[Rhodes22-list] miles per gallon

[KUHN, LELAND]

Alan,

Pretty accurate.  I think the 20' waterline gives our boats a
theoretical hullspeed of 5.99 knots.  I don't know if salt water helps,
but my 9.9 Mercury outboard can easily get the boat planing at over 6.5
knots if the chop isn't too bad.

I typically don't motor any faster than 5 knots just because of the
noise.

Lee

-----Original Message-----
From: Alan Robertson [mailto:bigal_61 at msn.com] 
Sent: Sunday, May 04, 2008 5:29 PM
To: The Rhodes 22 mail list
Subject: Re: [Rhodes22-list] miles per gallon

A lot depends on your speed. Since the Rhodes is a displacement hull, if
you figure 21 feet at the waterline(really closer to 20') it can't go
any faster than 5.7 knots which translates to around 6.5 MPH. I get
about 4.5 -5 miles per gallon on my 10 year old Johnson 9.9 by getting
boat up to maximum speed under full throttle and then backing off on the
throttle little by little until I can just maintain maximum speed with
minimum throttle.
Without bucking waves or a strong headwind I get a maximum of 5 miles of
linear distance per gallon. I assume your Yamaha is a 2 stroke engine;
you get better mileage on a 4 stroke with the same rated horsepower.

I'd be curious as to what some of you salt water sailors get in tidal
waters.
Happy cruising!
Al Robertson

From: cowie<mailto:ccowie at cowieassociates.com> 
  To: rhodes22-list at rhodes22.org<mailto:rhodes22-list at rhodes22.org> 
  Sent: Friday, May 02, 2008 9:59 PM
  Subject: [Rhodes22-list] miles per gallon



  Does anyone know about how many miles per gallon the Rhodes 22 will
get with
  a Yamaha 9.9?


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