Event manager Mandy Deans yesterday said Ms Krainz had an "extraordinary act" and she was delighted she could fit in a flying visit between other appearances in Europe.
Ms Krainz and her partner and pilot, Friedrich Friedel Walentin, will be bringing their Boeing Stearman biplane to Wanaka in what will be their first visit to New Zealand.
Ms Krainz said the pair were excited to be making the journey.
"We are anxious to see your country and we will try to stay also a little time for a holiday. When we fly the display I will not have a chance to see a lot around, but I hope we will make some press and photo flights before or after the airshow and then I will take a little time to see the amazing view," she said.
The display will involve a 10-minute flight with the aeroplane travelling at between 130kmh and 240kmh, doing loops, turns and rolls.
During start and landing Ms Krainz sits in the cockpit.
It was hard work but spectators would have some unforgettable moments, she promised.
Ms Krainz gained her pilot's licence in 1997 and holds an aerobatic licence.
She began wing-walking in 1999 and has undertaken more than 600 displays.
During her act, she communicates with her pilot by hand signals.
She is attached to the aircraft by a thin safety line.
A rack is erected on the aeroplane's upper wing but between the left wings she relies on muscular strength to stay put.
Ms Krainz said she had never felt frightened during a wing-walk.
"Flying is part of my life, specially the wing-walking.
My rule is if I get one time afraid or lose the respect I will stop directly."
Ms Krainz has a 15-year-old daughter who enjoys flying but prefers to stay inside the aircraft and had no desire to follow in her mother's footsteps.
It will be the second time a wing-walking act has been seen in Wanaka.
The first was more than 20 years ago at the first major airshow in 1988.
The Tiger Top team displayed then, using a de Havilland Tiger Moth piloted by Tony Renouf.
Warbirds Over Wanaka will be held during the Easter holiday on April 2, 3 and 4.
Mrs Deans said it promised to be one of the biggest shows ever staged, with over 70 aircraft involved in displays.
