Thanks a lot AircPirateNinsei!!.
...Are these waste then or could I use them in something?
For twin engine do the props need to be 1 CW and 1 CCW or both will be CCW.
You can build a twin engine either with both the same direction or with counter rotating props (one of each direction). CW props are also used on pusher designs.
You can use either prop anywhere so long as the motor turns the correct direction for the prop, Brushless motors work the same in either direction. The only issue is that the particular model design may have a built in thrust angle to compensate for the motor rotation tending to steer the plane. The mini scout has this. Obviously if you run the motor in reverse then the compensation will actually make the problem it is supposed to fix worse.
You could build a mirrored motor pod to use those props on the mini scout if you really wanted too but props are cheap and they break when you crash which you will. You will be getting more in any case so I would just get the normal props and put these CW props in your build box for some later use.
I just Built a mini Scout from 5mm foamboard from Hobbycraft here in the UK. It really is quite heavy. AUW is around 210 gram. I lasercut new parts from 6mm Depron earlier. Hopefully get it much lighter this time using UHU por glue. Depron parts weigh in at 38 gram so fingers crossed.
You can build a twin engine either with both the same direction or with counter rotating props (one of each direction). CW props are also used on pusher designs.
You can use either prop anywhere so long as the motor turns the correct direction for the prop, Brushless motors work the same in either direction. The only issue is that the particular model design may have a built in thrust angle to compensate for the motor rotation tending to steer the plane. The mini scout has this. Obviously if you run the motor in reverse then the compensation will actually make the problem it is supposed to fix worse.
You could build a mirrored motor pod to use those props on the mini scout if you really wanted too but props are cheap and they break when you crash which you will. You will be getting more in any case so I would just get the normal props and put these CW props in your build box for some later use.
If you counter-rotate the props, it SHOULD eliminate the need for any lateral thrust angle. Vertical thrust angle may not be affected, but with twin engines, the center of gravity will probably shift up or down and the thrust may be greater necessitating an alteration in vertical thrust angle.
If you counter-rotate the props, it SHOULD eliminate the need for any lateral thrust angle. Vertical thrust angle may not be affected, but with twin engines, the center of gravity will probably shift up or down and the thrust may be greater necessitating an alteration in vertical thrust angle.
I looked for the source of the idea for a twin scout in this thread, but couldn't find it. I figured I just missed it rather than simply having inferred it from the thread.
I looked for the source of the idea for a twin scout in this thread, but couldn't find it. I figured I just missed it rather than simply having inferred it from the thread.
no worries. Good luck with your twin scout idea. Counter rotating props seem best since its a small model. Then you can have a perpendicular fire wall. The scout has a fairly pronounced downward thrust angle too. I'm not sure why it needs that.
This is my 3rd. Love this plane! The first spent a forthnight up a tree and came down warped a good deal from the elements and blunt trauma to get it down. The second I gave away, this is the third. I'll maiden it later today then dial some serious expo and hope it doesn't meet it's untimely demise too quickly
I just Built a mini Scout from 5mm foamboard from Hobbycraft here in the UK. It really is quite heavy. AUW is around 210 gram. I lasercut new parts from 6mm Depron earlier. Hopefully get it much lighter this time using UHU por glue. Depron parts weigh in at 38 gram so fingers crossed.
This is made from "heavy" foamboard from www.foamboards.com.au. Didn't think it would fly (too heavy). Pleasantly surprised to find it flies brilliantly. How can a tiny 3CH plane be so much fun to fly?