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Offline atstrang

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chilli wind
« on: February 02, 2018, 09:40:25 AM »
Hi.  Does anyone have a chilli wind model designed by mike delacole?This is the larger version of the chilli breeze. I am thinking of building one for electric conversion. How does it handle? It has a thick wing section so i would have thought it would not be too fast. Any info gratefully received!!
Alastair


Offline The Saint. (Owen)

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Re: chilli wind
« Reply #1 on: February 02, 2018, 21:31:11 PM »
I had one but it developed tailplane flutter and bit the dust about 5 seconds from take off so i would suggest using 3/8" instead of 1/4" balsa. :)
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Offline Beezer

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Re: chilli wind
« Reply #2 on: February 10, 2018, 13:15:24 PM »
I bought a second hand Chilli Wind at a club sale a few years ago with the intention of giving it a quick tidy up and adding it to the fleet. I got it home, stripped out the knackered ST51 and dubious servos and started on the covering. The fuselage was not in a good state and quite oil soaked so I built a new one from a plan someone lent me and kept the original wings which were ok. I covered it with profilm, fitted an Irvine 46 and some new servos and it flies like a dream - absolutely on rails, very fast but also with very good low speed handling. The wing section isn't that thick and it has a fairly sharp LE but I can slow it right down and it will eventually drop a wing but the recovery is almost instant. With the Irvine, it has enough grunt for huge loops and cubans while slow rolls are a doddle. It is an absolute pleasure to fly so I would say go ahead and build one but NOT electric - that would be sacrilege!

Beezer


Offline The Saint. (Owen)

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Re: chilli wind
« Reply #3 on: February 10, 2018, 15:55:19 PM »
 
..... "stripped out the knackered ST51."
Beezer

What's up with the ST51?   ???
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Offline atstrang

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Re: chilli wind
« Reply #4 on: February 13, 2018, 09:02:15 AM »
Thank you gentlemen. I will go ahead with the build!!!


Offline The Saint. (Owen)

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Re: chilli wind
« Reply #5 on: February 13, 2018, 18:32:39 PM »
Just make sure that the tail plane is strong and stiff.  :af
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Offline atstrang

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Re: chilli wind
« Reply #6 on: February 14, 2018, 09:32:56 AM »
Thank you.  I will definitely do so!!

Offline Andy J

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Re: chilli wind
« Reply #7 on: February 19, 2018, 09:56:04 AM »
I had one but it developed tailplane flutter and bit the dust about 5 seconds from take off so i would suggest using 3/8" instead of 1/4" balsa. :)

Funny you should say that, I had a Chili Breeze that lasted a similar amount of time, took off and then no elevator control, culprit was a failed nylon clevice of the same type that Chris Foss puts in his kits, since that day I've never used those clevices on anything other than small low performance models.  I didn't build the model by the way, I bought it secondhand but unflown, it had never even seen and engine or servos
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Offline Beezer

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Re: chilli wind
« Reply #8 on: February 20, 2018, 10:52:43 AM »
Yes, I've had experience of the Chris Foss clevises too. Some years ago I was checking out a Wot Trainer for a student and discovered that the clevis on one of the aileron pushrods was so slack you could pull it off the threaded part of the pushrod very easily. Needless to say, they were all replaced with metal ones and locknuts.

Going back to the Chilli, I suspect that Owens tailplane failure might have been due to elevator flutter caused by a sloppy pushrod although just after take-off, it maybe wouldn't have been travelling that fast. Certainly, mine with a 1/4 balsa tail has never given me cause for concern. I seem to recall too, that Chris Foss strengthened the tailplane of the Wot 4 and Acro Wot with a hardwood insert but I suspect that was because people were using bigger engines in them and putting a lot of stress on the airframe.

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Offline PDR

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Re: chilli wind
« Reply #9 on: February 20, 2018, 13:53:06 PM »
When the original Mk1 plan pack and then Mk2 kit came out the instructions were quite specific. You can put a 61 in for "release at full chat" vertical launches on a silencer and a 12-6 prop (or similar), but use the throttle sensibly because full chat whicle diving could overspeed the airframe. A piped 40 on a 10-6 won't do this. A piped 60 on an 11-8 can be used, but the throttle must be used with care as it would be ve4ry easy to overspeed the airframe with this poower combination.

People ignored these words and then complained about tailkplane failures in full-throttle vertical dives. In the end Chris got fed-up with the complaints and introduced a short spruce stub-spar in the tailplane with a note that this was only needed for high-power setups.

I built and flew a Mk1 (merco 61mk3), and several Mk2s with Webra Champion 61, OS40FSR, Laser61 and OS40-4str (pre-surpass). All of the Mk2s were the original (all balsa with constant chord wing) design, not the later ply or glass fuselaged options. One of the Webra-powered ones had retracts in the top of the wing to allow inverted landings. Although some of the 2-stroke powered ones were piped for quietness they all had low-pitch props and a pilot with a brain, so they neither had nor needed the tailplane stub-spar. The one with the 40-4str was a truelly delightful machine to fly despite its low power. It lacked a little in continuous climb power, but the 12-5 prop gave it quite reasonable grunt. The same engine was later moved to a Veron Tiger Moth, which was also a great little model for its day.

PDR
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Offline The Saint. (Owen)

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Re: chilli wind
« Reply #10 on: February 20, 2018, 14:25:57 PM »
I had a Rossi .53 piped that would have taken the Chilli Wind to the moon, what a beast that was. ;)
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Offline NigelR

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Re: chilli wind
« Reply #11 on: March 20, 2018, 10:51:20 AM »
Afternoon all, probably a bit late, but my dad flies a Chilli Wind with an electric powertrain, it's a brilliant flyer. Uses a 3648 900kv motor, 11x8, 4S 4000 lipo. Pulls about 60A freshly charged for ~800W. AUW (inc lipo) is 4 3/4 lb - vertical no problem. The wing isn't that thick but there's a decent amount of wing area so low speed manners are pretty good.


 

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