Official charts and aerodrome information can be found in the UK AIP.
Weight & Balance Sheets
Navigation & Planning
General Aviation Reports (GARs)
A UK GAR must be completed before a flight from Northern Ireland to anywhere else in the United Kingdom or from anywhere into Northern Ireland. UK GARs can be completed online at https://www.submit-general-aviation-report.service.gov.uk/welcome/index.
For flights to the Republic of Ireland an Irish GAR form must be completed and sent to Irish Tax and Customs. Details are available on the Flying In Ireland website (look for “Irish customs form”).