Ace posted:Allegheny posted:While observing the 844 video taken on July 12, 2016, I observed that the engine was emitting dark smoke every 3 to 4 seconds with pauses of Clearsmoke in between. Out of curiosity is this indicative of anything ?
Them sporadic puffs of dark smoke are caused by unbalanced synchronization of the dynamic fueling nozzlectors retrofeeding inactive particulate matters into the combustionable upflow processes thereby creating illusionary valence images of aphotic constituent in the atmospheric drafting interface, so the engineer therefore blows the whistle frequently to alert spectators accordingly.
Good old "Ace" always has the answer.