good book on networking techniques
Vis a vis making contacts, (it's not what youknow it's who you know), an EXCELLENT non-mainstream employment book is What Color Is Your Parachute, by Nelson Bolles.
Published annually, focussed on the USA job market (but the techniques are applicable to the human race), it can be had used in USA for $10 (new $22?), paperback, 600? pages.
The how-to-choose-a-field chapter(s) may be irrelevant for a heli pilot, but the how-to-network-your-way-in-to-the-boss chapters are golden, and exist nowhere else. Forget resumes, worm your way in with the pilots/crew & create yourself a job.
Also should be on the bookshelf in case you lose medical and have to re-sort your skills and priorities.