Schedule Restriction Based on Aircraft
This is also an implicit restriction, similar in concept to the previous tutorial.
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<b>Example</b>: You want to restrict your pilots from creating schedules for
any <b>B350</b> aircraft unless they're current on the Night Cross-Country custom currency.
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Setup:
<ul>
	<li>Edit the applicable custom currency definition and add the exact text
		<code>[sch_restrict][restrict_model=B350]</code> to the Description field.</li>
</ul>

Operation:
<ul>
	<li>As with restricting by route, there is no new "Operational Parameters" section
		on the Schedule Entry screen.</li>
	<li>Instead, before saving the schedule entry, the system will check the
		aircraft type, based on the aircraft definition for the tail number.
		If the aircraft is a B350 and the
		Night Cross-Country currency is not met, the save is disallowed.</li>
	<li>Note that administrators can still schedule pilots as desired.</li>
</ul>