Question 22

The Correct Answer is A. **Explanation for Option A (Correct):** The Rottmer-type releasing gear is a well-known example of an **"On-Load" release system** used on lifeboats. The defining characteristic of an on-load release mechanism (like the Rottmer gear, when the safety pin/interlock is removed or overridden) is that it is designed to release the lifeboat from the davits, releasing **both the forward and after falls simultaneously**, regardless of whether the boat is waterborne (off-load) or still suspended (on-load). Turning the releasing lever on this type of gear activates the hooks to release immediately, which allows for rapid deployment but carries the risk of a high drop if the boat is released before touching the water. **Explanation of Incorrect Options:** * **B) both falls at the same time only if the boat is waterborne:** This describes an **"Off-Load"** release mechanism (or a system with an effective hydrostatic interlock). Rottmer gear, when operated via the lever, is designed to release the load even when suspended (on-load), contradicting this condition. * **C) the painter:** The painter (the rope securing the bow of the lifeboat to the ship) is normally released separately, often manually, and is not connected to or released by the main hook releasing lever system (Rottmer gear). * **D) the after boat fall only if the boat is waterborne:** The gear is designed to release **both** falls simultaneously to prevent the boat from swinging violently and capsizing. Releasing only one fall (whether waterborne or not) would likely lead to a catastrophic failure or capsize, and this is not how simultaneous release systems operate.