Ultimate Jets
- Diamond assembly manual - Revision 4 - 01/01/2015
28
Engine installation:
Adjust the position of the engine / beginning of the exhaust tube so that the engine exhaust enters the
bellmouth for a maximum of 25 mm.
Install the Ultimate Jets carbon bypass system. This bypass is designed to optimize top speed and reduce
the venturi effect. If the engine is installed too far aft inside the bellhousing, this will increase the venturi
effect dramatically and could vacuum the fuselage as well as create engine stall conditions in certain
regimes.
Our bypass system is designed to avoid buildup and propagation of the vacuum inside the fuselage. Once
installed, you will notice that it does not use the orange bellhousing. This is done on purpose.
Once installed, please cut the vent holes at the bottom of the engine bay as per Aviation Design
recommendation.
Use the template below;
