how fast can an a stock realy go?

don't know for sure - but from Northwood down to Pinner on the fast i've seen them "off the clock" , if you know what i mean , and also from Willlesden to Neasden. As far as on the flat is concerned , i've only seen about 50 mph , but that is between stations - so you don't really get a chance for them to really get going.

Hasn't this been discussed many many times before on this forum? The search function is always good, as is the spell check!

The driver of the Uxbridge Centenarian 38ts tour back in 2004, told me that around 20 years ago, they did a proformance test on the A stock, and put lots of lead inside. Any way he got the train up to 90mph on the down grade from the Chilterns down into London.

At steam on the met 1999, there were different stocks on display at ricky sidings. The driver in the A stock train (He was quite old and must have been close to retirement) said that when the stock was new, he got one up to a ton between Willlesden and Neasden.

The A stock are now limited to 50mph due to the condition of track/infrastructure, ride quality, and the fact that they are now very close to 50 years old.
So once again see below ;D

Where? I thought the line speed was 60 throughout, even on the short segment between Amersham and Mantles Wood.

Southbound fast from Moor Park.

As mentioned before, numerous times, we tried to get up to 70 on the D Stock tour, 21st September 1980, northbound fast with the advantage of non-stopping! I believe that the speedo suggested that it had been achieved.

mysite.wanadoo-members.co.uk/LUArchive/html/d78_metroliner_tour.html

For the worse, so it seems