Raven's got it!
Raven Half System by Rob Halas
Referring Website: https://ravenaircraft.com
Do you like to perform basic aerobatics when you fly?
And are you getting tired of cleaning your oily airplane belly after doing these maneuvers ?
If you answered yes to the above there is a solution!
It is called the “Half Raven System” (as coined by someone on the Van’s AirForce Forum).
But wait, there’s more! You will save money by keeping the oil in the engine, where it belongs anyway.
The half system is simply the breather portion of the full inverted system.
Installing the Raven aerobatic air/oil separator reduces oil loss considerably over standard systems, and installation is a straightforward process. We have designed a smaller separator for aircraft, such as the RV series, because of space limitations due to their tight cowlings.
To start, you will need to choose a location for the separator. It needs to be mounted as high and as far off to one side as possible. The chosen side may depend on the sump, as it requires an available port that is on the opposite side of the engine from the tank. The unit can be mounted to the firewall or the engine mount.
To install it on the engine mount you will need to use Adel clamps and may have to fabricate an aluminum bracket. After this is done, install the sump return fitting, and then install the hose, making sure to have as gentle a curve as possible, with no tight bends. (This ensures rapid return of any oil collected in the system after the aircraft returns to upright level flight).
Next, install the breather hose from the engine to the top port of the separator. The last step is, to install the overboard breather line; . this This line exits the side of the separator and can be plumbed into the exhaust as an alternative to exiting the bottom of the cowl.
For more detailed installation instructions please visit our website or email us at:
Contact email: [email protected]
Now go out and have fun!
Notes: Installing the half system will markedly reduce oil loss overboard during basic maneuvers manoeuvres, thus giving you more free time to do more interesting things like pig wrestling. Keep in mind this has nothing to do with the oil pressure portion of the engine. If you do find yourself getting addicted to aerobatics and wanting to do more sustained inverted flight, the oil valve and components can always be installed later…
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