Originally Posted by
john_tullamarine
(a) keep in mind that you may be playing with varying the design rule book for your jurisdiction should you intentionally come aboard at speeds lower than what the AFM/POH suggests. Potentially, that could present a legal concern in the event of a mishap.
Some manuals will take into account different approach speeds for different weights. For example the TB20 gives you performances with two different weights leading to two different speeds.
Another problem I would like to point out on this topic is that some light aircraft operators tend to recommend speeds higher than 1.3Vs and higher than the manual.
If the manual tells you to approach at 1.4Vs, for example, then OK. But if the manuals recommends 1.3 and your airclub 1.6, what then ?
This will lead to a habit of very long flares.