Which exits on the 787 have single lane slide/liferafts?

Which exits on the 787 have single lane slide/liferafts?

• A. 2L/R and 4L/R
• B. 1L/R and 3L/R
• C. 2L and 4R
• D. 1L and 3R

Answer: (B)

Single-lane slides are used where the door opening and slide path can only support one evacuation lane, while dual-lane slides are added where more capacity is needed. On the 787, the front doors and the doors positioned as the third station on each side are equipped with single-lane slides, meaning each of those exits provides one clear path to the ground or water. The doors in the middle (and rear) are set up with dual-lane slides to increase evacuation capacity and accommodate liferafts if needed. So the exits with single-lane slides are the front pair and the third pair on both sides.

Single-lane slides are used where the door opening and slide path can only support one evacuation lane, while dual-lane slides are added where more capacity is needed. On the 787, the front doors and the doors positioned as the third station on each side are equipped with single-lane slides, meaning each of those exits provides one clear path to the ground or water. The doors in the middle (and rear) are set up with dual-lane slides to increase evacuation capacity and accommodate liferafts if needed. So the exits with single-lane slides are the front pair and the third pair on both sides.