Flight model question . Is it a bug ?

[hlbly]

       When flying the P-38 and going for a hammerhead. I have noticed that using rudder at the top causes axial roll. While using thrust differential does not. Flying RC planes I know this to be wrong. Common sense would also let the unwashed masses know this is not right. Thrust differential is the only way to do a hammerhead. Is this a design decision or a bug?

[TwinTail]

Shhhhhh!........They are on to us 

[Changeup]

       When flying the P-38 and going for a hammerhead. I have noticed that using rudder at the top causes axial roll. While using thrust differential does not. Flying RC planes I know this to be wrong. Common sense would also let the unwashed masses know this is not right. Thrust differential is the only way to do a hammerhead. Is this a design decision or a bug?

Are you a ninjaneer? Lol

[hlbly]

Are you a ninjaneer? Lol

No I am one of the unwashed masses.

[hitech]

       When flying the P-38 and going for a hammerhead. I have noticed that using rudder at the top causes axial roll. While using thrust differential does not. Flying RC planes I know this to be wrong. Common sense would also let the unwashed masses know this is not right. Thrust differential is the only way to do a hammerhead. Is this a design decision or a bug?

It is not incorrect.

Most planes in real life require almost full opposite aileron during a hammer head.

Most RC planes do not have much dihedral which contributes to a good portion of the roll do to rudder.

HiTech

[Easyscor]

In what other sim are you going to read a developer's comment about dihedral? 


 

[hlbly]

Slow stick has mass dihedral ....only a 3 channel do perfect hammerheads in it...dihedral causes roll stability in an RC....that is why all 3 channel trainers have alot of dihedral .

[alpini13]

LOL rc planes are not a TRUE representation of real aircraft,they are mostly NOT scaled in weight throughout the entire aircraft correctly....AND you can not scale down gravity, it stays constant.

[hitech]

Not sure what to tell ya hlbly, but I have done 100's and 100's of hammer heads in real life, in 5 different aircraft types.

Me doing one in my RV.

http://www.youtube.com/watch?feature=player_detailpage&v=ulpdOHcCiNE

All required full or almost full opposite aileron and lots of forward stick at  kick of the hammer head.

HiTech

[R 105]

 I got a lot of hours in a BL-65 Taylor Craft and have done hammer head stalls. There is always a moment of 0 gravity in the plane and stuff like maps oil cans soda cans what ever will float in the air for a few seconds. That is how you know you did it right lol. In a fabric covered plane you always need to keep pressure on the stick in stall maneuvers to prevent damage to the control surfaces. I found that out the hard way.    

[Easyscor]

Can anyone say Reynolds number?

[hlbly]

With no torque as in counter rotating props . Aileron is still needed ? Thrust differential would not induce axial roll but rudder would in RL aircraft ?

[Randy1]

The R/C plane's engine gets its thrust from high RPMs and low torque as compared to a relatively low RPMs and high torque of WW2.   

[blkblade]

Can anyone say Reynolds number?

Euler Equations?

[Easyscor]

Euler Equations?

That stuff drove me nuts once upon a time. It was a real slug fest.