I don’t think there is a cargo 717. Also I think it is just because there cheap and people would worry about being on an old plane but cargo of course is unaware of its soundings.
It’s definitely not because airlines don’t have money. UPS for example just bought 14 more 747-8F for their fleet.
Airlines may stick to a certain type of plane for a while because of the crew training involved. Training the ground crew and the pilots takes a lot of time and money.
Probably because most of their aircraft are at least second hand, used airplanes. For that reason, they tend to be old.
But I don’t think it’s so common for that to be the case. FedEx operates 767s and 777s. UPS operates 747s and 767s, and most flag carriers operate 777s, 767s or 747s as their cargo aircraft.
FedEx still uses MD-11, MD-10, 767, 757, A310 (might all be gone) and A300.
UPS still uses the MD-11, 744, 767, 757 and A300
Even the larger companies still use older aircraft. I’m not an insider for either but it feel it’s kinda like a “if it still works why not use it?” Situation.
And yes, they are updating their fleets, but if a plane is still making profit, why kill it off?
Buy a used plane at a discount, scrap the fancy interior so you dont have to maintain it. Profit.
The same model is used elsewhere with cars/trucks. I would rather buy a used airplane than a car. At least with the plane you hopefully have more detailed service records.
A lot of it comes down to utilization. During the day, most passenger planes sit around for about 1-2 hours in between flights, and are flying most of the time. The game is very different for cargo aircraft, they sit around for hours, which means less flight, so less cycles, so less wear, which extends life, which amounts to older planes.
Another reason is cargo airlines doesn’t care passenger comfort. There is no need to upkeep he latest and greatest planes to try and win clients. Boxes don’t really have an opinion about if it’s a new LED interior or not.
It is not only cheap to buy but also passengers often feel not happy about flying on an older aircraft, but when your passengers are mail and amazon boxes comfort doesn’t really matter and there is no point getting newer planes because they do their jobs just fine, hope this helps.