Hi,
the number of flights per week is calculated in the final margin. The evaluation tool keeps an average maintenance contractor in mind, calculates how many flights you can perform per day, and then calculates the leasing cost per flight.
This becomes very important when one plane can perform one daily return flight (14 flights per week) and another plane can perform two daily flights (28 flights per week). According to the aircraft evaluation tool, the first aircraft will be much less profitable because it has a very high leasing cost per flight. But with an efficient maintenance contractor you can also perform two daily flights. And if you can only do one flight, you will add a second flight to a destination that is closer. Nobody let’s a plane fly 11 hours per day, and then leaves it on the ground for 13 hours… except the aircraft evaluation tool
If you want to compare aircraft, find a route where both aircraft can perform the same number of flights. Use a distance that is as close as possible to the route you really plan to fly, because fuel consumption is not always linear.
But keep in mind that, with the same seats and on-board service, the CRJ will give you a higher ORS rating than the Dash. If you want the same overall rating, you will have to lower your price. And that means a lower profit margin.
Jan