When flying through the KINGS 4 transition layer, what are the eastbound and westbound transition altitudes?

When flying through the KINGS 4 transition layer, what are the eastbound and westbound transition altitudes?

• A. 14,200' MSL east; 14,700' MSL west
• B. 14,500' MSL east; 14,000' MSL west
• C. 15,000' MSL east; 14,500' MSL west
• D. 14,700' MSL east; 14,200' MSL west

Answer: (D)

In this transition, the base of the transition layer is directional. The KINGS 4 transition provides different starting altitudes for entering the transition depending on the direction you’re flying. Eastbound, you’re in the transition above 14,700 feet MSL, while westbound the transition base is 14,200 feet MSL. This published difference helps align the transition with the surrounding enroute structure and terrain to maintain safe obstacle clearance and proper separation. So the correct values are 14,700' MSL for eastbound and 14,200' MSL for westbound.

In this transition, the base of the transition layer is directional. The KINGS 4 transition provides different starting altitudes for entering the transition depending on the direction you’re flying. Eastbound, you’re in the transition above 14,700 feet MSL, while westbound the transition base is 14,200 feet MSL. This published difference helps align the transition with the surrounding enroute structure and terrain to maintain safe obstacle clearance and proper separation. So the correct values are 14,700' MSL for eastbound and 14,200' MSL for westbound.