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Speed,Combat,Scale,Racing => Combat => Topic started by: Brad Smith on October 21, 2012, 07:58:36 AM

Title: Sterling Profile P-38
Post by: Brad Smith on October 21, 2012, 07:58:36 AM
Sterling Profile P-38 would this be legal with twin la 25s on it for ww II combat?
Title: Re: Sterling Profile P-38
Post by: Paul Smith on October 21, 2012, 08:21:31 PM
.50 cubic inches is a lot more than .36 or even the 40's that sometimes slip by at The Brodak.  I was toying with the idea of twin 15's but they won't allow an electric starter and I refuse to hand-flip a twin, especially against a time constraint.
Title: Re: Sterling Profile P-38
Post by: Brad Smith on October 21, 2012, 10:19:02 PM
I ment la 15s
Title: Re: Sterling Profile P-38
Post by: wwwarbird on October 22, 2012, 11:47:21 AM
 FWIW, I have a Sterling P-38 with two LA.15's. For me it was just a fun fly plane and would be worthless for any type of tight maneuvering, like combat. It now hangs on my shop wall, where it belongs. Imagine swinging a two pound rock around on a 55 foot rope, these are the flight characteristics of this combination, literally. And landing after the engines quit? Barely more than a controlled crash. ;D
Title: Re: Sterling Profile P-38
Post by: Paul Smith on October 22, 2012, 03:47:46 PM
A P-38 would be cool at The Brodak WWII combat where they barely even keep score.  It would need to be substantially off scale (like all the others) to perform in combat.  Again, starting is the deal breaker.   
Title: Re: Sterling Profile P-38
Post by: Balsa Butcher on October 27, 2012, 04:16:21 PM
Nick Ziroli designed a P-38 for combat. Single engine but dummy spinners on the booms. Plans available thru Barry Baxter or possibly Flying Models. Looks like it would be a good flier. On my future build list. 8)
Title: Re: Sterling Profile P-38
Post by: john e. holliday on October 28, 2012, 08:27:03 AM
Yes, that was a good flyer for sport flying.   Too much work for combat competition.   I built one when it was published.   Flew it once and sold it for three times what I had in it.
Title: Re: Sterling Profile P-38
Post by: Bill Little on October 28, 2012, 10:47:32 AM
The large problem with the 36" Sterling P-38 is it builds heavy from the kit for its size.  With wood substitution, it would fly well with Norvel .061, probably.  It is way too small and heavy to actually fly well with the modern .15s.

BIG Bear
RNMM/AMM
Title: Re: Sterling Profile P-38
Post by: Rick Bollinger on October 28, 2012, 12:28:31 PM
I have been thinking about building one I have 2 cox medallion 09s laying around. What is the opinion on these engines?
Title: Re: Sterling Profile P-38
Post by: kenneth cook on October 28, 2012, 06:53:04 PM
             Rick, I certainly feel they would suffice. They're light enough for the thin wing the plane had, and they have ample power. I'm quite sure Tee Dee .09 heads would give more power if needed. The main problem is the plug issue as they're getting harder to locate. I believe the weight is the killer on the modern 15's. They fly the plane but when the power cuts it's a brick. Ken