R-29 real fuel econemy and range on plane

[serpa4]

I'm looking at the Ranger and CW line of boats. We sort of like the R-29 over the C30.
I don't think they have the same hull.
However, for Bahama island hopping over a week or two,don't think the R-29 can get me there quickly, say 18-20 kts sustained speed.
Anyone with "real world" numbers on fuel economy or range of the R-29 "on plane"? We'd be fully loaded with water, extran ingle fridge, anchors, tools, etc.
Once there, I'd slow down, but don't want 10 hour passages at 8-10kts.

C-30: 180 gallons fuel, 435 hp, 10,200 lbs.
R-29: 145 gallons fuel, 320 hp, 10,800 lbs.

 

[misinger]

The 370-hp Volvo Penta D6 started quickly, without even a hint of smoke. Idle was 600 revs, and we made 3.5 knots and burned 0.4 gallons per hour (GPH). Our noise meter read 74 dB, just slightly above normal conversation. At a cruise of 2,500 RPM, our speed was 15.5 knots while burning 10 GPH. Wide-open throttle was 3,400 revs, and we stepped along at 26.3 knots while burning 20 GPH.


https://quimbyscruisingguide.com/review-cutwater-30/


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[misinger]

At 2500 rpm we moved along at 9.7 knots and burned 4.7 gallons per hour. At 3000 rpm our speed was 14 knots, and fuel burn was 7.3 gallons per hour. At the engine's continuous rating, 3600 rpm, we scooted along at 18 knots burning 9.8 gallons per hour.
At wide-open throttle — 4000 rpm — we topped out at 22.5 knots and were burning 12.7 gallons per hour. All test speeds were GPS generated.


https://www.rangertugs.com/Userfiles/RT ... ugsR29.pdf


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[BradOwens]

The above referenced R29 test was for the classic style R29 which I believe went out of production in 2015. The new R29 would probably have different numbers, but I think would still get you there at a reasonable speed.

 

[pleeson]

If you make a habit out of trying to go places quickly you should look at the new Cutwater outboards. Their hull is faster to start with and with the ability to trim the motor they would take advantage of all the benefits of that hull and hold planing efficiency over a wider range of speeds. Reliability and fuel economy is on par with diesels these days especially if you are running at higher RPM's. The diesels suffer for their shaft angle which the trim tabs don't resolve efficiently.

 

[BB marine]

gallery2.php?g2_itemId=67664

This is from a Ranger Tug owner. Real numbers of a 29CB Ranger. The boat was light, one passenger. Load the R29 with provisions, gear, include some current, wind and waves. Good luck cruising at 18 to 20 KTS.

 

[serpa4]

http://www.tugnuts.com/gallery2.php?g2_itemId=67664

This is from a Ranger Tug owner. Real numbers of a 29CB Ranger. The boat was light, one passenger. Load the R29 with provisions, gear, include some current, wind and waves. Good luck cruising at 18 to 20 KTS.

Nice, thanks!