15X6 and 15X4 for mag 91fs  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> 15X6 and 15X4 for mag 91fs
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15X6 and 15X4 for mag 91fs - 8/5/2005 12:57:30 PM   
bako


 

Posts: 105
Joined: 5/8/2004
From: tbilisi, GEORGIA
Status: offline 		is this joke? i had top flight 15X6 wood prop about 7 month ago. it had 4.4kg theust. of course i broke it then. after this i got few 15X4W apc props. static thrust is only 4kg. wh is it so? maby due to apc don't work well on 4stoke low rpm?
now i want to try zinger 15X5. anyone knows what reading will i get from it?
       Post #: 1

RE: 15X6 and 15X4 for mag 91fs - 8/5/2005 4:01:41 PM   
seanychen



Posts: 2914
Joined: 7/20/2002
From: Canton, MI, USA
Status: offline 		What were the RPM with the 15x6 Top Flite and 15x4W APC? I had another 4-stroke swinging APC 15x4W @ 10000 rpm yielding 10.5 lb. (4.7 kg) of measured thrust. Hmm, if the Top Flite 15x6 is that good, maybe I should give it a try.

_____________________________

E_Total = M*G*H + 1/2 M*V^2
When H=0, all of airplane's velocity becomes crash energy!

(in reply to bako)
       Post #: 2

RE: 15X6 and 15X4 for mag 91fs - 8/5/2005 10:21:44 PM   
bako


 

Posts: 105
Joined: 5/8/2004
From: tbilisi, GEORGIA
Status: offline 		i don't have tach

(in reply to seanychen)
       Post #: 3

RE: 15X6 and 15X4 for mag 91fs - 8/6/2005 5:31:08 AM   
Richard L.



Posts: 8775
Joined: 7/28/2002
From: Redmond, WA, USA
Status: offline 		When you order your fuel pump from Tower, you might want to order a tach also.

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(in reply to bako)
       Post #: 4

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