Running Continental IV-1430 Hyper Engine form WWII

[Tom Fey]

Only 23 of these inverted V12 engines were manufactured, 6 engines survive, and only one survivor runs. The IV-1430 powered the XP-49 and the XP-57 without success in either installation, but it was an interesting endeavor brought to life by the restoration efforts of historian and author Graham White. History and run video here:
View: https://youtu.be/W8Os6WQ-x7g

 

[MIflyer]

Yes, and it was VERY LOUD! No mufflers on that thing!