Why does the Boeing 707 have a spike on the top of the tail?
Balance. Same with its wings. If you’ve seen the 747 Jumbo Revolution Documentary :)
I think it has something to do with the desent
It is for birds. :)
Can you elaborate? I only got to see half of the documentary. :)
Sorry, what I meant to say was, there was too much flutter on the wings, so they added those tips to reduce drag and keep the wings on balanced with the wind :)
Not sure how the tail “spike” is relevant to the 747’s wing “spikes” because there are no wing “spikes” on the 707 as far as I know.
It’s a radio atenna for long distance transAtlantic ops
Yup. HF antenna.
But a few posts down, someone shares my opinion that it is a bird spear.
Ah that’s what it’s called! I remember getting burned for not putting the HF part in while talking with another avgeek ( :/ ).
Thx for HF reminder
If I can recall, Air Force One (VC-25) has one on its tail. As well as the ones on the wings.
It is a weight to prevent Tail Flutter. Just like pre -400 Boeing 747 wing weights to also prevent Flutter.
Air to air refueling???
On a serious note, I would say for the radio usage as @Boeing707 mentioned. Pain in the ass HF usage :|
Liked the idea of ATAR receiver…was thinking more of a very long pitot tube…
Ahhh such a beuatiful plane!
I pick first officer clothing rack
You have a state of the art aircraft with CPDLC, you don’t need that stuff. But some people still do things the old fashioned way. XD
Even with cpdlc onboard it is mandatory to make HF contact :|, but that’s only one call no need for position reports etc.
I know it is a HF antenna but If was not a avgeek I would think it is for harvesting lightning for electrical use
Old days of aviation captain…
I thought it was for handling the Lightning