...Some recent performance figures in glassy conditions, which from other trip stats, counteracted the reduced crew weight anyway as she was sticking to the glassy calm water a bit
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These figures were with just me on board, only 15 hrs up on the donks, ~250L fuel & ~120L water, ~ 125kg gear. On other days with 4 or 5 adults and a lot more weight/liquids, the figures at 25 – 30kn don’t change much from below even in 15-20kn Moreton Bay conditions – at least from what I have seen anyway.
All the readings below were from the gauges except for the last column [km/h], which I calculated as I didn’t write them down. Fuel data is the combined Total for BOTH donks.
rpm, kn, L/nm, km/L, L/h, [km/h calculated]
3000, 15, 1.8, 1.0, 26.4, [28]
3200, 18, 1.5, 1.2, 28.6, [33]
3400, 20, 1.5, 1.2, 31.2, [37]
3600, 22, 1.5, 1.2, 33.8, [41]
3800, 24, 1.6, 1.1, 38.6, [44]
4000, 25, 1.6, 1.1, 42.8, [46]
4200, 26, 1.8, 1.0, 47.2, [48]
4400, 27, 1.8, 1.0, 49.0, [50]
4600, 29, 1.8, 1.0, 54.7, [54]
4800, 31/2, 1.8/1.9, 1.0, 60.4, [57]
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