The PA-6 first flew in 1946. It had a all-metal tail and fuselage but the wing was wood with fabric covering. NX580 was flown until 1956 when it went into storage. But in 2009 it was reregistered as N390UZ to be restored. A second PA-6, c/n 6-1 NC4000M appeared in 1947 and was all-metal. It did not enter production. Photo by: Rudy Arnold / Smithsonian Institution

This Sikorsky HSS-1N Seabat was retired by the Navy and stored at MASDC December 8, 1969. Sold as N46992 and acquired by the Mid Atlantic Air Museum circa 1997, the former HT-8 training squadron helicopter has been partially restored with a nose and tail from a couple of other military S-58s.

Beech AT-11 in agricultural sprayer configuration. Ex USAF 43-10384, converted to civil in early 1958. Was still in service as a sprayer by 2018. Photo by Robert O'Dell.

In October 2005, Sky FlightCare flew this MD902 on air ambulance missions from the Coatesville-Brandywine Hospital Heliport (2PS6), PA. It was photographed at the American Helicopter Museum's Rotorfest 2005 fly-in at West Chester - Brandywine Airport. Sky FlightCare closed in September, 2013. This MD900 was built in 1998 as N9229Q and first flown by the US Coast Guard HITRON program as 9054 in 1999-2000. With Doctor Heli as JA01DH in 2001-2004. With Sky FlightCare as N222YN 2004-2006. California Shock Trama Air Rescue 2007-2012 as N222YN & N902YN. First MD900 in New Zealand as ZK-IYN in 2015.

This 365N2 Dauphin 2 was completed by Aerospatiale Helicopter Corp in Texas in 1991 and delivered to a corporate customer as N365JR and later re-registered N886TW. It was one of the many helicopters to attend the American Helicopter Museum's Rotorfest 2004 fly-in at Brandywine Airport in West Chester, PA in October 2004. It was last operated by Open Sky Aviation of New York, NY between August 2016 and August 2018 when its registration was cancelled.

University of Pennsylvania Health System established the PennSTAR air ambulance program in the summer of 1988 to serve patients in Delaware, New Jersey and central Pennsylvania. This 1985 model BK117 was test flown in Germany as D-HBMZ, then shipped to MBB Helicopter Corp at Brandywine Airport, PA and flew as N44932 prior to delivery to aero medical operator CJ Systems as N117CJ for use by the STAT Medevac and PennStar EMS programs. Air Methods bought CJ Systems in October 2007 and retired N117CJ in 2015. Metro Aviation now flies four helicopters for PennStar from three bases.

Delivered to Southwest 22 May 1992, retired from use September 2016.