Merlin negative G cutout too quick?

[effte]

Originally Posted by Deadstick

This seems to suggest to me that even a small amount of negative G was causing the cut out, or why else would the tactic be necessary?

The tactic was necessary as the Bf109 pilots pushed more negative Gs than the Merlins could handle. In short, it's anecdotal evidence showing it happened, but next to nothing about the hows and whens.

Specifically, it doesn't say anything about whether problems began at 0 G, 0.2 G, -8G or 0.95 G.

Has anyone found a good description of the inner workings and design of the early Merlin carbs? I'd like to see one to form an opinion on when we should realistically expect the engine to cut.