Austal's (ASX:ASB) earnings are expected to rise in 2027 and 2028, over 2026, driven by a long-term order book, Euroz Hartleys said in a note on Monday.

It assumes an over AU$3 billion in revenue at around 8% per annum or over AU$250 million in earnings before interest and taxes (EBIT) for the best part of a decade, once mature and supported by a AU$17.7 billion order book.

US shipbuilding and Australian margins only need to be steady on increased activity to increase EBIT, Euroz Hartleys noted.

The investment firm retained its buy rating and AU$7.71 per share price target on Austral.