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Forum: Aerodynamics

11-27-2020, 12:25 AM

Replies: 45

Nieuport flick rolls at top of loop

Views: 9,974

Posted By cutarug

Finally out of Covit lock down and allowed to go...

Finally out of Covit lock down and allowed to go to flying field, Nieuport now flies great,does not fall out of loops.
Turns out it was a COG problem and a bit more nose weight required.
Thanks...

Forum: Aerodynamics

07-17-2020, 03:21 PM

Replies: 45

Nieuport flick rolls at top of loop

Views: 9,974

Posted By cutarug

36cc 4 stroke Honda clone running straight petrol...

36cc 4 stroke Honda clone running straight petrol with wet sump. Plenty of mass so not much nose weight required. Very smooth running suited to this type of aircraft and scale like.
Best sound you...

Forum: Aerodynamics

07-16-2020, 04:57 PM

Replies: 45

Nieuport flick rolls at top of loop

Views: 9,974

Posted By cutarug

Thanks for the positive comments my first Covit...

Thanks for the positive comments my first Covit project, we are now in lock down so no chance of testing it now.
I have had time to make a few changes though, steerable tail skid, bolly prop which...

Forum: Aerodynamics

07-15-2020, 12:39 AM

Replies: 45

Nieuport flick rolls at top of loop

Views: 9,974

Posted By cutarug

Diffidently not overpowered in fact it needs a...

Diffidently not overpowered in fact it needs a dive to pick up speed to get it at a speed it will have any chance of doing a loop.
I have a 1/3 scale pietenpole that is very scale in power and...

Forum: Aerodynamics

07-10-2020, 01:58 AM

Replies: 45

Nieuport flick rolls at top of loop

Views: 9,974

Posted By cutarug

I used a cog formula to check position of balance...

I used a cog formula to check position of balance and I am 20mm forward of point where it should be.
I will make a jig to check the cog properly as it seems most think the Nieuport is nose heavy .

Forum: Aerodynamics

07-09-2020, 09:50 PM

Replies: 45

Nieuport flick rolls at top of loop

Views: 9,974

Posted By cutarug

There is a lot to consider there unfortunately it...

There is a lot to consider there unfortunately it happens so quickly it is hard to see what happens.
I will try removing a bit of nose weight a little at a time to be safe thanks for all the replies...

Forum: Aerodynamics

07-09-2020, 01:07 AM

Replies: 45

Nieuport flick rolls at top of loop

Views: 9,974

Posted By cutarug

I do not reduce elevator as it struggles to do...

I do not reduce elevator as it struggles to do the loop anyway. The way it snaps suggested to me that it is tail heavy, but most think it is nose heavy....

Forum: Aerodynamics

07-09-2020, 01:05 AM

Replies: 45

Nieuport flick rolls at top of loop

Views: 9,974

Posted By cutarug

I do not reduce elevator as it struggles to do...

I do not reduce elevator as it struggles to do the loop anyway. The way it snaps suggested to me that it is tail heavy, but most think it is nose heavy....

Forum: Aerodynamics

07-08-2020, 07:42 PM

Replies: 45

Nieuport flick rolls at top of loop

Views: 9,974

Posted By cutarug

Cog

I had trouble in early flights with it climbing and reduced the incidence from +2 top wing 0 bottom wing to 0 both top and bottom wings and it still flies with a little down trim.
The nose drops...

Forum: Aerodynamics

07-08-2020, 03:08 PM

Replies: 45

Nieuport flick rolls at top of loop

Views: 9,974

Posted By cutarug

Nieuport flick rolls at top of loop

I have just test flown a 1/4 scale Nieuport 28 and it flicks upright when I do a loop.
It is not overpowered for sure and flies scale like but it has this violent flick at the top of the loop. I...

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