Propellors on DC6/7, Stratocruiser, Constellation & Britannia
( This thread also appears under TechLog my appollogies for repetition I'm not sure which heading is best)
On topics about the DC6, DC7 and Constellations & Stratocruisers mention is often made of the props used on the Wright and P&W engines as being either Curtiss Electric (CE) or Hamilton Standard (HS).
I have had a long standing query as to why some aircraft like the B377 used square tipped props on some a/c while other Strats (even owned by same operator such as BOAC) used rounded tips? Same goes for the DC6 and DC7s. Is it possible to visually tell apart a CE vs. HS propellor?
I have also noticed on a few Britannia pics that some a/c have rounded tip props and others square tipped and even seen mixed square/round props on same a/c. These were presumably Rotol?
I know prop hub spinners were optional kit so this easily explains this difference.