what to do during

what is crash Manoeuvring and what is double ring astern
what is breaking air
when to use breaking air
why cant we use
The crash manoeuvring is usually done to avoid any type of grounding collision or crashing of ship to any other ship or structure

[@farhantariq705]

Em'cy stop / crash stop / crash astern are these different or same things , please clear this sir .

[@DeepakKumar-gb4fv]

Sir if that is used for commuication then what's the use of walki talki

[@BasicMarineEngineering]

There is no guarantee of radio range in ecr not reliable at all

[@maharlikan958]

Walky talkie is used in docking and undocking. Command or instructions comes from bridge to forward or aft via handheld radio.