|
| If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|||||||
|
|
Thread Tools | Display Modes |
|
#4
March 29th 06, 08:13 AM
posted to rec.aviation.homebuilt
|
|||
|
|||
Propellers
"Philippe Vessaire" wrote A square wood beam, aera= a*a diam=15*a You find the power with this formula: P=0.0532 * (diam/450)^5 * (rpm/1000)^3 with diam in mm rpm in revolution / mn or diam=((P/0.0532) * 10^9 * 450^5 / rpm^3 ))^0.2 a=diam/15 I you want check 180hp @ 3800rpm diam = 1026mm a = 68.4mm Is the area in the formula the cross sectional area, side of the beam area, surface area, or what? More information is needed, please. -- Jim in NC 
|
| Thread Tools | |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Counter rotating propellers | Raoul | Military Aviation | 24 | September 21st 04 05:59 AM |
| New Company selling Airplane Propellers for Experimental, Display and Air | Plane Pieces Inc | Owning | 8 | September 18th 04 05:02 PM |
| Aero Composites Propellers | Badwater Bill | Home Built | 26 | June 18th 04 05:30 AM |
| Missing propellers | Benny | Simulators | 1 | March 18th 04 07:18 PM |
Threaded Mode