C-150 for photos?

Hi all... wondering if there is anyone out there that could suggest the
best way to remove the passenger window to take photos...

I know about unscrewing the retainer from the window... but just wanted to
know if there are any points to watch out for .. best speed etc...

The plane is not mine..and the flight school wouldn't be too thrilled if

a)I told them what I was planning to do
b) came back with a broken or REALLY scratched side window

Thanks to all,

)


Simon