American Champion Citabria 7ECA CO₂ emissions per flight hour
The American Champion Citabria 7ECA is a tandem two-seat high-wing taildragger with a 115 to 118 hp Lycoming. Its name spells “airbatic” backwards, and schools use it for tailwheel and basic aerobatic training. At a typical fuel flow of 6.7 US gallons (25 L) of avgas per hour, a American Champion Citabria 7ECA puts about 56 kg of CO₂ into the air for every hour flown.
- CO₂ per flight hour
- 56 kg
- Fuel flow
- 6.7 US gal/h (25 L/h)
- Cost to offset one hour
- $2.02
- Aircraft
- 2 seats, 115–118 hp
A year of flying in a American Champion Citabria 7ECA
| Hours flown | CO₂ | Cost to offset |
|---|---|---|
| 25 h | 1.40 t | $49 |
| 50 h | 2.80 t | $93.10 |
| 100 h | 5.60 t | $166.60 |
| 200 h | 11.20 t | $333.20 |
Costs are for the yearly plan, from $0.035 per kg with lower rates as the amount grows. The monthly plan is $0.036 per kg, and one tonne once is $40.
On the monthly plan, offsetting an hour in a American Champion Citabria 7ECA costs about $2.02. See plans
Run your own numbers
Enter the hours you fly in a year.
How the American Champion Citabria 7ECA compares
CO₂ per flight hour for common piston aircraft, at typical cruise fuel flow.
- American Champion Citabria 7ECA(This aircraft)56 kg CO₂/h
- American Champion Super Decathlon80 kg CO₂/h
- Cessna 172 Skyhawk88 kg CO₂/h
- Extra 300L151 kg CO₂/h
How we calculate this
Burning one US gallon of avgas releases about 8.31 kg of CO₂, so CO₂ per hour is fuel flow multiplied by 8.31. The figure covers combustion only, not producing or transporting the fuel.
Your real fuel flow depends on power setting, mixture, altitude and how much of the hour you spend climbing. If your logs give you an average burn, multiply it by 8.31 for a closer number.

Offset the CO₂ from every hour you fly
Retire rated carbon credits for the CO₂ your flights emit. Pick your aircraft and hours, and get a certificate for every order.