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spenaroo

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Everything posted by spenaroo

  1. spenaroo
    just finished reading the report, this was my takeaway: how much importance was put on the ground crew information relayed to the pilots? I didnt quote it but further in the report it talks about them instructing the pilots via hand signals on the length of the flight.
  2. spenaroo
    was talking with a friend on the weekend of the number of aircraft I have had, turn in-front of my path while I'm in the circuit at the airfield I fly from. one taking off with no radio calls. and the difficulty I have in keeping situational awareness..... this friend of mine instructs with Asian airlines students. He then let slip that the operation he is with have banned it as a destination for training flights - (still allow personal hire and fly there) for the same reasons I have difficulties with. I wonder if its a similar situation here, how many other operators avoid the area these helicopters operated for similar reasons. how many of us take note of jump planes and their frequent cycles... then look at the tempo of these 5 minute flights, from effectively 6(?) active runways
  3. spenaroo
    WB-57F there is 3 operated by NASA, I think they look like something out of star-wars with the bigger engines.
  4. spenaroo
    Oh fun fact. Harley-Davidonson batteries are FAA certified. Always amused me, but they over engineered the batteries due to the vibration and heat of the big twins. Can literally drill into the battery without anything leaking. The terminals are lead, so if it short circuits to the frame or seat it just melts the terminal. When I was working for them there was nothing on the market that had higher CCA or lasted longer. Guys were regularly getting 7 years from them. Had a few come in with 9+, only time in my experience in the bike industry the genuine factory batteries were stocked, didn't even bother keeping an aftermarket alternative
  5. spenaroo
    well yeah, note they need a plastic spacer to replace the bigger sizes. literally a battery designed to meet the minimum specs for the widest range
  6. spenaroo
    its a Mottobatt, replace it. Id know that yellow battery casing anywhere. I've used them in my motorcycles because they are cheap. but they are not the same quality as a Yuasa. Pretty much every motorcycle dealer stocks Motobatt because they have multiple fitments. (4 terminals) greatly reduced number of types we needed to keep (form memory 24 different motobatt sizes, replaced 120 standard sizes). and importantly was a good selling price. if they last longer then 12 months you'll probably get 3-5 years from it. sitting around seems to be what kills this brand the most. it drops a cell, so will still show 12v, but wont take any load.
  7. spenaroo
    Isnt that why there is a whole community of medical professional's, set-up for pilots with mental illness in the USA to be treated, anonymously so it doesn't get reported.
  8. spenaroo
    thrust vectoring did come to mind. but the idea of a roof mounted engine pod that swivels amuses me. wouldn't look to dissimilar to existing seaplane design's. imagine it would help with crosswinds oh could link it to the throttle too, no need for more right rudder
  9. spenaroo
    How many young teens/adults who wrap a car around a tree/telephone pole have been done for manslaughter over killed passengers? hell it even has its own term Vehicular manslaughter I don't see the difference just because its an aircraft.
  10. spenaroo
    yeah, used mostly in low speed, high thrust applications. the density means that they have a large drag at higher speeds. so question. with outboards, and azimuth pods being talked about. is there any aircraft steered by changing the prop position?
  11. spenaroo
    Which also brings up a good point, there already exists shrouded props
  12. spenaroo
    It is used in ships and sailing vessels
  13. spenaroo
    Maybe.... But they were comparing a 5k aftermarket prop, to a $300 standard prop. not apples to apples. be interesting to see how it performs against an equivalent aftermarket prop. was the first performance change we did on Jet-skis. everyone knew going to an aftermarket stainless, multi pitch prop gave a proven performance boost all-round over the stock items. Think of it like testing a composite prop, compared to a wooden prop on a Jabiru. we all know there is a performance advantage to changing - but plenty still use the wooden option because its good enough. but using the wooden prop as a benchmark for a new performance prop is pretty silly - except if you want to the big percentage increases for marketing.
  14. spenaroo
    they fail my basic sniff test.... Is it used in racing? if the race teams looking for any advantage without care for the budget aren't using it... then its probably marketing hype
  15. spenaroo
  16. spenaroo
    I think that is a little outdated, pretty much every motorcycle manufacturer I worked for had a supported product life span of 10 years. all reduced down to in the 2010's. realistically after about 5 years it started to be questionable, especially anything out of the ordinary - often waiting till they had a big enough back-order list before they would manufacture the part. and they didn't scrap the parts, they would sell them in a bulk lot to interested parties. there are specialist company's that purchase and distribute NOS this is the company I know Harley uses, looks like Boeing does too https://www.vpartsinc.com/aviation
  17. spenaroo
    that's interesting, as it fits with my mentality. I am terrified of heights. whether it be tall stairs or windows in high rises. send my mind into panic. don't dare stand near a ledge But I am mostly fine about flying, occasionally the fear creeps in when thinking about consequences of sudden failures etc... but mostly its a meditative thing. always found it difficult to explain the disconnect, whether its because my whole focus is on the present actions, knowledge of the physics. or the different setting being in the cage (one of these days ill have to try an open cockpit)
  18. spenaroo
    so have to renew my membership and it gives 3 options. 12 months, 2 years, 3 years. all fairly standard but gets interesting when you look at the cost breakdown. 12 months $285 2 years $559 ($11 saving) 3 years $840 ($15 saving) doesn't seem to be much incentive to go for the 3 years....
  19. spenaroo
    Ive been taught all of it at different points. the use ground effect and zoom climb over the obstacle for the end of the runway at hot days. rolling entry into the runway... watching the speed not to tip or slide. full brakes, full throttle release and go. never been taught that one is always better then the other. like a slip or flaps to adjust height on final. its multiple tools to use as comfortable
  20. spenaroo
    im wondering if everything is partially right. and a fuel selector was the issue. happened to pilots before. gives both fuel in one tank to drain, but run dry in the other with nothing but air. pilot too low to run through the full checks and committed to the landing instead of trouble shooting
  21. spenaroo
    ...... Have you bought parts to rebuild a car or motorcycle recently? that's a pretty reasonable cost for OEM piston rings.
  22. spenaroo
    So basically its wing warping without the actual wing changing shape. using the same idea as blown flaps
  23. spenaroo
    and that's why insurance basically writes off any boat or ski that is sunk instantly. they have to guarantee for the life of the repair
  24. spenaroo
    all of this stuff is only really as good as the access available. seen plenty of spark plugs corroded into the heads of ski's because the boot/cap in the well prevents it from properly getting treated when cleaned. same with the pulleys on supercharger belts - hard to get to so commonly corrode and seize. despite owners using all the correct products and washings. by the same token I know of sunk ski's that have been revived. but they are usually 2 stroke stand-ups. so I believe engines were stripped down and soaked.
  25. spenaroo
    yeah there is a few products I remember from the jet-skis lanolin spray before use, and salt-away after use
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