Sir - Having read the article "Executive Jet orders Netjets Gulfstreams (Flight International, 16-22 October, P24), I am at a loss to understand who would want to part with such a vast amount of money to take a share in aircraft already available on the open charter market.

You could pay by the hour for the use of an aircraft (say, at $4,500), which would mean that 100h would cost $500 million in charter.

You can then return the aircraft, without suffering from the effects of depreciation, or those of opportunity cost to the investment, and there is also no noose around your neck when you decide that such expensive assets are no longer in the best interests of the shareholders.

TIM PROCTER

Managing Director

Air Charter

Gatwick, Sussex, UK

Source: Flight International