REFLECTOR: Prop dia

[John Dibble]

I previously flew with 1" shorter blades (66" pitch) for more 
clearance.  I couldn't quite use full power and stay below 2600 rpm.  So 
I went back to the 68" pitch recommended by IVO.  Now I can easily get 
down to 2500 rpm at full power.  I think it would go lower, but haven't 
checked.  1" change in blade length makes a big difference.  IVO 
shortened blades for me once.  Seems like your 72" blades should work.  
Have you checked that the motor is working good?

John

On 6/6/2013 10:30 AM, Ron N VelocityXLFG wrote:
> Lower RPM at higher speed.  I have a email out to Ivo to see about 
> making the blades shorter . Have not heard back yet.
>  From past experience they are a little slow in response.
>
>
> Ron
> On 6/6/2013 8:10 AM, John Dibble wrote:
>> On 6/5/2013 4:13 PM, Ron N VelocityXLFG wrote:
>>> I have a 72 dia prop on my  XLFG I am going to try a 76 inch Dia Ivo 
>>> propeller  and  I am a little concerned with the clearance . Seems
>>> like I have plenty even with a high rotation angle. Is there any 
>>> other concerns or advice out there for this configuration.
>>>
>>> Ron
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>> If you do have ground contact, the blades are easily repairable or 
>> you can cut a little off the ends.  My 220 HP Franklin uses a 68" IVO 
>> prop.  76" seems like a lot.  What is the objective?
>>
>> John
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