Strasburg- Only One Running Engine?

I was vacationing out in Strasburg last week. Each morning I'd go to the railroad to take some pics and see what they were doing for the day. They had 475 steamed up but 89 was in the shop with her tubes removed. I saw tenders for 90 and 31 in the yard but no locomotives. Also saw they only had trains on the hourly schedule and not the 1/2 hour schedule. Is 475 only steamer running? Any idea when any of the others will be back running? I was disappointed. I have so many shots of 475 but not many of 89 or 90.

Which days were you there? Their timetable calls for hourly trains on weekdays.

They used to run two trains a half hour apart. They'd meet at the picnic grove.

On Wed. and Thurs. 8/5 and 8/6, when I was there, they were running one train at a time with #89. #90 was in the shop.

John