reported earlier Undercarriage indication and warning horn

[450Devil]

The current operation of the undercarriage indication lights seems somewhat at odds with the Air Ministry's Mosquito Flight Operating Manual. The two red lights should extinguish once the undercarriage is up and locked. Except when the throttles are set at less than one quarter open. Also the undercarriage warning horn should only operate when the undercarriage is locked down AND the throttles are less than a quarter open. At the moment the warning horn operates at about boost 5 which is about a quarter open when RPM is set to 3000 as at 3000 RPM you can advance the throttles to about 20 lbs boost. However at lower RPM settings the amount of boost available reduces with lower RPM settings. For example, at 2850 RPM the boost available is only about 18 lbs. Therefore one quarter throttle at one quarter throttle the boost would be 4.5 lbs. Etc, etc for lower RPM settings. Unless the trigger for the undercarriage warning horn is built in to the throttle quadrant, then the crew would be constantly annoyed when operating at low RPMs such as when conserving fuel on a long distance flight.

[Euan Emblin]

Yes, I cruise at 2650/7 lb boost and the warning horn is activated, not where it should be.

[NineLine]

This was reported earlier, thanks.