Pilot Operating Handbook
H3 EasyFlyer Sport
SECTION 7
SYSTEMS
Dynali_POH_H3 EasyFlyer Sport Rev. 2.5
– Issue date 30.10.2020 Page
52
The stainless steel sleeves have a small slot in the middle. It enables the sleeves to
open under shock, preventing the breaking of the aluminum legs.
The tail boom of the Dynali H3 EasyFlyer
‘Sport’ is made of aluminum. It is
supported by two carbon struts.
The cabin body is made from vacuum-infused carbon fiber but
has no structural role.
7.2
ENGINE & ENGINE MOUNT
The engine mount is made from stainless steel. It is mounted on two silentblocs which
damp the vibrations throughout the airframe and is
suspended on two rods which
act as a clutch by lowering
(for tensioning the belts)
or raising the engine
(releasing
the belts). When tensioned, the system is automatically locked (rods are on the other
side of the tensioner axis).
Different engines can be installed in the H3, all based on the 900 series of BRP
ROTAX :
From this engine, Dynali can offer three different engine configurations :
➢
The
Rotax 912ULS 100HP
, which is suitable for pilots who have a sound mastery
of power management. This engine is equipped with two carburettors and is well
known and very popular on account to its simplicity and reliablity. However, the
useful payload is limited due to the reduced power reserve.
➢
The
Rotax 912ULS-I 110HP with INJECTION
, which provides additional
horsepower thanks to the ECU controlled electronic injection system and increased
air supply through the manifold intake. This configuration has been bench tested
by Rotax Germany in additional to many hours of flight tests by Dynali. The
advantage of this solution is that it provides an improved air supply to the cylinders
thus maintaining the torque at high RPM, without increasing the weight of the
engine. In addition, the fuel consumption remains around 20L/h. However, any
electrical failure (sensor, harness, ECU,…) causes the engine to stop as it is
considered as a “single-point-failure” installation.
