Sun Shipbuilding built ships

Sun Hull #	MC Hull #	Original name	RN Name	Keel laid	Launched	Requisitioned	Delivered	Days on Ways	Days in Water	Total Days	Conversion yard and completed dste
184	46†	MORMACLAND	ARCHER	1-Aug-39	13-Dec-39	6-Mar-41	24-Apr-40 to owner	104	132	236	15-Nov-4 1(N)
186	59	RIO HUDSON	AVENGER	29-Nov-39	27-1Nov-40	20-May-41	31-Jul-41*	365	247	612	1-Mar-42 (B)
187	60	RIO PARANA	BITER	29-Dec-39	18-Dec-40	20-May-41	2-Sep-41*	357	259	616	1-May-42 (A)
188	61	RIO DE LA PLATA	CHARGER	19-Jan-40	1-Mar-41	20-May-41	2-Oct-41*	408	216	624	? (N)
189	62	RIO DE JANEIRO	DASHER	14-Mar-40	12- Apr-41	20-May-41	22-Nov-41*	395	225	620	1-Jul-42 (T)
The first ship was delivered and operated by her owner and subsequently requisitioned by the U.S. Maritime Commission for war service. The other four were requisitioned while fitting out. * Delivered 80% complete to the yard tasked with conversion to Auxiliary Aircraft Carrier. † Marine Commission C3 type hull, Rio class vessels all Marine Commission C3-& C type hull. Key: A = Atlantic Basin Iron Works. B = Bethlehem Steel Corp. N = Newport News Shipbuilding & Dry-dock Co. T = Tietjen and Lang Dry Dock Co.

Shape: Standard, circular.

Blazon (Heraldic description) On a blue field: A ram in the act of butting, proper.

------: One who assaults or assails an opponent. The butting Ram in the design is an illustration of this act. The original design suggested by the ship’s officers depicted a stylised seahorse, having the head and neck of a horse, the body and tail of a griffon with feathered wigs and two hind legs with talons. Volant, ready to dive. It also carried the unofficial motto “Oppugnare, vincere est” – "Attack to conquer”. A bronze cast of this design was made by her builder and was displayed on the quarterdeck until the official design was approved in 1943.

For explanations of heraldic terms see the Royal Navy Ship's Badges page.