If Kohlberg Kravis Roberts is cornering the market in retail bids, with its dual pursuit of Sainsbury's and Alliance Boots, fellow US private equity house TPG has developed a taste for airlines. And like all serious plane-spotters, the former Texas Pacific Group seems determined to tick off every tailfin in sight.
Not content with engineering a landmark buyout of Qantas, the Australia flag carrier, TPG has bid E3.41bn (£2.3bn, $4.6bn) for Iberia, the Spanish national airline. At the same time, the US group is eyeing Alitalia, which this week attracted a surprise bid from Aeroflot.
The firm has proved its aviation credentials with turnarounds at airlines including Continental and America West. With investors fighting to throw cash at private equity firms, TPG has gone into a plane-spotting frenzy.
The Qantas deal has hit turbulence, with a minority stakeholder holding out for an increase in the A$11bn (£4.5bn) offer price. But just getting to the stage where Australia would consider allowing foreigners to buy a slice of its national treasure was an achievement in itself. TPG, part of a consortium led by Macquarie Bank, engineered enough of a local flavour to calm local concerns.
In bidding for Iberia, TPG faces similar issues of national pride. Under the bilateral air treaty between Spain and Latin America, Iberia would forfeit access to key South American cities if control of the airline passed to a foreigner.
Iberia is the leading airline flying between Europe and Latin America, with 19% of the market (Air France has 17%) and its long-haul routes are the prime attraction to a buyer. In common with other European national carriers, Iberia's domestic and European routes have been hit by competition from low-cost airlines.
As a non-airline, TPG would be better placed to team up with Spanish partners to take control of Iberia while defusing a row over foreign ownership. But while the strategy has worked in Australia - at least in getting the deal to the final stage - Iberia is more complex still. The fly in the ointment, or potential saviour, is British Airways.
BA owns a 10% stake in Iberia and has a say over a further 30% of the shares, thanks to an arrangement with minority shareholders including bankers BBVA, tobacco group Altadis, and retailers El Corte Ingles. The shareholders must offer their shares to each other before selling to an outsider.
Even if BA speaks for a potential 40% blocking stake in Iberia, its intentions remain unclear. It has appointed UBS, the Swiss investment bank, to explore options ranging from a sale of its 10% Iberia stake (currently worth E377m) to a merger with the airline.
Analysts are sceptical that BA would bid for Iberia. BA has pledged to spend £800m on new aircraft orders and is grappling with a £2.1bn pension fund deficit. A move on Iberia would require an unpopular rights issue. It is more likely that BA will look to closer ties with Iberia, possibly working with TPG.
It is all part of the jockeying for position to follow the new Open Skies treaty between Europe and the US, which will throw Heathrow open to all-comers from March 2008.
British Airways controls 41.4% of takeoff and landing slots at Heathrow; it needs to maintain its grip on the airport while covering its bases elsewhere in Europe. Iberia could be part of the strategy.
In further horse-trading, BA has been tipped as a bidder for BMI, the former British Midland, although a bid is unlikely as long as Sir Michael Bishop, BMI's founder-chairman, holds a controlling stake.
Spain aside, TPG is considering its position in Italy, where Aeroflot, the Russian flag-
carrier, has unexpectedly tabled a £900m bid for Alitalia, the loss-making national airline. TPG has been contemplating a bid as part of a consortium including Mediobanca, the Italian bank.