I took a photo of the no passengers allowed on the bridge sign...guess that's as close as it gets.
While I didn't ask about how the boat could be towed, we certainly were towed. Out from the berth, then whipped around mid-Thames for our journey commencement under the tower Bridge. Not sure if we were towed all the way under and then started up, or if the tug left us before then. Don't remember.
Here's an assortment of pictures from the day.
From top to bottom:
1. Even the lubricators on her steam engine have her name etched into them. Her engine is also 2100hp (correct me if I'm wrong but I think that's right UK paddlers?) Kind of blows the Alexander Arbuthnot out of the water.
2. Returning from Whitstable to Southend, decks full of passengers.
3. Stern rope command system, as it's winch operated. No manual pulling of big ropes.
4. Waverley on arrival at Southend Pier. Gorgeous weather.
5. In case you forgot which boat you're on the name is on the stair treads. I hope that detail is on your models.
6. This one's just for Rod, the pier train at Southend. Because it's the largest pleasure pier in the world at a mile and a third long. No one wants to walk that, £3.50 return gets you from one end to another.