lockheed during the conversion program.[67]
Lockheed L-749 Constellation 10 1953 1958 Douglas DC-7 Acquired through the purchase of Chicago & Southern Air Lines.[68]
Lockheed L-1011 TriStar 70 1973 2001 Boeing 767 Largest L-1011 operator, including the long-range L-1011-500.
One crashed as Flight 191.
McDonnell Douglas DC-9-14 17 1965 1973[69] Boeing 737-200 Launch customer.
One crashed as Flight 9570.
McDonnell Douglas DC-9-30 77 1967 1993[69][nb 1] One crashed as Flight 723.
One hijacked as Flight 523.
27 2010 2010 Boeing 717-200
McDonnell Douglas MD-90 		Former Northwest Airlines fleet.
Never wore Delta livery.[70]
McDonnell Douglas DC-9-41 12 2011
McDonnell Douglas DC-9-51 34 2014 Former Northwest Airlines fleet.
N782NC ship 9873 preserved at Northland Community & Technical College.
N767NC ship 9858 preserved at Minneapolis–Saint Paul International Airport for fire training.
N675MC ship 9880 preserved at Delta Flight Museum.
McDonnell Douglas DC-10-10 5 1972 1976 Lockheed L-1011 TriStar Ordered in 1971 due to delays in the development of the Lockheed TriStar, sold to United Airlines before delivery then leased back by Delta.
9 1987 1988 Former Western Airlines fleet.[71]
McDonnell Douglas MD-11 17 1990 2004 Boeing 767
Boeing 777-200ER
McDonnell Douglas MD-88 120 1987 2020 Airbus A220
Airbus A321-200
Boeing 737-900ER 		Early retirement accelerated due to the COVID-19 pandemic.
One written off as Flight 1086. One was damaged as Flight 1288.
McDonnell Douglas MD-90 65 1995 Early retirement accelerated due to the COVID-19 pandemic.
First and final MD-90 operator.

Notes

[edit]
  1. ^ Delta originally had DC-9-30s from 1967 to 1993. Delta sold some of its DC-9-30s back to McDonnell Douglas, which sold them to ValuJet, forming ValuJet's initial fleet. ValuJet would eventually become Delta's main Atlanta-based rival, AirTran Airways. However, Delta inherited a fleet of -30s in 2008 when it merged with Northwest Airlines. Two of these had been delivered to Delta in 1967.

