Question Why was there not a watertight bulkhead labeled "I"

[Willow Sinclair]

Hello, I've been reading and doing research on the engines and how the power worked on the ship when I found a diagram of the watertight compartments and noticed that they are labeled A-P, excluding the letter "I". I was just curious why "I" was skipped over—is it a superstitious thing, or was it just left out due to how the letter looks visually, and it might have been confusing? I'll include the diagram below. Thanks for reading!

 

[Willow Sinclair]

Here is a low resolution image of the Harland and Wolff 400-01 (Olympic, Titanic) shell plating plan from which the segment I previously posted was taken.View attachment 114779

and thanks for this as well I'll be staring at this later with a magnifying glass

 

[Question_asker]

What would the confusion be in using "I"?

 

[Samuel Halpern]

What would the confusion be in using "I"?

My guess is that the letter "I" when handwritten can easily be confused with the number "1" when handwritten on diagrams.