The National Skydiving Championships are being held at Hibaldstow Airfield, with around 50 teams expected to compete.
The meeting will kick off with the formation four-way category, where current world champions Bodyflight Storm will look to defend their national title.
Another highlight will be a brand new discipline called Vertical Formation Skydiving (VFS).
This is the art of building formations in free-fall while taking on high-speed body positions such as feet-first or head-down.
The event will be staged for the first time in this country at the Hibaldstow championships, and four-man team Outbreak Vertical has high hopes of becoming its first champions.
The team, made up of captain Jim Harris, Dan Parker, Andy Ford and Mark Joyner, started training together last year.
Mr Harris said: "We're a group of skydivers who love the challenge of flying our bodies in any possible orientation, and we're really excited about the upcoming national championships.
"We've been training really hard over the past couple of months, and we hope it pays off."
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