I know the reflective foil/tape is very light, but consider the possible
impact (a pun, perhaps?) of causing an imbalance on a control surface.

On 1/24/2017 11:49 PM, Ian wrote:
On 25/01/2017 01:00, Andrzej Kobus wrote:

There was another study that I posted a link to a couple of months
ago. That study concluded that a reflective foil (mirror like) is
hugely more effective than LED lights in bright light.

The UK Military gliding group did a study into high visibility markings
years ago. They did a bunch of flight tests with motor gliders. I think
they found that most markings were not very effective, but reflective
mirror strips on the control surfaces were the most useful. As the
controls move about there is more chance of a reflection flash
catching the other pilots attention.

It was written up in Sailplane and Gliding. It would probably be worth
finding that article before you spend money on anything.


--
Dan, 5J