3D propeller
09-05-2005, 05:41 PM
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3D propeller
I have a Twister with a 72 Saito I put a APC 14x4 prob on it to do 3D I dont like the way the plane flys and engine sound...any sugestions on another prop I can use
09-05-2005, 05:47 PM
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RE: 3D propeller
I have a GreatPlanes SuperCuipmonk..I mounted a Saito 120 and it feels like not enough power for this Airplane,but this is the recemended engine for this plane ,,any suggestions
09-05-2005, 05:51 PM
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RE: 3D propeller
question one.... try at 13 x 4w....
question 2, which prop are you using? My buddie has this plane and has the 1.50 in there... very nice combo...it is a heavy plane
question 2, which prop are you using? My buddie has this plane and has the 1.50 in there... very nice combo...it is a heavy plane
09-06-2005, 08:37 AM
#5
RE: 3D propeller
Barnie,
A lot of a 3D set-up is how you like the feel of the plane and engine combination. You will probably have to try several propsto get it where you like it. The APC 14-4W is a heavy prop and probably won't rev up very fast. This may be the reason you don't like it, the slow response. For this reason, many people, but not all, tend to like a slightly smaller, higher revving prop for 3D. A 13-6 is always the normal standard prop for a .72 and that's what I tend to use. A 13-4W may sound like too small a prop for a .72, but since it is a wide blade, it is probably close in load to the 13-6. You also may end up with a wood prop that will spool up very fast.
I realize this isn't an exact answer, but plane set-up for 3D tends to be variable depending on the pilot's personal feel for flying.
Botton line, try:
13-6 APC
13-6 wood
13-5 wood
13-4W APC
A lot of a 3D set-up is how you like the feel of the plane and engine combination. You will probably have to try several propsto get it where you like it. The APC 14-4W is a heavy prop and probably won't rev up very fast. This may be the reason you don't like it, the slow response. For this reason, many people, but not all, tend to like a slightly smaller, higher revving prop for 3D. A 13-6 is always the normal standard prop for a .72 and that's what I tend to use. A 13-4W may sound like too small a prop for a .72, but since it is a wide blade, it is probably close in load to the 13-6. You also may end up with a wood prop that will spool up very fast.
I realize this isn't an exact answer, but plane set-up for 3D tends to be variable depending on the pilot's personal feel for flying.
Botton line, try:
13-6 APC
13-6 wood
13-5 wood
13-4W APC
09-14-2005, 09:13 PM
#6
RE: 3D propeller
I have a Twist with a Saito .72. Started using a 13 x 6 Master Airscrew prop. The plane flew great. I then tried a APC 13 x 4W. The plane did have a improvement with the APC, so I tested it by using a digital fish scale and tied one end to a post, the other end to the tail of the Twist. Here is what I recorded:
13 x 6 Master airscrew = 6.7lbs of thrust
13 x 4W APC = 7.5lbs of thrust.
I think you can guess what prop I am using
Larry
13 x 6 Master airscrew = 6.7lbs of thrust
13 x 4W APC = 7.5lbs of thrust.
I think you can guess what prop I am using
Larry
