stunthanger.com
Building Tips and technical articles. => 1/2 A building. => Topic started by: jim gilmore on October 28, 2020, 11:28:20 PM
-
For those of you that fly 1/2a . what wing span models do you fly as 1/2A and at what line length. Most of my models in my younger years were 24 inch max and never really flew them on anything but dacron lines at 24-25 foot. Is there a model that you would recommend for 30-35 foot lines without being much more than a half a or maybe a, .09 ?
-
Currently, all of my reed valve 1/2a set ups are on 35 foot lines. For example, the vintage performance models Baby Nobler, Baby Ringmaster and baby flitestreak. All are 25 inch wing span and flown with a golden bee or a black widow. More than enough power and line tension. I could do 40ft lines on these, but I'm content with the results. I think there's a few in here
https://youtu.be/GszlCjGU3Hw
-
Oh there's a SIG 1/2a skyray at the end of that. Same lines and handle. 35 foot spectra power pro 20lb test (because it's .008 diameter also)
-
You can play with the line lengths until you get down to a rotation rate that won't drill you into the ground. But do not even consider using Dacron lines again. Time has definitely moved on--for the better!
I've got a Baby Bee in a SIG Baby Skyray on 42' .008 stranded steel lines--very good trainer. A Baby Clown with Medallion .049 on the same lines--very good stunter. A Lil' Satan with .049 Black Widow on 26' of 30 lb Spectra--which will drill you into the ground, or let you lose the plane behind your head when maneuvering. Whump!
The Divot
-
38' .008" stainless 7-strand American Fishing Wire in camo. .061 AP engine with Jan Haluzko venturi. 1960 Scientific P-40 with 22-24" WS. Sadly, this plane no longer exists.
https://youtu.be/osxQfIvjS3E