Definitely. Rule of thumb in a jet is to slow down if you're closer than 3x the altitude. So at 8k feet you want to be at least 24 nautical miles (27 normal mil

Definitely. Rule of thumb in a jet is to slow down if you're closer than 3x the altitude. So at 8k feet you want to be at least 24 nautical miles (27 normal miles) away or if closer you want to be slowing down (or descending). If you don't slow down before you're going to have to do so in the descend and typical jets can't really slow down much in that.