Club need for rescue boat / tender -
Lightning dinghy is powerful but not capable of self rescue
Source - Killyleagh yacht Club archive
http://www.lightningclass.org/resources/historyLightning/Ireland/killyleagh.pdf
But in the right hands fun for an 8 year old crew @ Killyleagh 2005
or indeed an 80 year old helmsman at Dundrum Regatta 2012