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Old Aug 07, 2008, 10:22 AM
Ched is offline
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Shawnee, Kansas
Joined Oct 2005
598 Posts
Quote:
Originally Posted by diamondd7711
What size prop do you think would be a good replacement for the Vapor? The stock prop and spinner is 1.1g and the prop itself is .9g. The stock size is 140mm X 45mm. These are some carbon fiber props I've found:

Prop Description:
Maximum Diameter: 101 mm (4.0")
Prop Gradient: 68 mm (2.7")
Weight: 0.30 g
Hole Diameter: 1.0 mm
Maximum Thrust: 40 g

Prop Description:
Maximum Diameter: 127 mm (5.0")
Prop Gradient: 76 mm (3.0")
Weight: 0.35 g
Hole Diameter: 1.0 mm
Maximum Thrust: 25 g

Prop Description:
Maximum Diameter: 127 mm (5.0")
Prop Gradient: 89 mm (3.5")
Weight: 0.35 g
Hole Diameter: 1.0 mm
Maximum Thrust: 25 g

Prop Description:
Maximum Diameter: 140 mm (5.5")
Prop Gradient: 76 mm (3")
Weight: 0.6 g
Hole Diameter: 1.0 mm
Maximum Thrust: 40 g

So, even using the 140mm prop I could save .3g. But I was thinking of going smaller, maybe the 101x68 or the 127x76. The stock prop has a very low gradient, so I think a smaller prop with a higher gradient would give about the same thrust? Is that right?
The last one sounds good to me. I have been trying to figure it out too. The props are expensive and I don't want to buy one that doesn't work as well as the stock one. I hope you figure it out for us.
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