World Power Technologies' Whisper H40                                Installed near Bismarck, ND 

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2002 Service History 

Cost 

Days

Off 

Days

Up 

Days

Down 

Labor

Hours 

Driving

Hours 

Miles

Driven 

04/20/2002 

Machine is doing fine. 

  

  

  

  

  

  

  

05/05/2002 

Spring maintenance check.  Everything looks okay.

To attempt to reduce the whistle in low wind speeds,

I modified the airfoils. 

  

2 hrs 

  

  

2 hrs 

  

  

05/11/2002 

Lowered the tower to continue the airfoil alteration.

Whistle appears to be gone. 

  

1 hr 

  

  

  

  

  

10/20/2002 

Removed from service to put on my brother's site. 

  

  

  

  

2 hrs 

  

  

11/02/2002 

Put back in service on my brother's site. 

  

13 

  

  

2 hrs 

  

  

  

  

  

  

  

  

  

  

  

2002 

Grand Totals: 

  

13 

352 



Copyright © 2004 Michael A. Klemen                                                Site Table of Contents