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Everything posted by Kyle Communications
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Weather stations these days.
Kyle Communications replied to flying dog's topic in Other Countries Discussion
You need to move up here to gods own country..we have about a week of 5 deg or 7 deg then its warmer every day :)..just need aircon for summer 🙂 -
Replacement CDI for Rotax..new throttle system for Rotax, modified flap brackets for Savannahs....hahahah oh thats my spare time. We manufacture a Salt Water pool chlorinator. Well a couple of differnet models because we are a OEM we rebadge the unit for 7 different companies and of course have our own brand...all the big companies use our unit now as we have the best quality and warranty. Our failure rate is under 0.5% most others are between 30 and 40%..this is why all the big companies now use ours We make them out at Woodford about 25km N/W of Caboolture and employ 13 people. We also use the maximum amount of locally made products we can. For exmple today we just had 15km of the cable we use to attach the cell it is a multicore cable with 2 of 6mm main DC cable and 4 of 1.5mm cables. It is all made in Victoria. All our plastics are injection molded up at the sunshine coast. Connectors are all sourced from local suppliers. We only buy in from another country what we can not get done here at a reasonable price. Sometimes its actually a bit more expensive here but we use the local supplyer Sorry its a bit off topic
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You are spot on Bob...I have had a couple of companies try to "copy" my designs...Well exactly as you say because they dont understand the theory behind the design or the selection of parts and placement they come up with something that sort of works but doesnt. The theory in my designs requires a lot of AC switching theory and transformer conduction and quite a bit of special ancillory component design. In this industry they all seem to copy and just perpetuate all the mistakes. No one yet has mangaged to actually even get close. No one can seem to innovate they all copy all their own mistakes..no one seems to have ever started with a clean sheet like I did. The design has been evolving over the past 7 years but it did take around a year of development to get it right
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Interesting engine developments
Kyle Communications replied to Kyle Communications's topic in Engines and Props
https://astronaerospace.com/ -
Interesting engine developments
Kyle Communications replied to Kyle Communications's topic in Engines and Props
Appears to be still on the drawing board but now being backed and patents done...here is a link I found https://www.whichcar.com.au/features/how-the-astron-omega-1-engine-is-reviving-the-rotary-engine-concept -
Interesting engine developments
Kyle Communications replied to Kyle Communications's topic in Engines and Props
I dont know if its running..I stumbled accross it on my youtube feed I will see if there is anything or its a concept engine -
I spend half of my time at work currently trying to source particular components now. Some are literally unobtainium now...lead times are anywhere from 12 month to 18 months delivery. The majority of our electronic components are infact made in China or Asia. We use Microchip processors and also some other Microchip parts like RTC (real time clock) chips. These are actually made in a Microchip plant in Thailand. The chinese have difficulty getting them now so we organise these chips and get them freighted here to us then we send them on to our manufacturer in China. Most of the passive components are Yageo or kemet which are high quality passives but also made either in China or Thailand by those major companies. There are quite a few chips like regulators and hall effects transducers and capacitive touch and temperature sensors we are using now that are chinese made in chinese factories because we have not been able to source the originals we were using due to the world wide chip shortages. These Chinese made versions are excellent and working perfectly....to give you a example we used previously a Texas Instruments temperature sensor but we went to the chinese version and the failure rate is actually better than the TI version by about 70% The failure rate is super small anyway like only 5 chips in 30,000 which is very good in the time frame. Our heatsinks are all made in China as no one in australia does metal injecting anymore...the company we use for that is also excellent we use 15,000 a year plus and maybe 10 out of those maybe rejected. Transformers we used to make ourselves here but now we use a chinese company who makes them to our design parameters...for less than half the price we can make them for..we had to go through 3 manufacturers to find one that made them to a high standard every time..that company is also excellent. So the argument that all chinese manufactured stuff is crap is just not true at all...we do pay a bit more for this quality but it is certainly there and repeatable. We make and sell the most popular unit in the country and sales just keep increasing literally every day and more companies are getting out unit..we rebadge the same unit for 7 different companies. The only way to know if this copy rotax is any good will be time and numbers. Until then no one will know
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Flyboy is correct. You get what you pay for in China. I work for a australian manufacturer and we make our product here. We source our parts from many places around the world. All of our cell material comes from the USA as it is the best..there is chinese stuff but we donr use it. The base titanium the americans use to make their product comes from China though. The titanium is is good and no issues..the coatings that are heated onto it is done by the USA company. Our electronics are made by by a chinese company and we can get them made eslewhere in China for a cheaper price but we use a company that actually manufactures LCD displays..they also do complete component sourcing and assembly . They only use genuine parts supplyers not dodgy ones although twice now they have had some issues with counterfiet parts. The electronics company there have been devastated that this happened and have taken measure of sacking their suppliers that did this. Our failure rate on our product is less than 0.5%...our competitors have a average failure rate of 40% or more. This is why you get what you pay for. Yes you can get very good equipment from China if you know what you are doing and are prepared to pay the money. This is why Iphones etc are a lot more expensive than the others. As far as the copy Rotax goes well the jury is out as I know there are quite a few out there operating now but I havent heard anything bad yet about them at all but of course longevity of the product is yet to be seen.
