if our fastest and most aerodynamic fighter jets go 2,000mph, what is special about rocket ships that allow them to achieve 25,000mph for escape velocity

Question

I just always assumed to achieve higher speeds in the universe you needed to be smaller and more aerodynamic. The Lockheed Blackbird is the fastest fighter jet we have and it goes only 2000mph. This fighter jet seems like it would be more aerodynamic than a rocket ship.

What is special about the rocket ships that allow them to achieve 25,000mph without being disintegrated when leaving the atmosphere and achieving escape velocity to go into space?

Any help would be greatly appreciated.

In: 3

Answer 1

Airplanes are horizontal and designed to fly carrying things point to point EG LAX-LHR. Rockets are vertical and 90% of the mass of the rocket is to elevate the comparatively small load of 400KG to space. As the rocket increases in elevation there is less air resistance and so the aerodynamic shape matters less

In terms of the universe none of these vehicles are close to getting to 90% of the speed of light (269M m/s) Once you leave Earth’s atmosphere aerodynamic considerations are irrelevant.