From the flight path panel discussion at CooperCon 2021 with Cliff Ammerman. I went back and listened to my recording which is up on the Facebook group. Here are the relevant excerpts. Darren: “What do you think about that Cliff, do you think it’s possible that he actually did dictate the flight path based on the conditions he demanded the plane fly.” Cliff: “Yes certainly, If you’re going to fly south at ten thousand feet, Victor 23 would be the, the option that I think almost anybody would take. Just because you could fly at much lower altitude.” Darren: “Do you think he knew the plane would fly Victor 23?” Marty Andrade: “Based on that answer, I would have to say yes.” Marty Andrade: “I’m going to direct this to Cliff. Below 10,000 feet how many airways could they have picked, Victory 23 but there should be another one right?” Cliff: “There is another airway to the west called Victor 165 that still would be fairly low. Ugh, this was before the time that they had designed an airway for Portland basically direct to kalamath falls. Now there were high altitude airways but you had to be above 18k feet and obviously DB Cooper didn’t want to do that. So if they would of come back a few years later then this, he probably would of turned at Portland and gone directly to kalamath falls because it’s a more direct route to Reno. But then the min on the route out there is much higher. So my guess would of been then, that if DB Cooper wanted it low, he would of told them to stay on Victor 23 until they can hit further south and that’s just speculation.” Darren: “Well now that you have that information Marty what’s your answer?” Marty: “No I would say that given that, we know from the radio transcript that they were put on Victor 23, um if there really isn’t another option for them at the time then that’s the route they would of been on.” No mention of V27 from Cliff.