Here is an application created for helping offshore seafarers operations. The app currently containing two tools included as;-ABS PSN: To calculate distance and bearing of an installation and a vessel. The tool currently working in 36-T UTM Coordinates only. Might be changed in the future as per users requestion.-Fanbeam Alongside Range: This tool is to calculate distance between the installation/fanbeam and the vessels aboard. Inputting range and bearing which is seen in the fanbeam screen would be enough.Both calculations & more are avaliable also as spreadsheet, the URL of that source is implemented inside the application.Always feel free to contact me on mail & linkedin for suggestions and improvements.