SINGAPORE, Jan 20 (Reuters) - Singapore's national carrier, Singapore Airlines Ltd SIAL.SI, has launched a 10-year Singapore dollar senior note offering with initial price guidance at around 2.95%, a term sheet showed on Tuesday.

The notes are direct, unconditional, unsubordinated and unsecured obligations of the carrier and will be issued under its S$10 billion ($7.78 billion) multi-currency medium-term note programme, according to the sheet.

Proceeds will be used for aircraft purchases and related payments, and for general corporate or working capital purposes, including refinancing existing borrowings, the sheet showed.

The bonds pay interest semi-annually, with the first coupon due July 30, 2026, and mature on January 30, 2036.

DBS DBSM.SI, OCBC OCBC.SI and United Overseas Bank UOBH.SI are joint global coordinators. Standard Chartered Bank STAN.L joins them as a joint lead manager and bookrunner.

($1 = 1.2853 Singapore dollars)

(Reporting by Yantoultra Ngui; Editing by Christian Schmollinger)

((Yantoultra.Ngui@thomsonreuters.com;))