Aerobatics (IMAC)

“Inspired by full-scale aerobatics, we strive to fly scale aerobatic model aircraft in a competitive and realistic manner that is challenging for the contestants as well as interesting for spectators”

The IMAC contest at the BMFA Nationals weekend 2017 is ‘the’ event for Scale Aerobatics enthusiasts.

IMAC UK holds a contest tour throughout the season where we fly across the country and this is the one where pilots will be aiming for their best results. Competition Director Richard Badham runs a smooth event and he will be aiming for a model to be airborne, flying a sequence straight after pilots briefing which is held around 9am.

You can expect to see pilots in each class flying precision aerobatics in a scale manner, with scale models of aircraft used on full size IAC tour – Extra 300’s, Extra 260’s, Yak 54’s etc. The airframes flown are around 2.1m to 3.1m wingspan, with engines used from 30cc single cylinders up to around 200cc quads.

Levels of difficulty range from the Sportsman class, Intermediate, Advanced and the top flight Unlimited class. Whatever the class, to fly the sequence well and achieve high scores requires considerable practice, dedication and consistency. The three day contest will see pilots fly the ‘known’ sequence throughout the day, with a challenging ‘unknown’ round to be flown once a day by all classes. The known and unknown flights are judged with each figure in the sequence initially given a maximum score of 10. Deductions from 10 are taken by the judge during the figure, such as 1 point for a change in radius, or 0.5 points for 5 degrees over rotation after a snap roll for example. It’s amazing how quickly the 10 diminishes, but a good judge always gives a pilot the benefit of the doubt. The scores are then digitally entered into the IMAC scoring system to show the standings for the class.

One of the truly great features of IMAC flying is we fly precision and freestyle rounds in the one contest. Around 5pm when the precision rounds have been flown, the freestyle round is run. Pilots fly a scale airframe (any size, electric or gas) of their choice to music and ‘anything safe goes’ in terms of manoeuvres flown. Freestyle is a fun round to fly and is a nice closing round at the end of the contest day.

Come and visit the IMAC flight line in the ‘Compound’ during the weekend, speak with the IMAC members and have a look at the airframes and flying. Follow the signs for IMAC UK.

Dan Gallo – IMAC UK P.R.O. 

Share