Russian aircraft lessor Avialeasing has converted a letter of intent for 24 Sukhoi Superjet 100 regional airliners into a firm order valued at $715m at this year’s Paris Air Show.

The aircraft chosen by Avialeasing in a letter of intent signed at the Farnborough Air Show in the UK in July 2008 are now confirmed and scheduled for delivery between 2011 and 2013.

Avialeasing still holds a letter of intent for a further 16 Superjet 100s.

Sukhoi plans to revitalise the Russian aerospace manufacturing sector by building 70 Superjets a year by 2012.