Flap Retraction
For the sake of adding to the discussion, as I mentioned in a previous post when operating our Lear 45s we call for flaps at V2+25 as per the manual. However I have just finished a type course on the Gulfstream G650 and Flight Safety International teaches for flaps to be raised at 400agl. The Operating Manual as well as the Gulfstream checklist call for flaps to be raised at positive rate just after the gear. No mention of speed or altitude. Same call for flaps 10 and flaps 20 take-off.