Why Did the Franklin Expedition Go Down to King William Island Instead of Sail Straight West?

Looking at Google Earth this path seems much more direct. Why did they not go this way?

https://preview.redd.it/z2ldnpz9ox0e1.png?width=987&format=png&auto=webp&s=a12e039a90b5415e5b1046d73fb01b5d810657f5

Edit: Wow Trump's election has reddit in a piss poor mood doesn't it? I think this is a fair question and some of yall are acting like Im an idiot for asking. No shit Franklin didnt have Google Earth.

Thanks to those of you who gave me real answers