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danny_galaga

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Posts posted by danny_galaga

    Looking for a tiny VSI

    in Instruments, Radios and Electronics

    Posted

    5 hours ago, skippydiesel said:

    Strange for sure - we, in Australian aviation, have this weirdly mixed metric/imperial measuring system - makes no sense at all and although we get used to it eventually, it makes for an unnecessary complication.

     

     

    Yeah just giving you a hard time. I'm quite the metric advocate myself. Just been so long since I even looked at my instrument panel (it's in a cupboard right now) that I couldn't think of how the sizes worked. For sure now I think of it the smaller ones are 57 and 53. They come from Spain

    Looking for a tiny VSI

    in Instruments, Radios and Electronics

    Posted · Edited by danny_galaga

    2 hours ago, AlanB said:

    How tiny?

    http://www.paraoz.com.au/mini-vario.html

    37mmx37mm. Has analogue and digital vsi display as well as altimeter. 

    Thankyou so much! That seems perfect! When I get home I'm going to see where it can go on the instrument panel else I just wear it instead of a watch 😎

     

    And as a bonus it also does altitude so it can be a backup for my main instrument

    Looking for a tiny VSI

    in Instruments, Radios and Electronics

    Posted · Edited by danny_galaga

    31 minutes ago, onetrack said:

    Subsonic - The unit you linked to has no dimensions listed - but checking the details on the Display Unit shows it is "4 inches". I'm presuming that is the width, it appears the height is not listed.

     

    Danny - Have you considered a Radiant unit? They fit in a standard 2-1/4" instrument hole (57mm). Is there some highly important reason you need the unit smaller than 2-1/4"?

     

    https://radiantinstruments.com/search.php?Search=&search_query=vsi

    [quote] I don't care that much about a VSI but if there's something tiny I'll squeeze it in somewhere 😄 [/quote]

     

    Yes radiant caught my eye early in the build but in the end it meant too many digital inputs. And they seem to have gone to ground after the tragic factory fire. So I have a mix of mechanical and digital inputs instruments. Going to check out subsonics link. Might be the go

    Rotax 912 pricing

    in Engines and Props

    Posted · Edited by danny_galaga

    14 hours ago, skippydiesel said:

    Don't want to get /start a debate - but as I said no real competition 😊

    Maybe they can split the factory into two companies so you have your choice of Rotax engines *shrugs*

     

     

    Rotax 912 pricing

    in Engines and Props

    Posted

    There are a number of competitors to the Rotax 912 now. Jabiru and a Belgian company (name escapes me) to name two. Therefore there is competition and therefore pressure on Rotax to keep their pencil sharp. Buy whichever motor takes your fancy.

    Rotax 912 pricing

    in Engines and Props

    Posted

    On 09/11/2020 at 8:06 PM, skippydiesel said:

    Friend - your naivety is breathtaking to think that somehow the market will dictate in all situations. Commercial history is full of suppliers that dictate retail price (check out De Beers) - you just have to have a commodity that is sufficiently in demand that the retailers will agree to the suppliers terms.

    Buddy,

     

    We are almost saying the same thing. Just that what you perceive as sinister, I perceive as just normal business. Not everything in the world is a conspiracy...

    • Agree 1

    Rotax 912 pricing

    in Engines and Props

    Posted · Edited by danny_galaga

    28 minutes ago, skippydiesel said:

    Can if the supplier has a monopoly - Rotax 912/914 & now 915 have no real competition - at least in my mind - being unique in the market place, with partially  liquid cooled geared & muffled engines.

     

    Lycombing & Continental on the other hand are in competition over most of their range and at the lower end of the market competing with a host of wonabee's. There are also a number of uncertified competitors to LyCon in the 150-250 hp (a guess) range

    Nope. The manufacturer has made their money. Whatever someone wants to retail it at is another matter. A retailer can sell it under the RRP if they want, or even below cost, or give them away. What you are saying is that all these disparate sources, in unrelated regions around the world are for some bizarre reason colluding on the retail price of an engine. To what end? If there is one supplier magnitudes larger than the rest (and I bet there is) then why would they agree to fixing a price? They would just undercut everyone else and rely on higher turnover.

    • Agree 1

    Rotax 912 pricing

    in Engines and Props

    Posted

    On 28/08/2020 at 2:34 PM, skippydiesel said:

    Na! Na! - not what I was getting at at all.

     

    Cost out a Rotax 912 ULS in the USA, Europe, Australia (Floods) basic all the same price (I allowed for exchange rate, GST, etc) - ergo price is rigged by Rotax. Open market/ competition would result in greater variation.

     

    Kyle - I stand to be corrected but aviation products from USA & Europe do not attract Au import duty (other than handling/processing ) only GST (which is bad enough)

    Manufacturers always set a RRP. The retailer can then either follow that or charge whatever they like. Charge too much and the customer goes to the guy who followed the RRP. You can't say it's 'rigged' unless there are say two MANUFACTURERS colluding to fix a price. 

    Electrical system design

    in Instruments, Radios and Electronics

    Posted · Edited by danny_galaga

    On 8/30/2020 at 4:15 PM, Yenn said:

    Downunder. Is the Rotax alternator really a generator. I don't run a Rotax but I thought it produced AC current which was converted to DC, rather than DC current.

    Usually generators have commutators and alternators have slip rings. Which is it.

    This. The manual might call it a generator but it is definitely an alternator. The AC current as far as I know gets rectified in the combo regulator/rectifier.

     

    In a generator, the commutator acts as a 'rectifier' . 

    • Agree 1

    Rotax 912uls versus Jabiru 80hp

    in Engines and Props

    Posted

    Retail fuel profit itself is quite low compared to other products. When I worked at a servo, the margin was maybe 5% over wholesale. That's ludicrously low. To compare, a lot of things you sell on shop shelves would have 50-100 % mark up over wholesale. Which of course is where the servo makes its money. But it is incorrect to say fuel itself is a good earner

    Rotax 912uls versus Jabiru 80hp

    in Engines and Props

    Posted

    The Bushcat must be super draggy. My ATEC Zephyr, powered by the Rotax 912ULS, has a 30 knot stall (not much higher than the BC) would be doing about 125 knots at 18L/hr. My usual cruise (1 pilot) 100-110 knots uses 12.5 - 14 L/hr. At 80 knots or lower I am using 8l/h.

     

    Bit like saying your Lotus Esprit uses a lot less fuel than my Toyota Land cruiser. Bushcat is fairly fast for a rag and tube bush plane, maybe 90 knts or so but it's stall is a bit high for some reason.

     

    Shajen, have you flown a Bushcat yet? It is very roomy and flies nicely. The flap handle is in a weird position. I am building a kit, right now I couldn't recommend building one though, it has not been fun! But if you don't want to build one, you're golden.

    • Like 1
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