15,12
Most modern bunk beds will come with child safety rails for the upper bunk. For those older beds that don't include rails, you can purchase add-on rails to make the bed safer for your child.
Manned missions to the moon: there have been eight successful manned missions to the moon, including six landings.
Manned is a verb (past tense of man) and an adjective (a manned post).
What we need now is a volunteer for our manned mission to Mars. They courageously manned the forward cannons.
I believe the rails were wooden.
The inside rails inside of the main rails are called guard rails. They are there so that if there is a derailment the train will stay within the rails instead of off of the trestle.
You would need rails, detector rails, power rails, and minecarts.
1,7-17 were manned apollo missions
riding the rails was a common term in the great depression. You hop on a train and ride the rails.
Entertainment that is modern for the modern times.
All Shuttles were manned. STS-1.