Jump to content

onetrack

First Class Member
 View Profile  See their activity

  • Posts

    6,824

  • Joined

  • Last visited

  • Days Won

    83

 Content Type 

Everything posted by onetrack

  1. onetrack
    Tempest produce an "aviation" oil filter to fit the Rotax, and it's being sold by numerous aircraft parts suppliers. It doesn't appear to be any cheaper than the genuine OEM, from what I can find. More importantly, Rotax do not approve the fitment of the Tempest oil filter - nor any other aftermarket filter. The link to the Rotax Service Letter is at the bottom, and Page 7 covers the reasons why non-genuine filters don't meet with Rotax approval. The only way you can compare oil filters is by cutting them in half, longitudinally. https://www.rotax-owner.com/en/912-914-technical-questions/9725-tempest-oil-filter_1 https://legacy.rotaxowner.com/si_tb_info/serviceletter/sl-912-014-r6.pdf
  2. onetrack
    ......was a bit smarter than that, and wasn't going to be the swim test dummy for any fly-in-by-night Chinese operation. "I tell you what", said Cappy thoughtfully. "You go in for swim first, and when you come back with.......
  3. onetrack
    I would be very surprised to find that the genuine Rotax 912 oil filter was identical to any other automotive filter. This is aircraft engines we're talking about, and many Rotax engines fly in certified aircraft. If the genuine Rotax 912 oil filter didn't have extra QC checks and heavier metal in the main housing, I would be very surprised indeed. A screw-on oil filter that split the housing would ruin your whole day, and perhaps your engine and your aircraft if it blew apart, at even modest altitude. So, if I owned a Rotax 912, there's no way I'd be using a standard screw-on automotive oil filter on it. Even if a genuine Rotax filter split, you'd at least get a chance of a warranty claim - I wouldn't like to see your chances of claiming for a new Rotax engine if your el-cheapo automotive filter split open, they'd promptly claim it was never designed for aircraft engine use.
  4. onetrack
    Filter paper degrades over a period of time, just the same as anything made from paper. They have to set a reasonable time period for warranty, based on envisaged worst storage conditions. https://www.gopurepower.com/blog/do-oil-filters-expire/#:~:text=To Be Safe%2C Throw Away Your Old Oil Filter&text=The paper filter media inside,porous to filter the oil.
  5. onetrack
    .....the additional necessary lung transplants. Of course, I got that info off the JH site, where they also state all the side-benefits of asbestos ingestion." Cappy only found out about the asbestos in his lagoon, after he had the fish from it tested for mercury. Not only were the mercury levels off the scale, the chemists also found high levels of arsenic, cadmium, and various other toxic compounds including PCB. When questioned over the results, Cappy replied, "Well, I did give approval to the local 'Ndrangheta bosses to dump some surplus fill on the edge of the lagoon. How was I to know it was untreatable toxic waste, that was supposed to be.........?
  6. onetrack
    That dreadful American gravy is usually made from flour and pig fat, and sometimes leftover American sausages. I cannot fathom the American love of a litre of gravy, over nearly everything they eat!
  7. onetrack
    As a matter of interest, you will find out when you have a filter failure, that companies will not guarantee their filters any longer than 12 mths from the date of manufacture. I found this out the hard way after an expensive engine failure caused by fine dust going straight through an air filter, thereby "dusting" the engine. It was an OEM filter. Upon complaining about the filters performance, and wanting some engine repair compensation, I was asked for the filter manufacture date, and when I advised it was around 5 years old, my claim for compensation was simply rejected on the spot, as the filter warranty period had expired.
  8. onetrack
    All I can think of, is how tiring it would be after a relatively short period, from holding your head right back from a prone position. I would've thought a chin support would be pretty necessary. Rudder authority looks a bit suss, too.
  9. onetrack
    It's only a little jet. You were thinking of an RB211, perhaps?
  10. onetrack
