I just ordered a Killer Chaos 60 from Joe Bridi before they become extinct. I understand that the plane builds pretty light.
For those who have had experience with this plane, what 2 or 4 stroke engines would be best suited. I've been considering a Magnum 91 4-stroke. My LHS frequently has them on sale at a price that is hard to walk away from. Thanks.

Redwind,

The engine choice depends on how you intend to fly the plane and your budget. For all out performance and entry into pattern competition, I recommend either the OS 61 "Hanno Special" two stroke. Or the YS 91 FZ four stroke. I used to have a DC Killer Kaos which is virtually the same airplane (98% common parts) with the Hanno and it was a dream to fly.

For sport flying, good 2 stroke choices include the OS 61 FX, TT Pro 61, Irvine 72, Super Tigre 61 or 75. I'd steer clear of the YS 61 two strokes. While powerful, they're cantankerous. The Hanno is packs more power and is much more user friendly.

For 4 strokes, I'd go with a good 91 like OS, Saito, Enya, or Thunder Tiger. I'd be leery of the Magmun. I've read many negative posts on Magnum four strokes.

As with most things, you get what you pay for. There is a reason that Magnum four strokes "have a price that is hard to walk away from". I would go with a Saito .91 or 1.00 for a four stroke. Two stroke I would probably choose a Supertigre .61 or a TT .61.

People are saying that Super Tigre quality has gone downhill pretty badly, and I'm inclined to believe it. Some friends and I spent hours this summer trying to get a GS45 running right, to no avail. It was a hunk of junk. When Great Planes took over Super Tigre, they valued the dollar over the reputation of the product and moved the production to China. They've become poorly made engines, and I'd not recommend them to anyone. They aren't what they once were.

I have seen and heard the "Magnum 91 4-stroke" is the only good engine Magnum makes. I don't own one.

As for the Killer, I'm considering an old Super Tigre Blue head or a Saito 72. Joe recommends light not power. If built properly, RTF weight should be around 6 pounds.

I seem to recall people saying this about the quality of OS Engines years ago!!

...The Killer is a side mount engine, and doesn't lend
itself to the O.S. RF, on the Hanno.

I have a Magnum .91 4-stroke, and it's one of the
best engines I have ever run, however It's too heavy
for the Killer IMO. Want a real light, inexpencive,
crankin' motor ? The Tower Hobbies .75...$100.
Super warrantee. Mine turns a 11-7 1/2 Master
Airscrew at 14,000 RPM's.

With the Tower .75, there won't be too many
planes that will out speed it, or out-climb it. The
RF or Hanno engine is the correct engine for a Kaos,
or Super Kaos.

Dave.