I think leaving the gear down is a Typhoon SOP whilst in the circuit. I also once heard that you put it down at TOD and fly the descent dirty but I don't know how true that is.
No idea why, but I have a vauge memory of talk about a software reason for it staying down.
Blunty
So what you are trying to say is that you have absolutely no idea what you are on about and have no idea what the Typhoon SOP says. Fabulous.