    ....time to call in Turbine Health Care Inc, who had doctors on their payroll who were specialists in hairball removal. They had all previously been vets, of course. However, upon attendance by the said Docs to the Scotsmen involved, it was then found that they were refusing to pay the specified attendance fees, and they all claimed they were "skint". After much haggling, they stated that a certain generous aviation benefactor by the name of Capt Ignatious Cook of Wagga would be "picking up the tab" for the docs attendance, and to send the accounts directly to him. The hairball buildups were swiftly removed, the Scotsmen were relieved (that they didn't have to pay), and the doctors left. However, when Cappy started receiving all these strange medical bills addressed to him, he called his old mate Turbo and started yelling, "You mongrel, I thought you.............
  11. onetrack
    The Verner radials are a clever piece of work, simply utilising Honda generator heads and VW cylinders and pistons. Repairs are much cheaper, thanks to the widespread availability of bits. Of course, you're never going to have a streamlined racer with a radial, but the exhaust note and the great vintage looks must count for something! https://opposite-lock.com/topic/28513/verner-radial-engines-the-art-of-sourcing-existing-things-to-make-new-things
  12. onetrack
    If rings are worn, the piston ring grooves will be worn too. Manufacturers generally set a specification for maximum wear level on all components. In general, any level of wear that exceeds 50% of the maximum wear specification measurement means that the component should be scrapped and a new component installed. If you want new engine performance, you fit new pistons, new rings and new cylinders.
  13. onetrack
    .....people immediately became suspicious (in fact, they're eternally suspicious), as to the substitution of Rabbit fur on Turbine Drifters, instead of Cat fur, as previously specified by the manufacturer. An investigation soon found that Rabbit fur equipped Drifters had developed a severe response to sightings of foxes, and the instant a fox was sighted from a Turbine Drifter, the TD always made a major, unexpected track diversion, without any pilot inputs. This caused a great deal of consternation amongst the TD pilots, and even greater consternation at CASA HQ, as it was soon learned that this unexpected track diversion was occurring randomly, but on a level serious enough to warrant a major investigation. Unbeknowns to Turbo, CT9000 had been appointed a CASA FOI in secret, so he could report back on the Rabbit fur-Fox sighting, unexpected control response of the TD's. CT's final report, was alarming to say the least. He identified no less than 32............
  14. onetrack
    I'm not sure that you'll find satisfactory quality rings a lot cheaper than the Rotax price. The U.S. site below advertises "high quality" aftermarket rings for Rotax, but they're still AU$180, and you'll need to add freight to that figure. The confusing part is they state "complete set" (of rings) - but don't say whether it's a complete full engine set or a complete set of rings for one piston. I did note one site selling individual rings (genuine) for the Rotax 912, which I find rather strange. We used to have a local bloke supplying individual rings for pistons at one time (he's long gone), but he specialised in doing that for people who broke single rings when installing new sets. https://sideslipaviation.com/products/piston-ring-set-for-rotax-912-complete-set
  15. onetrack
    More here ...... https://baysidenews.com.au/2023/08/30/airport-neighbours-left-in-the-dark-mayor/
  16. onetrack
    .....great amusement amongst people watching the kilt-wearing Scotsmen doing this - but the hilarious part came when the Scotsmen were observed to lie down and roll on their backs, rolling from side to side, and waving their legs in the air, and making strange purring noises. However, the real concern came when the CatFur (R) covered Drifters started to roll on their backs, in alarming numbers, as well. This led to a multitude of CFI's instructing trainee pilots, "whatever you do, don't stroke the........
  17. onetrack
    The amazing part of the B707 record is that 99 of the 856 produced are still listed as "active" aircraft. The U.S. military still operate around 40 of them in various military forms such as the E-3 Sentry. https://atdb.aero/php/go.php
  18. onetrack
