[Rhodes22-list] Gallons per hour

[Rick Lange]

Stephen,

You're mixing apples with oranges, pears, etc.

An old 2 stroke 9.9hp is way oversized for most conditions of the R22, yet
when you need the muscle it is there.  So it will maintain a minimum fuel
flow for lubrication and never reach full RPM.

Very dirty but completely reliable throughout 20 years.

Regards,

Rick


On Sat, Aug 25, 2018 at 12:11 PM Stephen Staum <snstaum at gmail.com> wrote:

> Rick,
>
> I don’t understand. My 4 HP 2 stroke had a quart tank on the outboard. It
> would run 2 hours @ 4.5 knots & 1 hour @ 5.5 knots. Since consumption has a
> direct relationship to power output in any engine I don’t get how your 2
> stroke consumes the same at all power settings. When flying I owned
> aircraft with 108, 150 & 180 HP. They consumed 6, 8 & 10 gallons per hour
> respectively  @ 70% cruise power.  Sorry Chris, I don’t know the formula
> for computing consumption vs HP but the you can probably come up with one
> from the above #’s.
>
> Stephen Staum
> s/v Carol Lee 2
> Needham, MA
>