Throttle procedures for Boeing and others
Hello,
This is an old topic but what was said make me curious.
If I try to summarize.
1. Hand-flying: fly with manual throttle.
2. Precision approaches:
Automatic landing are done with A/T engaged.
In case of A/T unserviceability, autoland can be realized with manual throttle control.
3. On 737 Classic and NG and 757:
approach and landing can be realized A/T armed (for engagement in MCP SPD I suppose) and manual control of throttle.
=>this is realized with AP disconnect so only in non-precision approaches or in CAT 1, isn't it ?
Do I have well understood?
This makes me wondering on other points.
4. Generally speaking, is the RETARD mode related to autoland ?
I mean, even if you do an approach CAT2 with A/T engaged but without autoland available (failure on AP system design), do pilots have to disengaged A/T to do the RETARD or is the A/T design to RETARD anyway ?
(I realize that a general answer to my question may be difficult due to link to the design of aircraft series. 
Is it possible to compare Boeing A/T philosophy and Airbus A/T philosophy for the RETARD ?)
5. Then, what about the call-out “RETARD” ? With Boeing A/T, retard is automatically done. So is there only a call-out done by PNF when hand-flying or an auto call-out in both manual and auto-fly ?
Last edited by airfriend; 12th Feb 2010 at 07:24.