I am curious on the function of the secondary metering plate. I’ve never played with them but staring at a pic of one for about half hour it looks like:
*As booster signal overcomes (outpaces) mab it begins drawing fuel from the side parallel channel as this channel is narrow and less voluminous, easier to move fuel. It is fed through the connecting hole of the larger main channel.
*As demand exceeds the flow capability of the connecting orifice it lowers the fuel in the side channel and begins drawing fuel from the larger main channel.
*Side channel would then have a lower pressure as movement past the connecting hole would reduce small channel pressure. That reduced pressure would draw on the mab.
* mab air would then be directed down the side channel and through the connecting orifice as a metering block style e-bleed and perform the same function as those metering block e-bleeds at higher flows.Statistics: Posted by Right hand drive — Sat Mar 27, 2021 12:56 am
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