Helicomparator - you said "there is a general move to get rid of nets" - is that your observation or a stated policy, as it is contrary to CAP 437
Quote - "Recent experience has shown that the removal of landing nets on some installations
has provided undesirable side-effects. Although the landing net was designed
specifically to enhance the friction properties of helideck surfaces, it would appear
that its textural properties can also provide pilots with a rich set of visual cues in terms
of rate of closure and lateral movement which are essential for pilots in what can
otherwise be a poor cueing environment. Serious consideration should be given to
this aspect before a landing net is removed. The helicopter operator should be
consulted before existing landing nets are removed and Installation operators should
be prepared to replace landing nets if so advised by the helicopter operator in the case
that visual cueing difficulties exist. For these reasons it is also recommended that the
design of new Installations should incorporate the provision of landing net fittings
regardless of the type of friction surface to be provided."