When IFR, pilots must be able to follow IFR procedures based on current charts and navigational data.
飞行员按仪表飞行规则飞行时，必须根据当前生效的航图及导航数据进行仪表飞行。
—— VATSIM 行为守则 Code of Conduct B14
When IFR, pilots must be able to follow IFR procedures based on current charts and navigational data.
飞行员按仪表飞行规则飞行时，必须根据当前生效的航图及导航数据进行仪表飞行。
—— VATSIM 行为守则 Code of Conduct B14