REFLECTOR: Best Speed for MPG

[Ron N VelocityXLFG]

I have read  that some where also and the argument makes sense that the 
engine is nothing more than a air
pump. So you do not want to restrict it. Though it seems there should 
also be a sweet spot where the
aerodynamic is more important that the throttle position.

On 8/14/2013 7:59 AM, Brian Michalk wrote:
> The engine runs most efficiently at wide open throttle and low RPM.
>
> If you can regulate power with altitude, fly high at WOT.
>
> On 08/14/2013 07:51 AM, Ron N VelocityXLFG wrote:
>> I was wondering what the best speed per gallon of gas  has been in 
>> the velocity.
>> I have been doing some  work on this lately . Now my plane having a 
>> alternative
>> motor and a fixed pitch prop will likely not be the same as other 
>> installations but
>> with that said I still would like to know what Speed other velocity 
>> pilots are
>> finding for the best fuel mileage  has been.  I feel most comfortable 
>> at 145 knots
>> seems to be the sweet spot for me so far but that is also my comfort 
>> zone for the engine
>> rpm on my fixed pitch propeller. Now this is only about Half throttle 
>> for me wide
>> open I get 175 knots Or should I say 201 MPH  but I am sure my 
>> mileage will go way down at the speed.
>>
>>
>> So far for me with only a few cross country's under my belt
>> Velocity XLFG LT1
>> Prop RPM 2500 Prop tip speed 535 mph
>> Prop Dia 72"
>> At 4500 alt
>> 2600 gross Weight
>> Speed of 143 knots
>> 280 mile round  trip
>>
>> I got 12 gallons an hour
>> fuel burn
>>
>> Ron
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