3 and 4 bladed Prop options
#1
Thread Starter

My Feedback: (41)
Recently I've started to experiment with both 3 blade and 4 blade props.
The setup that seems to work best on my Smaragd with a YS 140DZ is the APC 15x11 4 blade. It seems nice and slow while allowing plenty of power.
I'm also trying different props on a Temptation with an OS 1.60. I havn't quite decided on this setup yet and will soon try a Dave Lockhardt 15.75 X 12 repitched 3 blade.
I would be interested in hearing who is using these props and what type of results your getting with them.
Another aspect of the 4 blade on my Smaragd 140DZ is setting up a good cruise speed with my throttle curve. Does anyone have a firm RPM # that they look for in a cruise speed?
So far the experiment has yielded a plane that I think is easier to fly then what I was getting out of any 2 blade I had tried. Thanks, Mike
The setup that seems to work best on my Smaragd with a YS 140DZ is the APC 15x11 4 blade. It seems nice and slow while allowing plenty of power.
I'm also trying different props on a Temptation with an OS 1.60. I havn't quite decided on this setup yet and will soon try a Dave Lockhardt 15.75 X 12 repitched 3 blade.
I would be interested in hearing who is using these props and what type of results your getting with them.
Another aspect of the 4 blade on my Smaragd 140DZ is setting up a good cruise speed with my throttle curve. Does anyone have a firm RPM # that they look for in a cruise speed?
So far the experiment has yielded a plane that I think is easier to fly then what I was getting out of any 2 blade I had tried. Thanks, Mike
#2

My Feedback: (16)
Joined: Jul 2002
Posts: 574
Likes: 0
Received 0 Likes
on
0 Posts
From: tulsa,
OK
Mike I have ran the 15.5x12 4 blade on the 1.60DZ and it definatly eases the workload. I had flown the 15x11 4 blade on a piped Webra 1.45 with the same result, a mufflered Webra wouldnt handle this prop.
Im interested in the Mejlik 16x11 3 blade and would like to here if anyone has ran this on a 1.60DZ.
I found this progam called thrust that is interesting to play with different props and RPMs, http://www.bmaps.net/software/goodies.html.
Im not sure how close it relates to real world but its an interesting progam.
Im interested in the Mejlik 16x11 3 blade and would like to here if anyone has ran this on a 1.60DZ.
I found this progam called thrust that is interesting to play with different props and RPMs, http://www.bmaps.net/software/goodies.html.
Im not sure how close it relates to real world but its an interesting progam.



