With only five Seasprites, I see three being operational. Usually the RNZN deploys one frigate, but for short periods of time two frigates, leaving one Seasprite available for the MRV. When only one frigate is deployed, or when the MRV does not need her Seasprite, one Seasprite would be available for use by one OPV. Much alike the frigates, most of the time only one OPV would be deployed. There are other helicoptes which can be used at any time for use with the OPVs, not being a warship per say, the OPVs are more of a patrol force assett, one or two LUHs maybe available.
While helicopters do provide significant multiple advantages to the OPVs, the OPVs are capable of patrolling without a helicopter. The US Coast Guard's smaller medim endurance cutters don't necessarily operate a helicopter although they have a flight deck. With my experience, while helicopters are great at scouting, illegal fishing vessels stop only when a patrol ships guns are pointed at them from a nearby position.
Remember the Australian frigates chase of an illegal fishing vessel off Heard Island? Australian Orions were always in contact with the fishing vessel, but it didn't stop until a frigate chased it down. Presence of a ship is vital in fishery protection duties, OPVs and IPVs can be and are effective without helicopters. Inshore, other land based aircraft and helicopters can work with the patrol ships as well as a ship based helicopter.
In summary, I do not see a shortage of Seasprites. There are other aircraft and helicopter assets of the air force. The new LUHs will be as effective as Seasprites for the OPVs intended operations.
While helicopters do provide significant multiple advantages to the OPVs, the OPVs are capable of patrolling without a helicopter. The US Coast Guard's smaller medim endurance cutters don't necessarily operate a helicopter although they have a flight deck. With my experience, while helicopters are great at scouting, illegal fishing vessels stop only when a patrol ships guns are pointed at them from a nearby position.
Remember the Australian frigates chase of an illegal fishing vessel off Heard Island? Australian Orions were always in contact with the fishing vessel, but it didn't stop until a frigate chased it down. Presence of a ship is vital in fishery protection duties, OPVs and IPVs can be and are effective without helicopters. Inshore, other land based aircraft and helicopters can work with the patrol ships as well as a ship based helicopter.
In summary, I do not see a shortage of Seasprites. There are other aircraft and helicopter assets of the air force. The new LUHs will be as effective as Seasprites for the OPVs intended operations.