The reconstruction of tail bottom Dauphin Helicopter 9M-IGB using range photogrammetry / Siti Safariah Mahat

Visualisation in 3-dimensional of an accident wreckage is limitedly used. This paper
explores how a reconstruction of a body part Dauphin Helicopter AS 365 N3/9M-IGB
which is the boom tail of the helicopter by using a Photogrammetry technique, the
Close Range Photogrammetry (CRP) as a counter check of the investigation done by
the Air Accident Investigation Bureau (AAIB). Images of the tail boom were taken
from each side of the object in order to have a high quality three dimensional view.
Prior investigations, the remaining of the helicopter was laid down and arranged in
two dimensional in order to investigate the cause of the accident and to identify which
parts of the helicopter was missing. Therefore, the aim of this study is to define the
damages of the tail that cause the crash in 3d visual. This study is conducted to
develop the tail in 3-dimensional using CRP, differentiate the 3d visual with the actual
image and to distinguish the impact of the detached part of the tail. The three
dimensional model is generated using Agisofl Photosean software where the
visualization is then compare and analyze using CAD software. In conclusion, a high
accuracy of 3d image can be generated from a good orientation of a photo and with
adequate light exposure.