I'll soon be taking a trip up the Thames from Brentford to Oxford on a 70' narrowboat. The boat currently has no anchor so I need to establish exactly what I need in terms of anchor weight, size and length of chain and warp length.
I've been in touch with an anchor supplier to ask this question after providing the same info and they suggested the following options:
20kg Brittany anchor, 10m of 8mm chain and 20m warp
or
16kg Brittany anchor, 9m 10mm chain and 20m warp
Both options weigh a total of around 35kg although I'm erring towards option 2 as a 16kg anchor might be easier to pick up and manoeuvre overboard than the 20kg version.
The supplier did suggest I got a second opinion hence this post but all thoughts welcome!