How to add a new ship design to a faction?

Say I want to add a new Terran frigate (in addition to the existing one) and have it use its own ship blueprint?  Will the following work? and if so what name will show up in ship designer

>> in  ShipClassDeffs   add

<ShipClass>

    <InternalName>TerranFrigateNEW</InternalName>

    <DisplayName>TerranFrigate_Class_Name</DisplayName>

    <Description>TerranFrigate_Dec</Description>

    <ThumbnailOverride>Terran_Frigate_02T.PNG</ThumbnailOverride>

    <ShipHullType>Medium</ShipHullType>

    <ShipRule>FavorKinetic</ShipRule>

    <ShipDesign>Terran_Frigate_02T</ShipDesign>

    <AIShipClass>Assault</AIShipClass>

    <StrategicIcon>Frigate</StrategicIcon>

    <BlueprintDef>FrigateBlueprintNEW</BlueprintDef>

>> add in: FactionShipStyleSetDefs.xml

<ShipClass> TerranFrigateNEW </ShipClass>