Northern Stars aerobatic teamNorthern Stars aerobatic team Manfred RadiusManfred Radius RCAF Snowbirds season openerRCAF Snowbirds season opener RCAF Snowbirds season openerRCAF Snowbirds season opener RCAF Snowbirds season openerRCAF Snowbirds season opener Trevor Rafferty Pitts Model 12Trevor Rafferty Pitts Model 12 Martin Hivon Yak 55Martin Hivon Yak 55 Martin Hivon Yak 55Martin Hivon Yak 55 RCAF Snowbirds season openerRCAF Snowbirds season opener Chippewa Valley Air Show_Ken Cheung