Federal Aviation Administration (FAA), U.S. Department of Transportation, has several advisory circulars available free of charge for heliport design. Check the FAA.gov site. Suggestions for the markers and markings can be found in the FAA publication titled "Heliport Design, Advisory Circular 150/5390-2A". See Link with some details and recommendations.
Crane rocking clearance refers to how much space is available for a crane to move. A specific amount of space is needed to use a crane safely.
in their space ships space
The helicopter was designed for situations where aircraft were needed which could takeoff and land in a very small space.
ground clearance?
Bearing clearance is the distance between the crankshaft journal and the bearing surface. It is usually referred to as oil clearance, as that's what is occupying the space.
No, only specially designed rockets can go up into space. As soon as a helicopter reaches our atmosphere boundaries, it would burn up. Rockets on the other hand, have been specially made to hold such extreme temperatures. :)
Yes a space station carries humans in order to help the rocket leave safely and come back safely
cleaner app for space clearance
After going into space, yes, he returned to Earth safely.
Yuri Gagarin was the first person to go to space on April 12 1961 and returned safely.
yes
A clearance fit is an a assembly where there is a space between the two parts. The shaft is always smaller than the part it fits into.