u/Educational_Wing_687

I was recently at the Boeing museum of flight and found this probe on the empennage of the B707 that I couldn't identify. One of the volunteers suggested that it could be an early navigation antenna but it looks heated or something. If anybody knows Id love a little knowledge. Thanks!

Edit: its a scimitar antenna! Thank you people of reddit https://en.wikipedia.org/wiki/Scimitar_antenna