• 9lb/minute average Jet A fuel consumption for 5 passenger A-Star helicopter
• 60 minute fly time on a 90 minute tour = 540lb fuel and at 6.8lb/gal implies 79.40 gallons.
For 5 guests, 15.90 gallons each x 18.4 lb CO2/gal Jet A = 292.56 lb CO2 per guest or offset of $6.14
Data Source: http://www.wwheli.com/astarspecifications.htm
Date Source: https://www.eia.gov/environment/emissions/co2_vol_mass.php