Built for USAAF as 44-34761, but not delivered. Converted in 1961 by On Mark Engineering of Van Nuys to Marksman C standard including deeper pressurised fuselage with revised cabin roof. Fitted with 2500 h.p. R-2800 and wingtip tanks. Carried up to 8 executive passengers.

Before bizjets there were these slick beauties. Delivered to the USAAF as 41-39516, this B-26B was acquired by Standard Oil in 1954 and later converted by On Mark to a Marketeer executive transport. They sold it in 1963, and one of the subsequent owners was PFB Enterprises of Akron, Ohio.

Former USAAF 41-39221. Converted from A-26 Invader to On Mark Marketeer executive aircraft during the early 1960s. In the early 1980s this was used as an engine testbed, with a turbine engine mounted in the nose. Became N26GT in 1983 and eventually donated to the South Mountain High School in 1992. Still on outdoor display there in good condition 30 years later, in September 2022.

Built as an A-26B 44-34555 for USAAF. Redesignated postwar as B-26B. Has had On Mark modifications.

Built in 1943 as a Douglas A-26 (later B-26) Invader 41-39378. Modified for counter-insurgency role and re-serialled 64-17653. Wears the 'TA' code of 606 SOS when based at Nakhon Phanom, Thailand. Later to the Pima museum.

Built as A-26C 44-35484. Converted to B-26K COIN aircraft by On Mark Engineering. Displayed at Hurlburt wearing incorrect serial 71-666.

Ex 44-34713. Converted from A-26 Invader to On Mark Marketeer executive prop during the mid 1960's.

Some A-26 Invaders were converted to executive transports after WWII. Looking rather unconvincing as a warbird, this one resides in Greece since 1995.