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Jul 28, 2011, 05:16 PM
Registered User
Daemon's Avatar
"pusher" version props only exist for gas planes because they can only turn the motor
one direction. For electrics you just use the regular prop (still with
convex side forward) and spin the motor the opposite direction.

ian
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Jul 28, 2011, 05:43 PM
Registered User
rcplanes1234's Avatar
Quote:
Originally Posted by Daemon
"pusher" version props only exist for gas planes because they can only turn the motor
one direction. For electrics you just use the regular prop (still with
convex side forward) and spin the motor the opposite direction.

ian
Ok and what about the tail being shacky. It was my post before the one about the prop. Thanks!
Jul 28, 2011, 05:59 PM
Registered User
rsowder's Avatar
Quote:
Originally Posted by rcplanes1234
Ok and what about the tail being shacky. It was my post before the one about the prop. Thanks!
That's normal. Mine shakes and has not been a problem. Some reinforce it, but I don't think it's necessary.
Jul 28, 2011, 06:54 PM
Registered User
rcplanes1234's Avatar
Quote:
Originally Posted by rsowder
That's normal. Mine shakes and has not been a problem. Some reinforce it, but I don't think it's necessary.
some people but way to much on. I think if you get those cr in nice and glued the wing snapping will no be a problem especially with the new version.
Jul 28, 2011, 07:05 PM
Registered User
rsowder's Avatar
Quote:
Originally Posted by rcplanes1234
some people but way to much on. I think if you get those cr in nice and glued the wing snapping will no be a problem especially with the new version.
I have made no structural modifications to mine and have had no accidents in over 60 flight hours.
Jul 28, 2011, 09:22 PM
FPV maniac
bah7566's Avatar
Quote:
Originally Posted by Daemon
"pusher" version props only exist for gas planes because they can only turn the motor
one direction. For electrics you just use the regular prop (still with
convex side forward) and spin the motor the opposite direction.

ian
Ian,
Your statement is not totally correct, pusher props do exist for electric motors although they are not really necessary because you can run the motor in either direction.

http://www.toddsmodels.com/APC_Pusher_s/43.htm

An electric pusher is usually used in a twin configuration so you can have counter rotating motors to help with yaw and critical motor issues in the event you have one motor fail during flight. On a single motor application, you have no critical motor so it's just a matter of what torque direction you care to deal with. Either a normal prop or an electric pusher would give equal performance.

Bruce
Jul 28, 2011, 09:44 PM
Registered User
rcplanes1234's Avatar
Quote:
Originally Posted by bah7566
Ian,
Your statement is not totally correct, pusher props do exist for electric motors although they are not really necessary because you can run the motor in either direction.

http://www.toddsmodels.com/APC_Pusher_s/43.htm

An electric pusher is usually used in a twin configuration so you can have counter rotating motors to help with yaw and critical motor issues in the event you have one motor fail during flight. On a single motor application, you have no critical motor so it's just a matter of what torque direction you care to deal with. Either a normal prop or an electric pusher would give equal performance.

Bruce
Ok thank you!
Jul 28, 2011, 10:37 PM
Registered User
Daemon's Avatar
I put "pusher" in quotes to emphasize the pushing requirement. Your explanation
for the existence of counter-rotating electric props are still for tractor application.
There is no need for a true pusher electric prop.

ian
Jul 28, 2011, 11:38 PM
Fly Chitty Chitty Bang Bang!
EarthOrbiter's Avatar

Vertical wings


Vertical lift with multiple props may require a counter rotation.
A angle of around 3 Deg offset depending if it is CW or CCW helps to mechanicaly balance the twisting air direction. Prop torque is a interesting discussion. It reverses with propeller direction.
Jul 29, 2011, 02:03 AM
3d Kiwi
uptime4downtime's Avatar
Hi. Can this plane be successfully flown with just an rudder/elevator? I'm interested in this comparison to stock ezy* which is stable as a simple r/ e flyer. I desire this for simplicity/ safety reasons.

One more question. How does it handle wind? Thanks Regards. Rick
Last edited by uptime4downtime; Jul 29, 2011 at 02:14 AM.
Jul 29, 2011, 02:54 AM
Registered User
Daemon's Avatar
It might fly with R/E only but it would handle like a pig. Eliminating ailerons
doesn't make an aircraft safer, especially in wind.

ian
Jul 29, 2011, 03:24 AM
UAV Pilot
UndCon's Avatar
In many of my videos I fly with the end result in mind - it means I try to keep the plane and camera as flat as possible.

That is turning with rudder but counteracting with ailerons.

At 1 time I forgot to connect the ailerons and I had a hard time bringing the plane back safe on ground - I would not fly without it.
Jul 29, 2011, 06:14 AM
Never fly an A model anything!
jayb1rdz's Avatar
Usually but not always, ailerons will bank the plane before turning. With rudder, the model will turn before banking.

On full scale, often the rudder is used to stop the plane dropping the nose and sliding out of the sky like a frisbee on a sharply banked turn. The point being, it's best to have both options.
Jul 29, 2011, 09:52 AM
Registered User
rcplanes1234's Avatar
Where should i measure the cg? The manual says 75mm back from the leading edge but I don't always trust that. I measured at 75mm and I was tail heavy. Thanks
Jul 29, 2011, 10:55 AM
Flying low is expensive.
pdiddyg40's Avatar
25-30mm behind the servo wires. Haven't you at least skimmed this thread?


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