%0 Journal Article
%T Retarded Harrier Maneuver as a New and Efficient Approach for Fixed-Wing Aircraft to Achieve S/VTOL
%A Chung-Kiak Poh
%A Chung-How Poh
%J Advances in Aerospace Science and Technology
%P 81-92
%D 2021
%I 
%R 10.4236/aast.2021.62006
%X Modern day
VTOL fixed-wing aircraft based on quadplane design is relative<span style=\"font-family:Verdana;\">ly simple and reliable due to lack of complex
mechanical components</span><span style=\"font-family:Verdana;\"> com</span><span style=\"font-family:Verdana;\">pared to
tilt-wings or tilt-rotors in the pre-80¡¯s era. Radio-controlled </span><span style=\"font-family:Verdana;\">aerobatic
airplanes have thrust-to-weight ratio of greater than unity and are capable of
performing a range of impressive maneuvers including the so-called harrier
maneuver. We hereby present a new maneuver known as the retarded harrier </span><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\">that is applicable to un/manned fixed-wing aircraft
for achieving VTOL flight with a better forward flight performance than a
quadplane in terms of weight, speed and esthetics.</span></span></span><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\"> An airplane with tandem roto-stabilizers is also presented as an
efficient airframe to achieve VTOL via retarded harrier maneuver, and detailed
analysis is given for hovering at 45¡ã and 60¡ã and comparison is made against
the widely adopted quadplane. This work also includes experimental
demonstration of retarded harrier maneuver using a small remotely pilot
airplane of wingspan 650 mm.</span></span></span>
%K Fixed-Wing Aircraft
%K Roto-Stabilizer
%K Vertical Takeoff and Landing
%K Short Takeoff
%K Harrier Maneuver
%K Distributed VTOL System (DVS)
%K Urban Air Mo-bility (UAM)
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=109412