I recently got involved with drones and enjoy watching good quality drone footage. I came across this posting on a Mavic drone site and felt a need to share it.

Here is the link:

https://youtu.be/1mtdSF-Mkhc

Thanks for posting! I've been watching Big Boy every chance I get. Unfortunately it never comes through North Carolina. This engine was rebuilt about 3 years ago.
https://www.youtube.com/watch?v=UYYzhjUzCOU