References

[edit]
  1. ^ "Delta Air Lines Fleet details". flightradar24.com. Retrieved January 3, 2024.
  2. ^ "American Airlines fleet details". flightradar24.com. Retrieved January 3, 2024.
  3. ^ "United Airlines Fleet Details". flightradar24.com. Retrieved January 3, 2024.
  4. ^ "Corporate Stats and Facts". Delta Air Lines. Archived from the original on August 1, 2015. Retrieved August 7, 2015.
  5. ^ Pallini, Thomas. "Delta Has an Aging Plane Problem and the Pandemic Is Forcing the Airline to Finally Address It". Business Insider. Archived from the original on October 8, 2020. Retrieved November 6, 2020.
  6. ^ "Item 2. Properties". United States Securities and Exchange Commission Form 10-K: Annual Report (PDF). Delta Air Lines. February 12, 2021. p. 25. Archived (PDF) from the original on June 29, 2021. Retrieved February 21, 2021.
  7. ^ Bihaskar, Vinay (April 28, 2016). "Delta Confirms Large Bombardier CSeries Order". Airways Magazine. Airways International. Archived from the original on November 5, 2016.
  8. ^ Levine-Weinberg, Adam (December 21, 2016). "Will Delta Air Lines, Inc.'s Widebody Fleet Renewal Boost Earnings?". The Motley Fool. Archived from the original on January 11, 2017.
  9. ^ Polek, Gregory (September 4, 2013). "Delta Turns to Airbus with Order for 40 Airplanes". Aviation International News. Archived from the original on January 28, 2020. Retrieved January 28, 2020.
  10. ^ "Delta Orders 15 More A321 Aircraft". Airways Magazine. June 2, 2014. Archived from the original on January 28, 2020. Retrieved January 28, 2020.
  11. ^ Mutzabaugh, Ben (April 29, 2016). "Second big deal in 2 days: Delta to buy 37 more Airbus jets". USA Today. Atlanta: Gannett. Archived from the original on January 28, 2020. Retrieved January 28, 2020.
  12. ^ Russell, Edward (June 20, 2017). "Delta adds 10 incremental A321s to orderbook". FlightGlobal. Archived from the original on January 28, 2020. Retrieved January 28, 2020.
  13. ^ Tribune, Aviation (May 11, 2017). "Delta to expand Airbus A321 Aircraft Order, Defer 10 A350 Deliveries". Aviation Tribune | Aviation News. Archived from the original on January 28, 2020. Retrieved January 28, 2020.
  14. ^ Russell, Edward (December 14, 2017). "Delta picks A321neo for narrowbody replacement". FlightGlobal. Archived from the original on January 28, 2020. Retrieved January 28, 2020.
  15. ^ "Delta Expands Airbus A321neo fleet". July 15, 2021. Archived from the original on April 22, 2021. Retrieved April 22, 2021.
  16. ^ "Delta continues fleet renewal with 30 additional Airbus A321neos". August 24, 2021. Archived from the original on August 24, 2021. Retrieved August 24, 2021.
  17. ^ a b c "Delta to add Airbus, Boeing aircraft to fleet amid travel demand recovery" (Press release). Atlanta: Delta Air Lines. Archived from the original on February 1, 2022. Retrieved July 13, 2021.
  18. ^ "By the numbers: A final salute to Delta's MD-88 and MD-90 'Mad Dogs'". Delta News Hub. June 1, 2020. Archived from the original on June 3, 2020. Retrieved June 3, 2020.
  19. ^ "Deltas 777 aircraft to retire by end of 2020, simplifying widebody fleet amid COVID-19". March 19, 2021. Archived from the original on May 24, 2020. Retrieved October 27, 2023.
  20. ^ "Delta Air Lines Announces June Quarter Financial Results and Update on COVID-19 Response Actions". Delta Investor Relations. July 14, 2020. Archived from the original on July 15, 2020. Retrieved July 14, 2020.
  21. ^ Sharma, Anurag (January 12, 2024). "Delta Orders Up to 40 New Airbus A350-1000s". Aviation A2Z. Retrieved January 12, 2024.
  22. ^ "Airbus A220-100 Aircraft Seat Maps, Specs & Amenities". delta.com. Archived from the original on April 2, 2019. Retrieved April 2, 2019.
  23. ^ "Delta expands flexible, fuel-efficient Airbus A220 fleet". Delta News Hub. July 19, 2022. Archived from the original on July 19, 2022. Retrieved July 19, 2022.
  24. ^ "Delta continues expansion of fuel-efficient Airbus A220 fleet". Delta News Hub. January 18, 2023. Archived from the original on January 18, 2023. Retrieved January 18, 2023.
  25. ^ "Delta exercises options for 12 Airbus A220-300s, expanding fuel-efficient and streamlined fleet". Delta News Hub. July 13, 2023. Retrieved July 13, 2023.
  26. ^ "Airbus A220-300 (223) Aircraft Seat Maps, Specs, & Amenities: Delta Air Lines". delta.com. Archived from the original on September 22, 2020. Retrieved August 27, 2020.
  27. ^ "Airbus A319 Aircraft Seat Maps, Specs & Amenities". delta.com. Archived from the original on April 2, 2019. Retrieved April 2, 2019.
  28. ^ "Airbus A320 Aircraft Seat Maps, Specs & Amenities". delta.com. Archived from the original on April 2, 2019. Retrieved April 2, 2019.
  29. ^ "Airbus A321 Aircraft Seat Maps, Specs & Amenities". delta.com. Archived from the original on May 8, 2021. Retrieved April 2, 2019.
  30. ^ "Delta continues fleet renewal with 30 additional Airbus A321neos". Delta News Hub. Archived from the original on August 24, 2021. Retrieved August 24, 2021.
  31. ^ "Delta introduces new domestic first class seats for A321neo fleet | Delta News Hub". News.delta.com. Archived from the original on June 6, 2022. Retrieved January 30, 2020.
  32. ^ Russell, Edward (March 28, 2022). "Delta Plans New Lie-Flat Transcontinental Seats in Premium Travel Push". Airline Weekly. New York: Skift. Archived from the original on June 6, 2022. Retrieved March 29, 2022.
