Originally Posted by
dracir1
Normal taxi times are about 12 minutes for both takeoff and landing. Let's use 15 mins for an example. Each engine burns approx 600 lbs / hr at idle and requires a 3 minute cool down (or 3-5 minute warm up). So, that's 12 minutes of SE taxi (saving 240 lbs of fuel) or about half of what you're claiming.
The 400 lbs I mentioned isn't just SE Taxi, It's the whole package. Not doing .80/300 everywhere, SE Taxi, Flaps 3, the works. It comes to a lot more than 400lbs
Originally Posted by
CGLimits
Thank you. I start the APU 2 minutes after landing, single engine 3 after landing. As soon as the parking brake is on both engines are off. To me it’s a safety issue, period. And I am willing to bet I use less fuel than sitting at the gate for 5 min waiting to get plugged in.
I'm willing to bet you are right, but there are other costs besides fuel.
Originally Posted by
CGLimits
…in fact, while taxing on contaminated surfaces two engine taxi is a requirement…so…and you can always shut one or two down if you encounter a delay.
Yeah, We know.