Pilot Operating Handbook
H3 Sport 135 HP
SECTION 7
SYSTEMS
Dynali_POH_H3 Sport 135 HP Rev. 3.3 – Issue date 15.01.2021 Page
63
SECTION 7 -
SYSTEMS
The purpose of this chapter is to introduce the pilot who has not assembled his Dynali
H3 Sport to the various systems forming part of this helicopter.
Further information can be found in the assembly manual. We advise all pilots to read
through this in order to better understand the design and mechanics of the Dynali H3
Sport.
7.1
AIRFRAME & UNDERCARRIAGE
The basic protective structure of the chassis is made from welded tubular steel tubes
to provide maximum passive safety for the crew. The tubes are all connected to each
other by TIG welding. The main tubes are all of a diameter 25 mm with a thickness of
2 mm, providing thus excellent resistance to fatigue. The airframe and engine mount
are inflated up to bar to ensure the frames are leak-tight. Two light indicators located
on the dashboard, FRAME Main and FRAME Engine, indicate a loss of pressure. They
light up when the pressure in the main frame (FRAME Main) or the engine support
(FRAME Engine) is lower than 2,5 bar.
The possible leak can come either from the valve, or, in the worst case, from a crack
in the frame. In any case of doubt, inflate pressure in the airframe and search for the
origin of the leak.
The undercarriage is made of aluminum skids and carbon legs. It is a shock absorbing
design with two legs designed for progressive deformation on each side (passive
safety). The metal inserts located in the front of the skid tubes are necessary to avoid
excessive vibration.
The tail boom of the Dynali H3 Sport is made of aluminium. It is supported by two
carbon struts.
The cabin body is made from vacuum-infused carbon fibre but has no structural role
.
Summary of Contents for H3 Sport 135 HP
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