Good morning,I just wnated to know from pilots if this is realistic to do. In order not to loose so much speed in full A/P mode, I enter FMC with VNAV to ECON CRZ page 2/3.I find OPT FLxxx and MAX FLyyyI disconnect VNAV on MCP and enter OPT FL indicated into FMC.I noticed I keep much higher speed and increase steadily the FL.Is this a correct way to do it?RegardsRakhamToshiba Satellite P4 3.4 Ghz1536 DDR RAM nVidia GeForce FXWinXP Home on the road andPIV 3.4Ghz, 1536 DDR RAM, ATI Radeon 9700 WinXP PROYoke & Pedals CH Products at home

Why would you disconnect VNAV? Set the OPT on the MCP and VNAV will take you to it. No need to disconnect anything to acomplish this since VNAV works in conjunction with the MCP set altitude (it will not exceed MCP altitude in VNAV). Best,Randy J. Smith

Yes this is correct. In fact I found this about 30 minutes after posting my message.:-(But now would'nt this be a problem with traffic and ATC since OPT is about 4-5000 feet below MAX ALT?I can already hear the ATC... Sir........:-)RakhamToshiba Satellite P4 3.4 Ghz1536 DDR RAM nVidia GeForce FXWinXP Home on the road andPIV 3.4Ghz, 1536 DDR RAM, ATI Radeon 9700 WinXP PROYoke & Pedals CH Products at home

MAX alt is MAX for your current weight etc. OPT can be exceeded up to MAX. If ATC request a certain FL and you can actually get to this altitude then I see no issues ;-) otherwise you can simply state "Unable"..Best,Randy J. Smith

Good morning,Ok Randy thanks for your time and your help. I understand now.RegardsRakhamToshiba Satellite P4 3.4 Ghz1536 DDR RAM nVidia GeForce FXWinXP Home on the road andPIV 3.4Ghz, 1536 DDR RAM, ATI Radeon 9700 WinXP PROYoke & Pedals CH Products at home