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Marine News September 2021 • Volume 32 Number 9

Contents

Features 24 Expect the Unexpected on the

Inland Waterways A recovery from the dismal 2020 is underway, but activity on the rivers is uneven and there are many obstacles on the horizon.

By Barry Parker 30 Three Challenges to 24

Challenge Engineers In 2021, and for the next few years, HVAC experts cite three top priority issues: the COVID-19 pandemic; energy ef? ciency; and ? nding safe, new refrigerants with low global warming potentials.

By Tom Ewing © Vilhelm / Adobe Stock © 2007 DMichael Burns / CC 30 4 Editor’s Note 20 Column: Washington Watch 42 People & Company News

By Jeff Vogel 43 Products 6 Authors 22 OpEd: The Case for Stock Boats 44 Classi? ed Advertising

By Chris Allard 10 By the Numbers: U.S. Shipbuilding and Repair 48 Advertisers Index 36 Tech File: Shipyard Tools 14 Insights: 38 Vessels Joey D’Isernia, President, Eastern Shipbuilding

On the Cover

Eastern Shipbuilding recently completed the ? rst of three new Ollis Class vessels for Staten Island Ferry. (Photo: Eastern Shipbuilding Group) 2 | MN September 2021