lamarkeiko

My Feedback: (1)

I am just starting the build on my Sig Four Star 60, and I would like to change the last wing bay from square to rounded. I am planning on using the full length of the bay, but rounding it. My concern is,will I affect the flight charastics by doing this, and if so, how do I properly do the rounded tip to not adversly affect the planes flight? I also intend to round the stab, elevator and rudder. Are there things to be concerned about here?
Thanks
Lamar

Campgems

There have been a number of 4*60 bashes and those that you want to do have been done successfully. There were a couple threads a while back on just bashing the 4*. There were some reallynice mods done.

On change I did on both of mine was to use tapered aileron stock vs the stock ailerons. I don't know ifitimproved the flying or not as I never flewwith the stock ailerons. I know that they worked well though. Tapered ailerons with the rounded tip going all the way to the TE would look nice.

Don

Gray Beard

My Feedback: (-1)

I have never noticed any flight changes from rounding the wing tips but I have only done it on clipped wings. All the clipping does is give the plane a better roll rate. The 4*s are an easy kit to do some bashing on. I have done a lot of different things to them and never noticed any bad changes. Last year I finally built one completely stock. It's just a very good design and nothing seems to bother it.

JollyPopper

My Feedback: (6)

I have a .40 size four star and I rounded the tips of the wing as well as tail feathers among other mods. It was absolutely the most hands off plane on its maider flight that I have ever seen. It needed no trimming whatsoever except for one click down on the elevator. It has an old HP .40 in it and is a little rocket. A positive delight to fly. The rounded tips of this one didn't adversely affect it.

JNorton

My Feedback: (2)

I would clip a wing bay on each side and then round the tips. Stock 4 * really like to float. Clipped one bay they still do!
John

lamarkeiko

My Feedback: (1)

Thanks everyone for your replies back. I'm sure I'll have more questions as I continue my build.

Lamar

Gray Beard

My Feedback: (-1)

Most the time I clip 2 bays and it's still a floater. I have never removed more then that but I'm sure you could keep cutting quite a bit before you have any problems.