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Control Line Combat

08/04/2024 to 08/09/2024

For detailed information see the IAC Calendar.

Wild and exciting action in Combat makes it a favorite event for spectators. Two highly maneuverable aircraft, each towing a streamer, attempt to cut each other’s streamers or string leaders. Scoring is by cuts and airtime within the five-minute match period. Scoring a cut on the streamer is worth 100 points. Each aircraft also scores one point for each second it is airborne during the match.  In some events, cutting the string leader constitutes a “kill,” ending the match.  1/2A Combat uses tiny .049 engines and 35-foot lines.  There are no restrictions on aircraft design, and kills end the match.  Slow Combat uses large aircraft and .36 engines, restricted to suction fuel feed. Don’t let the name fool you; matches can be exciting, with speeds of up to 100 mph. There is no kill.  AMA Combat, also known as “Fast Combat,” is the top-gun Combat event, and the flying is among the most exciting and demanding in all of model aviation.  Engines of up to .36 size turn more than 20,000 rpm and haul the highly maneuverable aircraft at up to 125 mph. Kills end the match.  FAI Combat is the international class.  Competitors are allowed two .15-size powered aircraft per match.  There is no kill.

Nats News

2020 Outdoor Nats to Proceed as Scheduled

After careful deliberation, the AMA Executive Council has agreed to not cancel the 2020 Outdoor Nats. This decision is aligned with state and federal guidelines for events concerning COVID-19.

The 2020 AMA Nats will take place to the extent that individual Nats organizers plan and conduct their respective events. Additional safety measures will be in place to protect our members, staff, and community. Nats participants and visitors to the International Aeromdeling Center will have limited access to AMA facilities and should anticipate a scaled-back Nats experience.

July 21, 2019: CL Combat

By Phil Cartier

Fast Combat has been growing slowly at the Nats the last few years. This year saw 10 fliers competing. Most of the action has moved to F2D, mainly from the chance at getting on a US World Cup team and the ease of buying and shipping top-performing models at a fairly reasonable cost.

July 20, 2019: CL Combat

By Phil Cartier

1/2A Combat is a bit like swatting mosquitoes. The planes are small (proportional to Fast Combat aircraft), have very tight turning, and are difficult to see. It’s hard on spectators, buts great fun for the pilots. The planes are scaled down and look like Fast Combat aircraft to the pilots. They just pull a lot less—a couple of pounds instead of 12 to 15 or more. The aircraft are cheaper too.

July 19, 2019: CL Combat

By Phil Cartier

Speed Limit Combat keeps the speed below 75 mph. A total of 21 fliers turned out, including some who generally don't travel extensively except for the Nats. This year brought out a more-limited range of engines. The list included Fora 15, LA and FP, Fox 36, Nelson, LA 40, and probably one that I missed.

July 18, 2019: CL Combat

By Phil Cartier

F2D Fast is a favorite with some F2 fliers. Any F2D plane from 2010 to present is allowed. They all have the same technical specs. The rules are AMA Fast Combat rules otherwise.

The bugs have been worked out. The planes fly the same as F2D. The shorter line length makes up for the slower speeds. Flying seems just as fast as AMA combat, but the line pull is a lot less. The planes have to be trimmed a little better because they don’t pull 15 or more pounds.

July 17, 2019: CL Combat

By Phil Cartier

The closing day for the F2D Nats went pretty slick right up to the end. Flying started promptly at 8:04 a.m. It ended just before 1 p.m., before the rain came.

The early weather was very nice—about 80° with mild breezes. It got windier before noon, and the last 45 minutes or so were flown with gusts up to 25 mph. Most of the fliers handled it pretty well. The crashes were mainly dead-stick, or when the wind mixed the planes up and the lines tangled.