Please use the following Google Map link as it will take you exactly to the meeting point 

https://goo.gl/maps/6e5XtjWTcXvqtpQa9

Or..

To find the meeting point for off road lessons using the What3words App use the following

///recipient.improvise.radically

If you use what three words app it’s best to get it to direct you by Google Maps or Waze for accuracy

Turweston Aerodrome
Biddlesden Road
Westbury
Brackley
NN13 5YD

Click for Google Map