ZUCZZ

FWIW, when clocked at the 2 : 7 position with # 01 @ TDC, you will miss the pulse, but the residue will always be there to a greater or lesser extent ... it's in the swirling air. The pulse itself on the other hand will kill a prop in the not too distant future ... my in cowl exhausts are 2" away from the prop and nailed it within the first hour, then I learned about the clocking.

Also, should you feel a bout of insomnia coming up, read www.cozybuilders.org/mail_list/topics96/epoxy_info.txt look for Nov 1996 to about 6 Jan 1997

Is it not amazing how time flies!

I don't age, but my friends are not doing as well!

Jannie did a lot of looking and poking and such and did not come up with a definitive answer. We recon that the most likely cause was that we went up to 7500 from 6500 to see if there was more tailwind. Then we did not richen the mixture when we descended. That would make sense in that the vibration went away. Later one sparkplug on the #6 showed it was on its way out ... #6 was also burning pretty black. regards

Rego Burger experienced this at Port Alfred, South Africa. An unfortunate sequence of bad decisions made him overrun the end of the runway, struck two trees and flipped it. He had no known reinforcing to the canopy. He's nearly done rebuilding the plane.

It's all very important when you sit or tinker about in the hangar ... that plane must look fast when it's standing still! Sometimes I go to the hangar, pull the plane out some into the sune (so that the colour shows) and just sit there looking at it. It's the only time that I can see the superb lines and beauty ... from inside it's really just cumfy seat facing a bunch of instruments and a fantastic view. And yes, I love mine most!

And when we parked we noted the streaking created by the vortex generators

some pictures

Right Fellers & Girrrls, Here is the promised report! The Ultimate Air Race (the trial run :-) ) held last Saturday at Rustenburg Airfield (FARG - 3700'), was an Unlimited All Comers WOT (Wide Open Throttle) Event. Fastest planes went first and when all the pistons 7 turbines were on the ground the Jets took to the sky! Everything from KR to Cub, Cherokee to Cirrus, Impala, L29, Hunter right up to Boeing 737 had entered. Some Citations & Kingairs had entered but commitments kept them from participating. The procedure was that you took off on 34 and kept it low while you build up speed. Then you did a wide turn and returned to start your race as you went over the clubhouse. Anyway Jannie's Cozy clocked about 185 Kt as we passed the line and climbed out some to clear the ridge. Weather data from the net showed that we'd have a minimal quartering tailwind at 6500', this proved correct and soon we were averaging 200 to 205 kt. The 301 Nm race is quite relaxing really, since you MUST use your GPS and that allows you time to look out for other traffic and concentrate on the engine and trim management. Just when we were starting to thing that we did have a good chance really ... there was this vibration. Really a vibration ... Jannie looks at me with the same size eyes and asks if I feel it too. Yes, it was thus not a figment of his imagination and he started elimination checks. Throttle down vibration goes away to smooth a 2100 rpm. No, its not the mags, no pieces have fallen off that we can see. So that was that, we throttled back and declared that we are withdrawing from the race, returning to the field at a sedate 176 Kt at 2100 rpm :-) After 40 minutes we had had an average speed of 200 kt (remember we had to climb over the ridge) which would have put us in contention for the second place. This (2nd) was achieved by the GP4 with 195 Hp at 188.97 kt and 833.2 kg, the winner was a Glasair iii at 216 kt and 998 Kg First RV home was 175.4 Kt and 681 Kg. That was for the FAI category 1B, under 1000Kg MTOW. HA, but they are all 2 seaters! A great and fun day! Then the Jets did their race thing, starting with the Boeing, same course, same rules. Anyway, I don't want to bore you all with more of the same ... you can read all the banter and see the photos on AvCom, you'll have to register - free. http://www.avcom.co.za/phpBB3/index.php Story etc under Events in General (think you can see this without registering) Photos in the Photography section (go figure!) under "Seen at FARG" here are some links from Facebook: In this clip you see Chris & Jannie @ the Cozy, waiting for the arrival of the Hunter, http://www.facebook.com/people/Chris-Van-Hoof/1113444908#/home.php?ref=home The second clip is of the Boeing 737 coming over the startline ... that got the people off their patios and to the airport :-) http://www.facebook.com/people/Chris-Van-Hoof/1113444908#/home.php?ref=home Enjoy! Lastly and Thank You to Jannie Versfeld for inviting me into the Navigator seat!

Gone racing ... will let you all know on Monday!

Did too, thanks for the prompt!

Hello??? You all back & recovered from Osh? cvh

Hi Folks, Just a short note to tell you all that Jannie Versfeld has entered his mighty Cozy Mk IV.540 (ZU-DAR) in South Africa's Unlimited Air Race. The race is a closed course and is done using a running start, then you return at higher (just not lower) than your departure alitude. (Faster planes go first) He's hoping to do well and test runs have shown 200kt at WOT, how can we increase this? OK, since then we polished, sealed gaps and are trying to move the CofG back some ... (how much could we gain by the CofG movement? would you think?) (It's too late to diet, so the weight is going to be reduced in the plane ) Jannie's plane is fitted with VG's ... how much could we gain on top end if these were removed? Question, what is the fastest manner of doing a 180 deg turn. To us it feels like 60 degree bank and getting as close to the turning point in the apex of the turn... Any tips or tricks appreciated! Please tell us your opinions!

Thanks for sharing your photos!

Erland, I'll look for some pictures ... just reloading my crashed computer first. It is actually easier than you think. simple as can be.

Take a big memory card for your camera, take lots and lots of pictures ... then post them here so that we can enjoy your good time! Can't go either this year! Chris Van Hoof Johannesburg South Africa

I'm SURE that there is more work on the Cozy, after all it is bigger and has dual controls. Can you measure the difference ... i doubt it seriously. But then you could and tell us how much :-) And you could quantify the $ value difference, but by the time you finished writing the report, you would have finished the bigger plane My opinion ... build the 4 seater, that way you CAN take all the luggage that you want for a 14 day holiday! Have fun!

Dear folks, One tries one's best, is about the best you can get from preparation. There are superb examples flying from those that followed the plans and just sanded. Then there are equally superb examples flying from those that did the sandblast, just to get the last iota of grip on the matrix. Now folks, the object is to fly, no matter what the object is! Be carefull, there is a fine line between picking your nose and making it bleed! I say this, because I had all the same questions and fears before mine got to fly ... hindsight, I'd worry less and get to fly more ... have you seen some of the gastly examples that fly into Osh? ... but they flew there!

Always sad when this happens!

Congratulations ...!!!

Jannie Versfeld's broke off ... One photo shows the 3 pipes each side (new) the other shows the 3 in one - which broke after the 3rd join.

But Wayne, you do need to put them together to get the line to position these ... what did I miss?

Can't see "which" wheelpants they are, but I had similar with my "james" pants. Once the tyre cutout was made it all went somewhat easier ... that said, they are still not fitted... There is some very valuable advise available. I'll look for the links regards cvh

When I think about it, it must be the plexiglass (or whatever) that causes some of the problem. Not just the cold, but temperature changes in general. Looking at my small windows in the opening part of the canopy, I can clearly see that they are now bowed much more than they were when the canopy was made. great care was taken to make this part smooth and it used to fit superbly. Now it looks like I got it a a second hand spares place... it has definitely become worse after doing the climb tests, but then you people in the very cold climates must suffer the same?