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IBob

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Everything posted by IBob

  1. IBob
    Yep, I'd agree there. Here is what ICP supply:
  2. IBob
    Sorry, wrong link, should be: https://www.atsb.gov.au/sites/default/files/media/24363/aair200700054_001.pdf My reading of that ATSB report is that they examined the crankshaft remains, using various methods. They verified that the alloy complied with the stated Rotax spec. They did not find any evidence of any manufacturing fault that may have contributed to the failure. They made no analysis of the design itself, which presumably was outside their remit.
  3. IBob
  4. IBob
    Nah.........just an alternative sort of tie-down.........)
  5. IBob
    I have the best set of cold chisels! They're actually Sears Roebuck 'Craftsman' wood chisels. Made out of some super tough stainless material: impossible to sharpen to anything like a wood shaving edge, but otherwise totally indestructible, I've been dealing to rock and concrete with them for 40mumble years....)
  6. IBob
    With due respect to your prof, I'm not at all sure that is universally applicable. I did a lot of work on industrial regfrig, boiler, timber kiln, hot water systems etc. This involved monitoring, logging and displaying as required all sorts of temps, pressures etc. We used to say that faulty data is worse than no data, in that it can lead you to faulty conclusions. And for the same reasons, when presented with stats, I have always wanted to see the raw data, not the data as it has been interpreted by somebody else.....
  7. IBob
    Each module has it's own soft start input. But those have probably been joined, to make one wire that goes to the starter solenoid. Or that's what I did.
  8. IBob
    Heavy Maintenance Manual section 74-00-00 Page 29, 912 'New Model' ignition circuit diagram. Shows plugs, sockets layout and wire colour coding, with coding key at lower LH. The missing wire goes to the kill switch. Cannot tell you what sort of connector, Mark will know.
  9. IBob
    Nice work, Marty. FWIW both my port lower coolant hoses pass through the angle of the lower engine mount, rather than under it. As I recall, I adjusted (rotated) the position of the fittings on the coolant pump to direct the hoses through that gap. It is easily done with the housing out using moderate heat. I mention that only as it may give you a bit more clearance under there. (PS: but whatever you do, don't mess with the fittings in the cylinder heads. They use a high temp Loctite and if you get seepage there it is a b*****d to fix!)
  10. IBob
    Yep. A couple of years back I had some simple RWY questions, and was very impressed by the prompt response and follow through. I was also told they had lost their Android developer but would be getting RWY up to speed soon. Just recently I had an issue with my uAvionix Ping occasionally dropping out, sent off an email and got a generic and nonspecific response days later. In the interim I had sorted my problem by messing with the Android settings (and somewhat contrary to the brief how-to on their website), relayed that back to them FYI and got a response to say 'Yes, that would work'. I came away with the sense that whoever I was dealing with had no Android insight.
  11. IBob
    Bill, the wheels in the S kit come with the hole in the middle. But ICP supply a plug to close that off, and instructions to drill an offset hole, as you propose.
  12. IBob
    A little light relief (and a whole lot of thread drift). This remains one of my favourite Monty Python sketches of all time. And the phrase that sticks in my head (and could be applied to all things, aviation included) is at 03:15.
  13. IBob
    Nev, someone in the S Island here is now manufacturing a louvre setup. Initially for the Sav, I think, but no doubt adaptable for other configurations. A mate who flies a lot more and often higher than I do recently sent me pics, and it looked like a really nicely designed and engineered thing.
  14. IBob
    Skippy, I'll take some measurements when next in. I cannot take any credit for the choice or the installation: I just followed the instructions and equipment that came with the kit (which included both the coolers) plus the excellent build pics supplied by the Oz agent at the time, Reg Brost. Points of difference between my aircraft and yours would have to include that my fixed pitch prop is set up for the usual compromise between takeoff and cruise. I typically cruise at 5000RPM and 85kts. And while the Savannah will go quicker, as a draggy aircraft with a fat wing, it doesn't really want to. All of which is to say that your engine is almost certainly working much harder than mine in cruise and so producing more heat.
