Annular boosters on a Tunnel Ram

71GSS,
Unfortunately in your post #68, logic is missing from the first three lines.
If a larger MAB starts the mains sooner [ it doesn't ] & flows more fuel, then it follows using the same logic that increasing the MAB will increase the fuel flow even further; not stop it as you say.


Although it was not you who said it, NOWHERE in any any of the links provided in this thread does it say these simple words or words that have the same meaning: a bigger MAB starts the main system sooner. If I missed it can somebody please point it out....

Another point to remember. At some point as the throttle is opened, the idle system tails off in conjunction with the start of the main system to allow for a smooth transition between one system finishing & another starting.