Platte River Equity has acquired airplane engine tester CTS Engines. The target’s management team is also investing in the deal.

CTS, located in Fort Lauderdale, Florida, provides maintenance, repair and testing services on aerospace engines. Some of the target’s clients include Boeing Co. (NYSE: BA), General Electric Co. (NYSE: GE), DHL, Air Transport Services Group Inc. (Nasdaq: ATSG), Atlas Air Worldwide Holdings Inc. (Nasdaq: AAWW) and Western Global Airlines.

CTS CEO Brian Neff says the deal with Platte River will put the company in a better position to “address the wave of next generation engine programs as they enter the market.” Denver-based Platte River made the investment of the firm’s third fund and financial terms were not disclosed. Platte River puts up to $80 million in equity in transactions. In 2015, the PE firm bought industrial tool manufacturer Jameson LLC and hoist maker Huskie Tools.

Aerospace deals have been picking up in the middle-market. AE Industrial Partners bought aerospace parts maker Moeller Mfg. Co. LLC; Liberty Hall Capital Partners acquired parts supplier J&M Machine LLC; and TransDigm Group Inc. (NYSE: TDG) is buying Data Device Corp. (DDC), a maker of electronic components for aircraft.

Bartlit Beck Herman Palenchar & Scott LLP represented Platte River which received financing from Annaly Middle Market Lending. BlackArch Partners advised CTS.