Briefly, the circumstances were as follows: my route was from Blackbushe to Cranfield via Westcott and Woburn.
Were you using the WCO NDB? Or was it just coincidentally on your route?
I didn't know that NDBs could be used for Navigation exercises during training (I wish I could have used them in mine!) is it something that is up to the instructor?
I mistook Duxford for Cambridge on one of my navexs. It was only the fact that I didn't think Cambridge had a concorde there that woke me up and prevented me from becaming a laughing stock
...although some would say that I am a laughing stock!