According to their FB page, it will be going to replace chair 3, which is the beginner chair. That is the shortest chair they have, so there will be plenty of spare parts left.
They are also replacing the chairs on chair 5 with ones that have foot rests. If my math is right and the Windham F lift is 1500 vertical, there should be enough chairs to replace the ones on chair 5 and replace chair 3 all together and still have some backup parts for their other lifts and have a slew of old triple and double chairs to sell to the public. Snoloco may want to double check my math on this though.
They are saying the replacement of chair 3 will be next summer. The replacement of the chairs on chair 5 will take place before this upcoming season.
This is all just my take of it based on what I read on their Facebook page.
What you’re suggesting makes sense, as I can’t imagine the $1M in upgrades they planned for this summer could include snow making upgrades, new snow cats, and new chairs for lift 5. I don’t recall the last decade I rode the F chair at Windham, given that the HSQ parallels it, but if that chair has footrests, you’ve likely hit the nail on the head.
I just hope the lift is in good shape, as it has to be at least 30+ years old. Windham does tend to take care of their lifts, so this may have been a really good purchase for GP.