For a flight between CYYZ and CYYC, the distance is 687 NM with a groundspeed of 258 KTS. What is the EET (estimated enroute time)?

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Multiple Choice

For a flight between CYYZ and CYYC, the distance is 687 NM with a groundspeed of 258 KTS. What is the EET (estimated enroute time)?

Explanation:
The main idea is that estimated enroute time equals distance divided by groundspeed, with the result in hours converted to hours and minutes. So, 687 NM divided by 258 knots gives 687/258 ≈ 2.660 hours. That’s 2 hours plus 0.660×60 ≈ 39.6 minutes, which rounds to about 2 hours 40 minutes. Therefore, the estimated enroute time is roughly 2:40. In practice this assumes a constant groundspeed along the route; winds or routing changes would alter the time.

The main idea is that estimated enroute time equals distance divided by groundspeed, with the result in hours converted to hours and minutes. So, 687 NM divided by 258 knots gives 687/258 ≈ 2.660 hours. That’s 2 hours plus 0.660×60 ≈ 39.6 minutes, which rounds to about 2 hours 40 minutes. Therefore, the estimated enroute time is roughly 2:40. In practice this assumes a constant groundspeed along the route; winds or routing changes would alter the time.

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