Australian swimming's fresh wave face world title test

Taylor is overseeing a Dolphins team with a near-quarter of debutants, plus five new coaches, at the championships starting on Sunday in Singapore.

"We don't have a footy game every week, we go once this year," Taylor told AAP.

"So we have got to make sure that they get the experience.

"Next year we will have a multiple competitions that they will be exposed to.

"But the first one is the one that will test their resilience."

Proven performers and gold-medal winners including Kaylee McKeown, Kyle Chalmers, Cam McEvoy and Mollie O'Callaghan form a core of a team including 10 world championship rookies including 16-year-old breaststroker Sienna Toohey.

And the 10-strong coaching team under Swimming Australia's head coach Taylor has been revamped after last year's Paris Olympics with five fresh faces.

Taylor was impressed with integration of the newcomers at the Dolphins' camp in Darwin before arriving in Singapore.

"Having new people come in - a quarter of the team, half the coaching staff -  they slotted in really well, it was really nice to see. That is the first step," he said.

"The second step will be when they get into competition, obviously anything can happen.

"It's going to be how they manage themselves, manage the ups and downs that come with it.

"We have had a pretty consistent group of coaches and athletes over the last cycle that we worked with. This is just a new test for us as a leadership."

The titles were vital for Taylor's plans for the ultimate goal, the 2028 Olympics in Los Angeles.

"I want to be able to look at the next three years to ensure we're working on all the key things for LA," he said.

"I just want to know where are our gaps, where are our strengths ... and what do we need to be doing about it as an organisation."

Australia will unveil a revamped women's 4x100m freestyle relay team on night one at the Singapore Sports Hub.

The retired Emma McKeon and Shayna Jack, who missed selection, are missing from the relay team that won Olympic gold last year.

Also on night one, Paris silver medallist Elijah Winnington and a rejuvenated Sam Short renew rivalry with Germany's Olympic champion Lukas Martens in the men's 400m freestyle.

And with Ariarne Titmus yet to return post-Olympics, Lani Pallister will fly the Australian flag in a highly-anticipated women's 400m freestyle boasting Canadian Summer McIntosh and American legend Katie Ledecky.

McIntosh, at Canada's trials last month, regained the 400m free world record from Titmus and also set global records in the 200m individual medley and 400m individual medley.

Australian Associated Press