"If using TOGA, after liftoff MCP IAS/Mach display and airspeed cursor change to V2+20 knots."
Thanks again, TR4A...
Just to clarify... Would the change to V2+20 be due to an air-ground transition, or is it co-incident with a pitch mode change from "TOGA" to "MCP SPD" (on the ASA) at, say, 400' radio alitude? Our Maintenance Manual shows a diagram of the aircraft at 400' with a different pitch mode (MCP SPD), but no MCP airspeed change, as if it was a critical height.
Would the V2+20 speed be independent of FMC input. i.e. simply MCP speed (pilots' selection of V2) plus a fixed 20kts.
On 767's and 747-400's, TOGA remains until another mode is manually/automatically selected. Until this time, the MCP speed or EADI/PFD speeds don't change. The FD commands the correct V2+xx speed however. xx is variable dependent on aircraft type, lift-off speed, maintained climbout speed and number of engines. Is the speed on the NG always +20kts?
Thanks.
Regards,
Q.