  33. ^ "Airbus A330-200 Aircraft Seat Maps, Specs & Amenities". Atlanta: Delta Air Lines. Archived from the original on October 16, 2021. Retrieved September 28, 2021.
  34. ^ "Airbus A330-300 Aircraft Seat Maps, Specs & Amenities". Atlanta: Delta Air Lines. Archived from the original on April 2, 2019. Retrieved April 2, 2019.
  35. ^ "Delta Air Lines adds an A330neo, second-hand B737-900(ER)s". Zürich: CH Aviation. Archived from the original on July 14, 2022. Retrieved July 14, 2022.
  36. ^ "Airbus A330-900 Aircraft Seat Maps, Specs & Amenities". Atlanta: Delta Air Lines. Archived from the original on April 2, 2019. Retrieved April 2, 2019.
  37. ^ "Airbus A350 Aircraft Seat Maps, Specs & Amenities". Atlanta: Delta Air Lines. Archived from the original on April 2, 2019. Retrieved April 2, 2019.
  38. ^ "Airbus A350 Seat Maps, Specs & Amenities". Atlanta: Delta Air Lines. Archived from the original on April 7, 2022. Retrieved April 7, 2022.
  39. ^ Schlappig, Ben (December 17, 2023). "Delta A350s Get New Premium Configuration". One Mile at a Time. Retrieved December 18, 2023.
  40. ^ "Delta adds state-of-the-art Airbus A350-1000 to widebody fleet". Delta News Hub. January 12, 2024. Retrieved January 12, 2024.
  41. ^ "Delta to buy 20 Airbus A350-1000 widebody planes". Yahoo Finance. January 12, 2024. Retrieved January 12, 2024.
  42. ^ "Boeing 717 Aircraft Seat Maps, Specs & Amenities". Atlanta: Delta Air Lines. Archived from the original on April 2, 2019. Retrieved April 2, 2019.
  43. ^ "Boeing 737-800 Aircraft Seat Maps, Specs & Amenities". Atlanta: Delta Air Lines. Archived from the original on April 2, 2019. Retrieved April 2, 2019.
  44. ^ "Boeing 737-900 ER Aircraft Seat Maps, Specs & Amenities". Atlanta: Delta Air Lines. Archived from the original on October 2, 2022. Retrieved September 20, 2022.
  45. ^ "Delta adds state-of-the-art, fuel-efficient Boeing 737 MAX to fleet" (Press release). Atlanta: Delta Air Lines. Archived from the original on July 18, 2022. Retrieved July 18, 2022.
  46. ^ "Boeing 757-200 Aircraft Seat Maps, Specs & Amenities". Atlanta: Delta Air Lines. Archived from the original on April 2, 2019. Retrieved April 2, 2019.
  47. ^ "Boeing 757-300 Aircraft Seat Maps, Specs & Amenities". Atlanta: Delta Air Lines. Archived from the original on April 2, 2019. Retrieved April 2, 2019.
  48. ^ "Boeing 767-300ER Aircraft Seat Maps, Specs & Amenities". Atlanta: Delta Air Lines. Archived from the original on April 2, 2019. Retrieved April 2, 2019.
  49. ^ "Delta to retire B767-300ERs by 2030; -400s to keep flying". ch-aviation.com. January 19, 2024.
  50. ^ "Boeing 767-400ER Aircraft Seat Maps, Specs & Amenities". Atlanta: Delta Air Lines. Archived from the original on October 2, 2022. Retrieved September 22, 2022.
  51. ^ "COMPANY NEWS; Pratt Engines Are Selected For Delta's Big Airbus Order Archived April 21, 2023, at the Wayback Machine." The New York Times.
  52. ^ "Orders & Deliveries Archived September 7, 2009, at the Wayback Machine." Airbus.
  53. ^ "Airbus A310". Delta Museum. Atlanta: Delta Air Lines. Archived from the original on April 26, 2019. Retrieved April 26, 2019.
  54. ^ "Boeing 727". Delta Museum. Atlanta: Delta Air Lines. Archived from the original on September 21, 2019. Retrieved April 26, 2019.
  55. ^ "Aircraft By Type". Archived from the original on April 12, 2016. Retrieved May 1, 2016.
  56. ^ Ostrower, Jon (January 5, 2018). "Final flight for last US passenger airline 747". CNN Travel. Atlanta: Warner Bros. Discovery. Archived from the original on May 18, 2018. Retrieved February 11, 2019.
  57. ^ Yamanouchi, Kelly. "Delta retires Boeing 777, workhorse for international flying". The Atlanta Journal-Constitution. Atlanta: Cox Media Group. Archived from the original on November 1, 2020. Retrieved October 31, 2020.
  58. ^ "Tata-Owned Air India To Induct 30 Planes Over Next 15 Months". NDTV. Archived from the original on January 19, 2023. Retrieved September 12, 2022.
  59. ^ "Convair 340". Delta Museum. Atlanta: Delta Air Lines. Archived from the original on October 27, 2018. Retrieved April 10, 2019.
  60. ^ "Curtiss C-46". Delta Museum. Archived from the original on April 8, 2019. Retrieved April 8, 2019.
  61. ^ "Douglas DC-3". Delta Museum. Archived from the original on April 8, 2019. Retrieved April 8, 2019.
  62. ^ "Douglas C-47". Delta Museum. Archived from the original on April 8, 2019. Retrieved April 8, 2019.
  63. ^ "Douglas DC-6". Delta Museum. Archived from the original on March 24, 2019. Retrieved April 8, 2019.
  64. ^ "Douglas DC-7". Delta Museum. Archived from the original on April 28, 2019. Retrieved April 8, 2019.
  65. ^ a b "Douglas DC-8". Delta Museum. Archived from the original on April 27, 2019. Retrieved April 26, 2019.
  66. ^ "Fairchild-Hiller-FH-227B". Delta Museum. Archived from the original on December 15, 2018. Retrieved April 8, 2019.
  67. ^ "Lockheed L-100". Delta Museum. Archived from the original on April 8, 2019. Retrieved April 8, 2019.
  68. ^ "Aircraft By Type: Lockheed 749 Constellation". Delta Flight Museum.
  69. ^ a b "Aircraft By Type". Archived from the original on April 12, 2016. Retrieved May 1, 2016.
  70. ^ "Douglas DC-9". Delta Museum. Archived from the original on March 21, 2019. Retrieved April 8, 2019.
  71. ^ "McDonnell Douglas DC-10". Delta Museum. Archived from the original on April 8, 2019. Retrieved April 8, 2019.

Further reading

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