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Volantex Ranger 600 - less power after changing propeller


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Hi everyone - I'm new to the hobby, been flying a DJI Mini for a while but I wanted to try real flying instead lol, so I got a Volantex Ranger 600 to start off with. It's a great beginner plane, I've been having a lot of fun and have already identified what airplane I want to move to next 

 

The problem is that I finally had my first minor crash - a dog ran into me while I was coming in to land and it ended up being a rough landing with a bit of a cartwheel. No damage to the airplane at all, but the stock propeller popped off and landed somewhere in the grass. Looked and looked, couldn't find it, but the plane came with two spares, so no problem, right? I installed the spare and got up and flying but I noticed I have less thrust now than I did before. I could easily loop the plane before, but can barely make one now - takeoffs are noticeably slower as well. 

 

I tried the second spare propeller and got the same result. Any ideas on what I might be dealing with, and how to correct it? I'll be moving up to a bigger and better airplane, but have a few more pennies to save first, and I want to keep enjoying this one in the meantime. Thanks in advance!

Edited by dbradx
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Further to what the others have said, the propellor should have some numbers moulded onto one side of the blades.  That number should be facing the front of the aircraft irrespective of whether the propellor is mounted as a 'pusher' as yours is, or at the front of the plane.

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The Volantex Ranger 600 is a pusher and, if the props are anything like those on the other Volantex models, I'm not sure that they will have any numbers on them. Prop on backwards is a very common mistake made with pushers - as stated above the prop needs to face forwards, irrespective of whether it's at the front or back of the aeroplane.  You can visualise that by taking a moment to look at the rotation and the way that thrust would be generated as the airfoil of the prop moves through the air. Easier to do than to describe and doesn't rely on there being numbers on the front of the blade.

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