Pratt & Whitney R-1830-76 (86) Twin Wasp (Aviation Museum, #4)View: Slideshow Mosaic List 1November 3, 2023 2October 9, 2023Aires’ cylinders are made of two pieces. In combination with the very accurate openings in the crankshaft housing it’s a very practicable solution. 3October 11, 2023 4October 11, 2023 5October 11, 2023Pushrods in place. 6October 11, 2023 7October 14, 2023Ignition ring made of 1 mm square rod. Several oil lines added. 8October 14, 2023 9October 16, 2023 10October 14, 2023 11October 16, 2023 12October 16, 2023 13October 18, 2023Frame completed, waiting for grey paint 14October 18, 2023 15October 18, 2023 16November 1, 2023 17November 1, 2023 18November 1, 2023 19November 1, 2023 Comments 22 8 October 2023, 10:25Spanjaardbeautiful! 13 August 2025, 15:07Alec KAgreed 👍 5 October 2025, 19:18Project infoAviation Museum138 images1:48In progress3+All albumsView all albums »