AVIATION
Artur Trendak
FLIGHT MANUAL
Description of the Gyrocopter and its Equipment
Chapter 7
Page 7-8
Document no.: TERCEL-AFM-001-EN
Edition 1
21 Aug 2014
Change no.:
7.9.2
Propeller
The Three-blade DUC FC-R Inconel propeller with a diameter of 1727 mm. For more
information see propeller manual.
7.10
Engine Oil
Traditional oils for aviation piston engines are not appropriate for Rotax engines! Due to the
heavy load on the transmission, motorcycle oils with additions for gearboxes are recommended.
Oils for heavy motorcycles 4-stroke engines meet all the requirements. Usually they are full-
synthetic oils. It is essential to use only oils with the API classification:
“SJ”, “SG” or “SL”.
Recommended oils are included in the Rotax engine manual.
Recommended oil: Castrol 10W50 4T Racing.
Do not apply oils from diesel engines!
A diagram of the oil system and information on oil replacement/replenishment are included
in the Aircraft Maintenance Manual.
The oil temperature optimal range for engine work is:
90 ºC ÷ 110 ºC.
If the oil temperature is not correct, it is possible to change the position of the oil cooler (see
the Aircraft Maintenance Manual).
NOTE:
Do not use re-refined oil.
7.11
Fuel System
A diagram of the fuel system is included in the Aircraft Maintenance Manual.
Two connected composite fuel tanks are located close to the centre of gravity of the empty
gyrocopter, so the quantity of fuel in the tanks does not significantly affect the behaviour of the
machine in flight.
The capacity of the tanks is 120 dm
3
. The tanks are located behind the seats. Fuel level is
easy to evaluate by scales attached to translucent walls. Additional fuel level gauge is located on
the instrument board.
It is essential to apply
lead-free
car petrol with the octane minimum number of 95,
recommended 98
.
NOTE:
Do not use AVGAS fuel.
Fuel consumption at a cross-country speed of V
C
= 130 km/h (70 kt) is about 29 dm
3
/h.
