Originally Posted by Todd_Frownfelter
My son is the same height also though.


The headroom is not as important as the hip room when you have two big people in a 150. Without an actual 150 for you to sit in, try this: find two small office chairs as shown in the attachment, put them side-by-side with no gap between the seats. You and your buddy sit in the chairs and see how it feels. Can you move your arms to work the (imaginary) controls without elbowing each other? Can you sit like that for 1-2 hrs or however long your typical flight is?

Attachments
office_chair.jpg


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