  15. IBob
    It'll be interesting to see where you arrive at with both resizing and repositioning of the cooler, Skippy. The Savannah has the cooler at the pointy end with it's own air intake and a pronounced lip under the rear cowl to reduce exit air pressure. I can't tell you the size of the cooler (I can measure it when next at the hangar, if you wish), and obviously we don't have your elevated temperatures here in Nuzeelun. But in winter I'm flying with about 2/3 of the cooler blanked off, in summer 1/3, and it still takes a sustained climb to hit the recommended 100'C mark.
  16. IBob
    Thanks for that Skippy. A couple more questions: What RPM do you cruise at if in cruise mode? What RPM do you get if you give it full throttle in cruise mode? You may have already covered all this earlier in the thread or posts, if so, apologies. It's probably I also need a lesson on CS props???
  17. IBob
    Can I belatedly ask why you are going for the extra large oil cooler, Skippy?
  18. IBob
    What Skippy said. Any transparent or semi-transparent bottle of reasonable thickness and with a reasonably robust screw top. The Sav one is really tucked away behind the oil tank*. Attachment is a very simple bracket riveted to firewall, bent out at the bottom to support bottom, bent out and scalloped at the top to steady the bottle neck, and with wings at the sides with holes: cable tie goes through holes to hold bottle back against bracket/firewall. *So tucked away that I had to fill it via a thin pipe inserted in the engine reservoir overflow.
  19. IBob
    You do really nice work, Marty. My radiator bottom corner initially touched the cowl on the port side, I was able easily to pull it up at the rear to give good clearance.
  20. IBob
    Partial glimpses here taken during build, when I was trying to figure out why my exhaust pipe wanted to occupy the same space as the cylinder coolant plumbing..............:
  21. IBob
    Hi Marty, the Sav has a bracket from the gearbox side bolts to shock mounts to the oil cooler top. This is a fabricated bracket that picks up the side bolts and has a crossmember across the top of the cooler. The bottom of the oil cooler is shock mounted to a bracket made in the same way that goes back to side bolts under the engine. That point also serves as the mounting point for the top of the coolant radiator, which is also shock mounted. The rear of that radiator is pulled up to the underside of the engine by a tie. I'm sorry I don't have a clearer pic.
  22. IBob
    The popular 1930s (?) book, The Professional, is intended as a humorous address... but also contains all the solid practical advice you'd ever need to site and construct a longdrop. Or a row of them (the family 3-seater etc). As this is what the book is all about. Factors when siting included putting it out past the woodstack: since the ladies don't like to announce where they are actually going, they can say they are just going out to get some wood. and that way the woodbox always stays well topped up. Clearly you missed the opportunity there, Marty......but you may still find you are required to add soundproofing....)
  23. IBob
    It grew rockets???????????????????
  24. IBob
    OME I have ridden to 13'000ft over Florida in Mr Douglas, a DC3 with tinted windows, 8 track stereo...and yes, shag-pile carpet (though I can't vouch for the fire rating). Where we all got out.......well, all of us except the pilot. The jump itself was a shambles: we all had green cyalumes taped to our rigs, but nobody had thought to equip the base (centre jumper of the proposed formation) with something of a different colour. So the sky was full of little green lights, all wandering around trying to figure where to aim themselves, before finally heading off for an empty bit of sky. But I wouldn't have missed it for worlds.......)
  25. IBob
    Despite the carpet in my kit being precut, fitting it wasn't the pleasure I thought it would be. I was using Ados F2 contact adhesive from the can on the hull, and from spray cans on the carpet. I'm a fairly tidy worker, but it was messy, with overspray finding it's way onto me, the floor, and anything in the vicinity of the spray area. It had the usual contact adhesive problem that you only got one shot at positioning the carpet piece. And I went through 2 cans of spray with only half the job done. For the second half, I hit on a better system: I thinned the can of F2. This allowed me to spread it on both hull and carpet with a brush, slowed the drying time, and allowed the piece to be peeled and repositioned if not properly placed. This was a huge improvement. The bond is not as strong as using straight F2, but is more than adequate for attaching carpet: 3 years on, nothing has come loose. For thinning I used what was to hand at the time: 2 way paint thinners. The fumes were awful, fortunately I have a good spray mask. I now see that Ados do a Solvent N for thinning and cleaning. In the next life I'll be using that......
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