How were the technical works in the time of Solomon (as) possible, and did he have aircraft?
Earlier peoples reached a mastery in certain fields, above all in building, that still amazes us today, and God Himself had taught them. Solomon (as) had no aircraft. His command over the wind refers to sailing ships that travelled with the changing winds.
People who look at ancient buildings are often amazed. For the pyramids, stones weighing many tons were raised to great heights without modern machines. They are aligned so precisely north and south that engineers still have no satisfying explanation. Some even suggested that beings from space had helped the people of that time.
The Holy Qur’an gives a simpler answer. God taught earlier peoples arts such as building, in a way that was not surpassed later. So the people of today should not be proud. This does not mean, however, that those peoples were more advanced than we are overall. They were great in particular fields. We have advanced far in many other directions.
Solomon’s (as) command over the wind must also be understood in terms of his own time. Back then, sailing ships were the most important means of transport. His kingdom traded along the coasts. The winds there blow in one direction for a season and then turn around. So the ships sailed out with the wind without effort and returned when it changed. This is exactly how the second verse above describes it.
Aircraft were unknown in that age. Had they existed, traces of them would have been found, since great achievements always leave remains. No such traces exist. The palace of glass, on the other hand, shows a real art of building that God had granted to Solomon (as) and his people.