Spent a lovely 6 months based at Pelikowa (Sth Manus) in 1974.
The HF was soooo bad that every afternoon I needed to climb to 20k in the B206 to cancel SAR with Mandang on VHF.
I never ever noticed the mechanic putting a slab in the boot - but it sure tasted nice when chilled off.
Oh, 18 minutes up, 5 down