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danny_galaga

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Everything posted by danny_galaga

  1. danny_galaga
    No. I'm not even sure why they put that earth symbol there, other than to say if you've wired your aircraft with negative earth (that is, instead of having a negative wire going to devices, the battery negative connects to the metal airframe and your device gets its negative from the airframe, like a car does). In any case it's probably best to use wire for the negative of your regulator, not the airframe.
  2. danny_galaga
    Yeah, we are saying the same thing in different ways. Electrically, saying "earth" on DC voltage electrics in cars, trucks etc implies a common "ground" connection, nowadays always negative via a metal chassis, body etc. as you know, that's what is happening in your car. Just saying "negative" doesn't automatically tell you how it's created. That's why I was trying to be really clear. Some cars up until the 1950's had positive ground! Pommy of course 😄 So with my auto electrical background, knowing how problematic earth return/ground/common is on things like trailers and boats, I fully understand and embrace "earth return" wiring in an aircraft. That is, wire carries the current for both positive and negative. No device on my aircraft is powered via current transmitted through the metal of the airframe.
  3. danny_galaga
    The only "earth" on my plane is the negative battery cable going to a bolt on the starter motor rear housing. Everything else is negative wired. The airframe almost certainly has negative potential because something will ground the engine to it somewhere along the way (for instance the throttle cable. Or maybe the Facet fuel pump) but it's not part of the "deliberate" electrical system.
  4. danny_galaga
    You're preaching to the converted. Earth return on everything on my build. My regulator is hooked up directly to the positive and negative of the battery (well from memory to the bus bar) and the heat sink itself doesn't require an earth from memory as you can see from the differences in the two regulator diagrams.
  5. danny_galaga
    It's pretty much ready to fly, the paperwork is taking forever. Here is what $900 odd dollars worth of weighing looks like 😄
  6. danny_galaga
    Agree. In this case we are talking about the CARR5115 regulator.
  7. danny_galaga
    You don't need to ground the case per se as there is a negative lead. I hadn't given that much thought as mine is in a new build so I wired it accordingly. Good question!
  8. danny_galaga
    Its a friggin nuisance. Like I say, the same picture posted on FB will be the right way around. I've lost interest in figuring out why. I'm finding I'm losing interest in a lot of things nowadays, particularly modern things that should just work. Aha. Just tried an experiment. I just did the slightest edit (cropped it a smidge) on the picture and saved it. Didn't rotate it. It now posts the right way around. Editing it seems to change some mysterious Android -y info that turns it around on this forum.
  9. danny_galaga
    I have a picture of my first CL model. Very grainy 110 film, taken by a 12 year old so not the best 😄 You'll need to look carefully, it's behind the cats 😄. I'm.sure I took a closeup too, will have to do some more digging. I've decided when I build the K K Phantom, I'll paint it to resemble as much as I can my Aeroflyte Cherokee. I can do much better paint jobs nowadays, but it will be a homage to Dad and 12 yo me 😊 Edit: I rotated the picture. Murphy's Law means I'll rotate it 3 ways before I get it right, so live with it 😁
  10. danny_galaga
    I can't tell where their control line circles are. Took a bit of doing but heres the satellite views of the brissie CL club. Second pic shows the whole lease. That other part is what they sub lease to the dog club. The whole situation is a breath of fresh air from a council.
  11. danny_galaga
    Damn, that's nearly as dense as me 😄
  12. danny_galaga
    Um, probably getting a bit off track there spaceman. But yes it's mostly glow engines, the occasional diesel and some guys are messing with electric. The guys that got this club going some really good arrangements. The field is ex rubbish dump, so no building on it for the foreseeable future. It's also located in an industrial area so no problems with noise. It's also pretty close to Archerfield so no radio controlled models allowed. They have three circles, which is a pretty rare thing nowadays. They have such a large lease, they are subleasing the unused half to a dog club that does that 'chasing things on a wire and pulleys' thing. I call them control line dogs 😄 The dogs don't seem to mind the noise.
  13. danny_galaga
    Eg, a millilitre of mercury compared to a millilitre of air. And put another way, what volume does a gram of mercury occupy, compared to a gram of air.
  14. danny_galaga
    That's quite neat 🙂. Mine just has green rectangles, but then again it's free software so I can't complain about that.
  15. danny_galaga
    Interestingly, the don't seem to be doing combat. They do seem to be doing a club speed class. Every club does their own thing. The idea is everyone builds the same plane, engines are standard. The class they devised is right up my alley. They used a modified plan of the Keil Kraft Phantom, which was originally a trainer from the 1940's. And run relatively modern standard .15 sized engines instead of 1940's .10 sized. I still have my OS .15 that dad bought me for my 12th birthday. It came with an Aeroflyte Cherokee. Model is long gone of course, but this club class racer would be a lovely use of my old engine 😊 Photos at the bottom of this link are from one of the planes at the club. Actually the same guy that made that aerobatic model . http://outerzone.co.uk/plan_details.asp?ID=1397
  16. danny_galaga
    Australian design from 1967. Has a more modern Ukrainian engine in it. I think maybe a .60
  17. danny_galaga
    That's one of the few positives of living near a flight path.I see all the traffic coming in to brissie airport from my place. I'm not sure if I'm ever going to fly again so at least I can use this for plane spotting 🙂
  18. danny_galaga
    Oh, it's picking up flights now. But still gives me the same warning 🤔
  19. danny_galaga
    Thought I'd watch riverfire from home on my tablet, since who knows when I'll actually use this for navigating 😄 But it's been so long, I can't remember how to make it work. It used to be fairly automatic. Any ideas? Dunno if I'll get this sorted out in time. But theres always riverfire 2025...
  20. danny_galaga
    😲 Amazing it stayed in place. I'm guessing the carrier went straight down rather than sliding in
  21. danny_galaga
    Whats the launch speed of a Corsair? Maybe 200 km/h? Barrel rolling into the drink at 200 km/h. Dunno. You'd cross your fingers for him, but...
  22. danny_galaga
    He probably died on impact 😔
  23. danny_galaga
    Only happens on android. It never seems to matter what I do in the editor, it always ends up sideways or upside down 😄. The exact same picture will appear the right way around on FB and other forums. Anyway, nice line-up eh?
  24. danny_galaga
    Thanks. This forum and one other I'm in always put my pics sideways. I gave up bothering trying to bend to their wills ages ago 😄
  25. danny_galaga
    I've gone a couple of times now. They have a fantastic venue. 3 circles. I'm going to join. My struggles with my stupid ultralight kit have left me hankering for something thats actually fun to do 🙂
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