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ZUCZZ

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Everything posted by ZUCZZ

  1. Wanted some more info of these elements but can't find any links to the Gary Hunter website, nor Featherlite ... any pointers, please.
  2. Suppose one must look at the efficency of a longer prop ... at what point would the tip reach max effective velocity? There are some prop programs that can answer this, sorry I have no links to these.
  3. So many moons ago, probably about 1995, we did extensive comparative testing of the Epoxies. Someone had problems with Epolam 2427 (IIRC) The findings are somewhere in the early Cozy Archives. it was quite a bit of work ... More interesting were the methods used to compare the various types of epoxy. The fellers on the group found some "home" test rig in a book by Marshall (IIRC) The idea being that you could replicate the rig at home and do some basic testing in order to make your own comparison. Some research will yield this info, and it also contains the results of the original Rutan type epoxy.(referred to in the plans) Hope this may help some.
  4. Can't really help you with your question, but I'm sure glad mine don't go to the bottom ... so far my plane has tipped on its tail 3 times! While building my Cozy, it became apparent from the emails passing thru my computer that this is going to happen, sooner or later, so I reinforced this area ... and am glad i did! regards
  5. "When I did this in X-plane my front wheel came up and I had a propstrike" Is that not just popping a wheelie? just too much power
  6. ZUCZZ

    Cannard Baffling

    I'm now using a very soft spunge strip, such as used on doorseals, but much softer and larger. it has a selfadhesive strip on one side ... works Ok, but only 3 flights so far.
  7. That may be so, but that plane is in a T/O weight class lighter than the Cozy. Cozy falls in same weight class as the Bruce Bohannon records, 45K+. He picked up 5 records in one shot on that run. (IIRC) Anyway, Cozy holds the South Africa record, still processing the paperwork
  8. Ok, I'm a little puzzled here ... how fast do you peole plan to make your plane?
  9. And that looks neat too! and of course, much more accessible
  10. These tornadoes are totally foreign (no pun intended here!) to me, since we don't get this sort of thing in South Africa, think the last one that hit here was 1956 in a town called Roodepoort. A tiny little localised one hit a small airport here called at Contermanskloof & wiped out 4 of the 6 or 7 T hangars. However, due to the TV, we have some inkling - (I know - nowhere like living it) - but sufficient to genuinely say that we do share your happiness and our thoughts are with the less lucky people! Chris Van Hoof Johannesburg
  11. Tell you about the position of the Cozy Mk IV fuel valve ... Initially I thought that this was the weirdest spot to put this item, after having flown it some hours (35) i can now tell you that it is not difficult to reach, manipulate or any problem that I perceived before the plane was flying It now feels as natural as sticking your head under the dash of the Cherokee, or fumbling for the lever in the Aeronca FWIW
  12. Sorry, but it's not a problem in my Aeronca Chief, Partenavie P64B, Cherokee 6.300, nor my Cozy Mk IV ... yes, fuel is dangerous etc, etc ... but plumb it correctly and as per plans & I don't see a problem, ... if you feel really insecure, you can move all you stuff to different places ... all you will do is move the problem, but fuel you will need to run the show Man, I have solutions to problems I never imagined! Follow the plans, enjoy the plane!
  13. The Rutan additional fuel tanks were a bolt on addition, he described the fitment, but i did not understand well at the time, just remember thinking that it sounded very logical. For looks the Mellvil ones were prettier and generally better finished.
  14. About the length of the canards, I can't remember if it is just past the line that the main spar would have been ... if it were a Cozy, i would have said that the canard is the version before the shortening, but bar recognising a LongEze (barely) i cannot comment :-) (I also did not have any knowledge at that time, an ignoramus of note, rather ... now I think I know ) Accroding to Mr Rutan ,the "wing section" helps carry it's weight. Yes the sketches on this topic are prettier, but if I was to add such, i'd follow Rutan ... but that's me
  15. How does this differ from the one's fitted to Dick Rutan's plane on their trip around the world? First picture taken a Margate (FAMG) South Africa during our EAA annual convention, second one from the net somewhere. This one was plumbed in to follow the basic gravity feed system and the profile was the same as the wing, enlarged as required, it also had a fuel view panel on the canopy side, just like the fuel viewpanel in the cockpit, due to it's position duplicating the original fuel tanks it also did not affect the C of G ... said Mr Rutan.
  16. I don't know about figures ... but when Jannie's plane (ZU-DAR) approaches or departs it leaves plain goosepimples ... you can hear that drone for miles ... nearest sound is tinnitis or heavy rock but loud!
  17. About Skytec ... The slightest kickback will kill the lightweigt Skytec. I've even managed to destroy the larger type, that too with a kickback. Then I changed from the "shower of sparks / starter vibrator" set-up to straight impluse magnetos and that was the end of my problem with starters ... Hope this has some value to the reader
  18. About Updraft Cooling ... good! In order to build some time and get more comfortable on the plane, I did a X-country of about 97 Nm, On the way back it was just starting to get bumpy (28 C up there) and it flew just as nice, however, I did notice the performance slacking off some 15Nm to BaraG (FASY), no amount of leaning or fiddling could get it back, and it was not the wind ... Anyway, came in a little fast to 31 at the drome and decided on a go around. Soon as I took power the whole contraption started spluttering and coughing, so I did a shortish tight circle and put her down, what a snap, crackle and pop to get the show to the hangar (slight uphill) On shutdown, I saw lots of oil on the prop and all over. Totally peeved, made it secure and left for home, not wanting to deal with any more problems on that day. Sunday - pulled the cowlings and was surprised to find the # 02 spark upper plug lead had separated and was loosely in place - must have been an oversight in my checking, since I cannot believe that this can come adrift by itself. Much more interesting was that the # 03 fuel injector pipe had broken and was held together by the rubber insulation, not quite right off, but a light jiggle and it came apart smartly! The underside of the top cowl was blue from the fuel dye and must have had copious quantity of fuel go over this. The updraft cooling must have saved the day, since it appears to have blown the fuel vapours right out, what with the opposite side having a sparking wire at the ready to create havoc. Must have been my lucky day, what with not catching fire & such ... :-) But that is mostly due to the Updraft cooling! Regards
  19. from the Cozy Builders List: Hello All, Today at 16:15(local time) after 7 weeks enjoyment flight I landed at Tel Aviv airport (LLSD. I'm a bit tired but with a lot of satisfaction. I want to thank all the folks that helped me along the way. The next few days I will stay at home with my family and friends, than I'm planning to carry out some modifications in my COZY interior. Regards Yair Gil
  20. So, what is the latest news on our travelling Cozy?
  21. OK, I can't throw light on the issue of why he hit the house, but around here (Johannesburg SA) we have a Velocity owner with a TIO-360. The interesting bit during his taxi testing was that he managed to cook and damage the aileron controls to the point of near failure ... only because of the constant checking was this noticed. It is now seriously protected, but when is enough sufficient? just another point to think about.
  22. Just to re-iterate my earlier contribution ... In that particular area, the foam has been reduced in thickness already, so the installation of a like size window could hardly be a major problem. IMHO and your results may vary
  23. Then make one ... finger thick is the most space you need around any part
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