30th March 1973.

Ian Anderson wrote on the Free Radio Forum:
“At the time (I was working on RNI) the chart was supposedly complied by the on-board team sitting around the usual port side mess table. However, in effect, it was compiled by the team leaders, either Don Allen or Brian McKenzie, guided by the latest Record Mirror chart which, by the time that arrived on board, was for record sales from up to three weeks previously. A Gilbert O'Sullivan new entry at 18 at the end of March 1973 had already been in the UK top 10 for a couple of weeks. Equally there was some Radio London type predictions, eg Roxy Music already in the RNI top 10 for two weeks while it took another three weeks for it to get to 10 in the Record Mirror charts. There was always a personal favourite or two, which usually got nowhere, with the same going for the hit-picks.”
 
The links from the songs on this page lead to the Amazon MP3 Store where you can hear short audio clips of the tracks and customers in the UK can buy downloads. Please see this note.
 
There are a number of other offshore charts listed on The Pirate Radio Hall of Fame. Full details here.
 
The most recent previous RNI chart we have is from 22nd December 1972. The next is from 22nd June 1973.