logo
Thread Tools
Old 04-11-2012, 05:27 PM
jmcmike is offline
Find More Posts by jmcmike
Registered User
Carefree,AZ
Joined Feb 2009
96 Posts
Discussion
3 blade da 100l

Picked up a 35% dalton with a da100l, cans and mejzlik 25x12s 3 blade. Was wondering if a 26x12n 3 blade would give me a little less load on the engine, plane is on the heavy side.

Thanks guys!
jmcmike is offline Find More Posts by jmcmike
Reply With Quote
Sign up now
to remove ads between posts
Old 04-11-2012, 05:32 PM
Pistolera is offline
Find More Posts by Pistolera
Suspended Account
Joined Apr 2006
4,242 Posts
I'm guessing it would load even more. I ran the 25x12s on my DA120 for awhile. Nice prop on either with a 28# plane.

Earle
Pistolera is offline Find More Posts by Pistolera
Reply With Quote  (Disabled)
Old 04-11-2012, 05:46 PM
jmcmike is offline
Find More Posts by jmcmike
Registered User
Carefree,AZ
Joined Feb 2009
96 Posts
I read this in an earlier thread PE Reivers said but there was not much more on it.
I think not that many people have used both props in comparison.
My preliminary guess is that the S prop puts a 30% larger load than the N-prop.
putting your numbers in my calculator, running both props at 7000 rpm I get 14 hp for the 26x12N and 15.5 hp for the 25x12S.
adjusting for hp, I can see that the 26x12N pulls harder all the way form static to top speed, due to it's larger diameter.
I would need mass distribution data to predict spool-up between the two, but methinks the 26x12 wins.
jmcmike is offline Find More Posts by jmcmike
Last edited by jmcmike; 04-11-2012 at 06:01 PM. Reason: Reivers
Reply With Quote



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools