I'm in the process of building my first Joe Bridi Model, the 60 size Killer Chaos. At the moment i'm struggling with the engine choice. I have found a OS .61 SF ABC-P on the web for sale. Could anyone give me some advice on which engine choice will work well with this model? Any help will be greatly appreciated..

John

Hi. Mine is powered by an OS55AX and it's perfect for the Killer Kaos. It weights 5LBS 1oz. RTF and I fly at 5600 feet. Jim

Hi John,
I powered My Ultimate Kaos with a Tower .75
with APC 13X9 PROP.
Hoss.

a Jett 90?[X(]

John

I had an Ultimate Kaos back in 1996 and flew it with a Hanno. It was a great flyer with that set-up. The OS 61 SF-P will be a great match for the airframe as well. Also, for a light powerplant, you might consider the Evolution 60NX (not the 61). I'm putting one in a World Models Intruder. It's a 60 in a 46 crankcase.


Rob

John

I built and flew an Utter Kaos in the SPA using an Evolution 60NX. The 60NX is a smaller case 60 similiar in size to a 46 or OS 55. I had real good luck with the engine and it pulled the Kaos unlimited. The weight of the Utter is 5.5lbs and is similiar in design to the Killer except the Killer has the engine side mounted.

The Evolution 60nx runs well with the stock muffler and really screams with a Tower Hobbies 46 muffler or a Evolution tuned muffler.

I was not tail heavy for my flying. Although I did cut some holes out of the rudder balsa prior to covering to offset the lighter weight 60.

Use an OS.91FX. <div>Same size/weight as a .61 with some more power which is handy.<div>Bet there's some going SH.</div></div>

Thanks for all the advice.. I have been on the watch for a Hanno 61 special. One recently sold on ebay stil new in the box but I missed the bid process by about an hour. I will defnitely consider all the options. Keep the suggestions coming.... Please..