The Seoul Marina helicopter tour is the only one available in Seoul. Seoul Marina is a good place to start a trip in Seoul because it is convenient to come from the airport. Look around Seoul first in the sky and start your journey. In addition, a private yacht tour linked to the tour can be enjoyed together and take life photos while enjoying fantastic sunset at the shipboard cafe. If you are lucky, you can watch K-pop performances at the cafe square for free and learn to dance with them.
This study is an evaluation of the possibility to reduce the risk of landing of an unmanned helicopter in an autorotation manoeuvre. Using a point mass model, the analysis was focused on the main rotor system as it gave the highest impact on helicopter's total power required. Comparison on the characteristics of the original rectangular blade and modified quadratic blade was analytically and experimentally performed. From this study, it was found that, by using modified quadratic blade the steady rate of descent of the point mass model can be reduced by two percent and zero collective pitch is the best collective pitch correction setting after engine failure. Additionally, to make a safe landing by using this quadratic blade, landing flare phase is also needed to be performed.