Onya Tankie
OK the Section 4 entry is the soft target, and obviously the easy one to find. In this day and age I think we all realise that section 4 is not the same significant section as section 2. Having said that CASA certified this not the FAA so who knows what CASA consider non negotiable.
But anyway the big silly one is in section 2. It states;
NOTE
2700 RPM may only be used for take-off to a safe height as required to clear
obstacles or reach 250ft AGL. Operations at 2700 RPM are limited to a
maximum period of two minutes. For all other operations maximum power is
to be limited to MCP at 2500 RPM.
Now ask yourself the question why this was put in there? The obvious first response to the unknowing person is…..ohh its an engine limitation.
NOPE!!!
Anyone care to guess what they were trying to achieve, but in the end achieved the exact opposite, and effectively made life harder on the engine? (albeit slightly and not seriously, but harder, less efficient etc and certainly not optimal)
By the way, despite what the POH says, this is one case where if you operate one or own one, you would ignore this and use 2700 all the way to TOC, and before any rule nazi gets going, if you are in commercial ops you would rewrite your ops manual accordingly and get CASA to sign off on it.
It is akin to Toyota having in their operation manila a statement saying apply hand brake, start car, select D and drive off. This is a genuine mistake of a good idea with unintended consequences.
To achieve the desired outcome they should have written, take-off at 2500-2600 RPM, passing 1500' or maximum two minutes apply full 2700 RPM for the climb. If runway length or obstacle clearance dictates full performance use 2700 RPM for the entire climb.
Hopefully that has given a clue to the astute folk among you.
Sorry ….its a brain bender because of the way everyone has been bludgeoned into thinking the POH is beyond reproach! (Most have gross BS in them somewhere
)