subsidy rate of $203,360 from December 1, 2009, through April 30, 2011. Order 2011-9-11 (September 15, 2011): re-selecting Warbelow's Air Ventures, Inc., to provide essential air service (EAS) at Central and Circle, Alaska, for a combined annual subsidy of $275,598 ($137,799 for each community). Warbelow's will provide five weekly round trips over a Fairbanks-Central-Circle-Fairbanks routing from December 1, 2011, through November 30, 2013. Warbelow's will use 8-seat Piper PA31-350 aircraft but will gradually phase in 9-seat Cessna 208B aircraft as the carrier retires the PA31-350. External links Topographic map from USGS The National Map FAA Alaska airport diagram (GIF) Airports in the Yukon–Koyukuk Census Area, Alaska Essential Air Service