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AEI to convert 737s for African all-cargo carrier

Interior of a converted passenger plane to cargo configuration. (Image: Aeronautical Engineers Inc.)

Allied Air in Nigeria will nearly double its fleet size with the addition of up to four Boeing 737-800 converted freighters.

Aeronautical Engineers Inc. (AEI) of Miami, Florida, announced on March 2 that Allied Air has ordered two passenger-to-freighter conversions with options for two other jobs. The work will be performed by Miami-based Commercial Jet, a maintenance, repair and overhaul provider and one of AEI’s authorized conversion centers.

AEI, which has converted more than 500 airplanes,  builds the conversion kits and does the engineering and marketing.

It said the 737-800 freighter will be the youngest of its kind converted to date. Conversions list for $3.7 million, but AEI does not disclose terms of individual contracts.


Allied Air operates three B737-400 freighters modified by AEI and flies for the DHL parcel network within Africa. It also carries shipments for the Central Bank of Nigeria.

AEI spokesman Robert Convey said Allied Air bought the first passenger airplane on the secondary market and sent it to Miami. The finished product should be completed by early summer and Allied Air is in the process of sourcing its next aircraft.

The converted airplane offers a main deck payload of up to 52,700 pounds and incorporates 11 full-height container positions, plus an additional, smaller position. The conversion also incorporates new floor beams behind the wing box, a large main cargo door, and a cargo loading system. Additionally, the AEI B737-800SF includes a rigid 9g barrier to protect the cockpit area from sliding cargo, up to five extra seats, a galley and full lavatory.


Eric Kulisch

Eric is the Supply Chain and Air Cargo Editor at FreightWaves. An award-winning business journalist with extensive experience covering the logistics sector, Eric spent nearly two years as the Washington, D.C., correspondent for Automotive News, where he focused on regulatory and policy issues surrounding autonomous vehicles, mobility, fuel economy and safety. He has won two regional Gold Medals and a Silver Medal from the American Society of Business Publication Editors for government and trade coverage, and news analysis. He was voted best for feature writing and commentary in the Trade/Newsletter category by the D.C. Chapter of the Society of Professional Journalists. He was runner up for News Journalist and Supply Chain Journalist of the Year in the Seahorse Freight Association's 2024 journalism award competition. In December 2022, Eric was voted runner up for Air Cargo Journalist. He won the group's Environmental Journalist of the Year award in 2014 and was the 2013 Supply Chain Journalist of the Year. As associate editor at American Shipper Magazine for more than a decade, he wrote about trade, freight transportation and supply chains. He has appeared on Marketplace, ABC News and National Public Radio to talk about logistics issues in the news. Eric is based in Vancouver, Washington. He can be reached for comments and tips at ekulisch@freightwaves.com