Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Come and join us for Coolspring's 2nd Hot Air Engine Expo, June 17-20, 2026 in Coolspring, Pennsylvania, USA. If it's anything like the 2017 Expo, over 200 large and small historic antique, large and small hot air engines will be exhibited. There will also be tables in a building available for exhibiting toys and models. See attachment below for area hotels, etc. Best days are usually Thursday and Friday. Hope to see you there!