In Jan 1953 this old B-25C (ex USAAF 41-13251) was acquired by Howard Hughes's Hughes Tool Co., which had it converted it for executive use. It was fitted with rear doors, a bathroom and large bed, possibly for Mr. Hughes himself. It was wfu in the late 1950s and stored at Culver City, CA. In Jul 1974 they donated it to the museum, then still named the Antelope Valley Aero Museum. The museum closed in Jun 2015, and the B-25 was sold to San Simeon Air. It was dismantled in late 2015, and the forward and center fuselage was trucked to Breckenridge, TX for restoration. The aft fuselage, wings, engines and other parts were trucked to Nut Tree Airport at Vacaville, CA. The current status of this restoration project is unclear.

This unmarked Chickasaw at the Milestones of Flight Air Museum is usually quoted as 55-4943, but this is almost certainly not correct. That serial is quoted on a modification data plate in the cabin, but the fuselage main data plate quotes serial 53-4441. The latter is usually considered to be the most relevant and most reliable plate. Following the museum's closure in Jun 2015, this helicopter was moved to the Estrella Warbirds Museum in Paso Robles, CA in late 2015.

This Seabat was withdrawn for Navy service in Jun 1970, and later became N85128 with an owner in Fairbanks, AK, but it may never have been delivered. Eventually acquired by the museum circa 2008. Almost immediately after the museum's closure in Jun 2015, this helicopter was moved to the Estrella Warbirds Museum in Paso Robles, CA.

The Milestones of Flight Museum was formed by Lee Embree in the early 1970s, then named the Antelope Valley Air Museum. In 1986 the name was changed to Milestones of Flight Museum. This C-97 has been part of the collection since at least 1988. The museum closed in 2015, and although the exhibits were sold for restoration or offered for scrap value, this C-97 was still present by Mar 2018, as were the Argosy and the C-119.

Part of the museum's collection since 1992/1993.

The S-55QT (Quiet Technology) conversion was started by Orlando Helicopter in the mid 1980s and continued by Vertical Aviation Technology (VAT) in the 1990s, at the request of Papillon Grand Canyon Helicopters who needed quieter helicopters for their sight-seeing flights. It features a 5-blade rotor instead of the standard 3-blade one, revised engine intakes and exhausts, and noise-suppressing engine covers. It also has extra large windows to improve the passenger's view. The conversion was certified in December 1999. This example still carries its old Papillon colours.

Engine caught fire on start-up at Sanford, Maine on January 25, 2004. Aircraft burnt out.

Operated by ARDCO.

Built in 1947

Registration cancelled in 2013

This Mitchell was once operated by Howard Hughes and the colour scheme looks a bit like TWA.

Sold in Mexico.