Runway upgrade improves airfield Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window) A RUNWAY upgrade will allow larger and heavier planes to land at Colac’s airfield. Contact the authorby Kate Deppeler May 21, 2012 A RUNWAY upgrade will allow larger and heavier planes to land at Colac’s airfield. Unlock full access to Colac Herald - Subscribe today! Subscribe Now Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)