Evolution of the Quicksilver racing lower unit

[Mark75H]

Originally Carl Kiekhaefer actually believed in box stock racing without special racing lower units .... until he saw this at the 1949 New York boat show ...

[Mark75H]

Before Carl could do anything about it this was coming out, too:

[Mark75H]

Here is the official announcement from Mercury

[Mark75H]

If you read closely you will see that part #M-50-1247 is for use with regular mid sections on A's and B's and #M-50-1249 is for use with regular D mid sections; both 3 inches longer than the shorter special new mid sections announced with the Quickies

[Mark75H]

Here's one of the original Quickie ads

[Mark75H]

Does that skeg look short in the bottom middle picture?

Well, they were. This picture compares the first year type "Q" Quickie with an "H" Quickie. The more common second generation "Q" Quickie is in between these.