[@Voltus_Ventus]Does your silence mean my flying bomb concept is accepted?
It worths noting that my rocket-propelled bombs (wow, I may make that name official) aren't really guided weapons in the typical sense.
The forward observers spot a target and the radio equipment sets a guiding beam towards that point. To travel the whole 70 kilometers the rocket would need over 5 minutes. It rides the beam and with a rough accuracy explodes at the designated area.
This is an area bombing measure and cannot be used to target tanks or warships (unless there's a guarantee they sit still for that long).
Basically this is rocket-based artillery.
Would it be fine?

[img]http://www.ausairpower.net/USN/BGM-109D-1.jpg[/img]

EDIT:
Did further research on the topic and the "mithril-made rocket V-1" would have the range of 80km and unlike the supplied picture above it'd be more compact, around 3.9m long.
My rocket engine would be a variation of this:
[url]https://en.wikipedia.org/wiki/Walter_HWK_109-500[/url]