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Caboolture will soon have Mogas available for anyone. Avgas run by Viva has been onsite for 15 years or more. We hope to have it all installed by August. The club members over whelmingly want it. The cost is pretty staggering though but it will become a revenue stream for the club directed to airfield maint...also the price will be the same or a little better than local garage pricing. The advantage is the fuel will be super clean..not like you get from the local servo. It is a fully speced aviation grade tank with all the right stuff internally for water peel off and super filtering and also I think it draws about 900mm from above the bottom of the tank it has with CC facilites and will be available 24/7. We expect a lot of flyins to get their fuel as well as the local members. It has been a mamoth exercise with a year in the planning. There is a lot of hoops to jump through. If you get Viva or IOR to just drop and go and look after it themselves then fuel pricing is not that good at all. Managing it yourself as a club by getting the right equipment first is a much better way to go Mark
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5800 rpm is mainly for CSU type operation. Ground adjustable should be set for 5500 WOT. If you set a ground adjustable one at 5800 when you throttle back to cruise rpm you are now on the back side of the thrust curve from the prop..less pitch is on at say 5000 rpm if you set max rpm WOT at 5500 then of course you have more pitch on at 5000 rpm so the aircraft will cruise faster. Obviously for takeoff the 5500 setting for a gound adjustable in theory will produce slightly less takeoff performance that the one set at 5800 rpm. No different to an outboard engine prop. Ski boats are usually a finer pitch to get the skier out of the water faster but high speed skiers have more pitch on the boat prop. The other thing to think about is those throttle springs on the rotax. Set your engine at 5800 WOT then if the spring breaks...and that is not uncommon then you have 5 mins or so before the engine goes bang or you turn it off and find somewhere to land . If you set the prop for 5500 WOT in the air then if the spings break well then you have a good level of margin to get where you need to go and just turn the engine off when you get close to the field This isnt specific to a particular type or brand of prop it is just a "makes sense" for the engine operation. I had my Bolly set for 5500 rpm at WOT for the 10 years I was flying the girlfriend. I was told to do this by a Rotax engine guy who also is a racecar engine builder for his profession. He is also a flying instructor and has been for a long time. I took his advice more than 10 years ago about this. It also happens that this is how Eprop have designed their props to operate. The new Glorious CSU inflight adjustable prop is set at the 5800 WOT because it is a CSU type and you can set whatever pitch you want which of course is the ideal way but there is a big difference between 3k and 12k Mark
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My Savannah S model rebuild Blog
Kyle Communications replied to Kyle Communications's topic in Savannah
Mothers Day Busy day 🙂 Cooked the boss and her mothers breakfast this morning...sanded the lower cowl ready for some fine filler...that being all done preped the bits for the throttle kits so I can get some done. Went over to Danny's place and turned the tubes to size...used a different tool tip..circular ones. Works better on the stainless and doesnt distort the tube so I have ordered a few of these tips so I can do the rest of the tubes. Got 5 units tig'd up just have to pickle them and will set them up to make sure all is correct and I think I will be ready for production. I need to be retired...its been a big few days 🙂 -
"Who" or "What" is this?
Kyle Communications replied to flying dog's topic in AUS/NZ General Discussion
It dissapeared behind some clouds...after quite a few minutes of watching it. -
"Who" or "What" is this?
Kyle Communications replied to flying dog's topic in AUS/NZ General Discussion
My UAP sighting last week -
E-Props ...who has first hand experience with these
Kyle Communications replied to eightyknots's topic in Engines and Props
Lots of yanks cruise at 5400 and 5500...I never push mine that hard except on takeoff. I usually cruise mostly at 5000 but sometime 5200 -
My Savannah S model rebuild Blog
Kyle Communications replied to Kyle Communications's topic in Savannah
Mike I am working as fast as the resin will allow me 🙂 Glassed the joins on the outside and inside for the strength and also put some core mat into the flat bottom to strengthen it up. pretty happy with the finish by using peel ply (nylon) the purple stuff in the above pics , over the areas and squeegying it..when you pull off the peel ply when the resin has set properly and it leaves a great surface and of course gets off excess resin. Need to trim it all up now as well. Will let it go off more and do some initial sanding tonight hopefully then hit it with the fine filler tomorrow morning. Let it dry as I am going over to Dannys place in the morning to get some of the new throttle system kits tig welded so I can get them away. Got people chasing me like crazy for them. Just havent had enough time to spread across so many projects 😞 -
My Savannah S model rebuild Blog
Kyle Communications replied to Kyle Communications's topic in Savannah
With any luck this maybe finished by the end of the weekend. Sanded the filler to shape over the joins and now layed some nice twill weave glass over the outside joins all the way. peel ply on so will see what its like tomorrow morning..might need to get the heat lamps on it as I want to get that peelply off later in the day. The inside join areas have been filled and I still have to glass that but can do that first up in the morning and the heat lamps will help that as well so all should be fine. Will need to put some coremat on the inside bottom as its a bit flexible also maybe on the sides...I will decide after all the joins are done