    ......once again, Turbine Magic Plasma Engines was formed to develop an emission-free, radiation-free, non-tree-using, green, and earth-friendly, totally radical new engine. Turbo made a presentation of his new engine at the Kingston City Hall, as Moorabbin was recognised globally as the centre of aviation creativity and inventiveness, and Turbo wanted global recognition this time, especially from Elon Musk and other major global entrepeneurs and trillionaires. Turbo outlined how this new engine he'd dreamt up was plasma-powered, and he'd got his ideas from watching the Hadron Collider in operation, plus the odd Shaun the Sheep clip, where the aliens used natty plasma-ray guns. Turbo explained how he thought, "If aliens can produce this sort of technology, why can't Moorabbin?" .... and the crowd went wild as he explained how he planned to........ (NES'ers might note how neat it is, that if you add a "c" to "radial", you get "radical" ....)
  19. onetrack
    Brazed aluminium radiators are the reason why you require nitrite-free coolant in todays world ...... https://www.chevronlubricants.com/en_us/home/learning/from-chevron/industrial-machinery/nitrited-or-nitrite-free-coolants.html One of the things I've found after long experience and many tears, is that using the coolant either manufactured by the engine manufacturer, or the brand recommended by them is vital - as only the engine manufacturer knows the entire list of metals, alloys, potential corrosion sources, and origins of potential electrolysis in their engines - whereas independent coolant manufacturers may not have this sum knowledge. Another thing to ensure is that there's no stray voltage that can utilise engines or radiators as a path to ground. Even tiny amounts of stray voltage running through your engine or radiator can create electrolysis. Thus, ensure that all necessary earth straps are fitted, and that the earth strap connection points are clean and bright.
  20. onetrack
    I've already mentioned this ZDDP problem in the 19th post on Page 1 of this thread, and got told Shell Aero Sport is the recommended oil and is presumed to have the appropriate level of ZDDP in it. I reckon either the Shell Aero Sport oil is suffering from a deficiency of ZDDP, or someone has been using another brand of oil that has inadequate ZDDP in it. The lifter/camshaft damage due to reduced levels of ZDDP is well known.
  21. onetrack
    .....decided that an AD was necessary. So a committee was formed to advise a panel that advised the communication department, that as of the immediate date, no nuclear-powered Drifters would be deemed airworthy - and any that had been flown backwards, had to immediately be flown forwards the same distance, to even up the air miles covered, and to rewind the hour meters to the correct readings. In addition, mirrors were not to be used in the operation of any Drifter - regardless of whether it was flown forwards or backwards - and most importantly, any thimbles of nuclear waste had to be logged and recorded in quadruplicate, as to their whereabouts, and the...........
  22. onetrack
    My first commercial flight ever, was on a Qantas B707, in 1970 - when I was flown to South Vietnam from Sydney to join my Engineer Unit, 17 Construction Sqdn., at Nui Dat. What a great flight that was, the days when you could walk up front and chat to the engineer looking after the engines, and get a gawk at his control panel.
  23. onetrack
    Filtered water can still contain a lot of dissolved minerals and compounds that don't filter out - but they will react with metals in engines cooling systems, and assist in electrolysis - so much better to use demineralised water.
  24. onetrack
    ......manufacturers of light recreational kit aircraft expressed great interest in one of TPNP's mini-nuclear power plants as a highly suitable replacement for polluting Rotaxes and Jabirus (oh, the pollution, the dreadful, choking pollution!). TPNP took great delight in articulating how their mini-nuclear power plants were so simple and well-built, that any backyard kit-builder (even a bunch of Tasmanians), could assemble their own TPNP power plant from a flat-pack box (Turbo was exceptionally keen to emulate Ikea, and move their cost-reduction processes into technology territory), without any fear of radiating themselves. Furthermore, the waste from these TPNP nuclear power plants was so small, an entire fleet of 150 Drifters would only generate enough nuclear waste to fill a thimble over their 50 year lifespan. "After all", said Turbo, "No-one will want to be flying a 50 yr old Drifter, especially one with a rusty nuclear power plant up front, so............
  25. onetrack
    The subtle part of "if you do a drawing you own the copyright regardless of the claims others make", is that copyright does not protect the idea/ideas or information, only the original expression of ideas or information. https://www.ag.gov.au/rights-and-protections/copyright/copyright-basics#:~
×
×
  • Create New...