thank u,but that's a personal's experience.what i'm bothering with is how to write the words into an SOP.
BOEING has said"from altimiter", i think it's partly reasonable---VSI indication is from IRS. but how to read the positive rate of climb from an altimiter?
so far, the criterias for retracting gears in my mind are:
1.not too early---at least airborne,
2. not too late---too late will affect the performence(especially in case of 1 eng INOP)
any words from your company's SOP?