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  1. rb1957

    what's mine is mine, what's yours is mine ?

    from Flight today ... "De Havilland eyes restarting Sherpa and Dash 8 production as DHC-515 programme progresses ... The company’s vice-president Neil Sweeney says the Calgary firm is considering bringing back its DHC-8 regional airliner and its Shorts Sherpa military transport." "it's Shorts...
  2. rb1957

    Future Fighters ?

    It'll be interesting to see what happens next with 6th generation fighters. It'll be interesting to see if European (and other) countries take up other options (other than F35) for near term 5th generation fighters ... but probably too much sunk into the F35 to change now. Maybe some countries...
  3. rb1957

    what is old is new again ...

    From Flight (a couple days ago) ... German researchers claim aerodynamic and fuel-burn benefits from predictive load-alleviation This was tried some time ago, in like the 90s. Yes, it may save fuel costs (back then I think it was intended to smooth out gust loads for passenger comfort) ...
  4. rb1957

    Boeing ... WTF ?

    From Flight today ... USAF pauses KC-46 deliveries over structural cracks 3 Mar 2025 The US Air Force, which operates 89 of the 767-derived tankers, has paused delivery of new aircraft after the discovery of structural cracks in two recently assembled jets that Boeing was preparing to turn...
  5. rb1957

    GUlfstream G650 ?

    From Flight ... Gulfstream produces final G650 12 Feb 2025 The Savannah-based manufacturing on 12 February said it has produced the last of the type, closing a chapter on an aircraft that helped create the ultra-long-range, large-cabin business jet segment. Can anyone closer to the source...
  6. rb1957

    A little sanity ...

    from flight (on Friday) ... Airbus pushes back ZEROe timeline and ditches A380 fuel cell flight-test plan 8 Feb 2025 Airbus has delayed the service-entry target for a hydrogen-powered aircraft developed under its ZEROe project by up to 10 years and axed plans to flight-test hydrogen propulsion...
  7. rb1957

    not enough propellers ?

    The latest ... 7 props !? ... sigh
  8. rb1957

    Beaded Hi-Lites ??

    Ok, probably a question for Will ... We've got "beaded Hi-lites" HSTB-409 to install. We're looking at one and they look just like a standard Hi-Lite ?? We're working on a GIV and these are in the wing skin (ie wet tank boundary) and actually need an oversize. Any ideas anyone ? Please not...
  9. rb1957

    what happened to "my groups" ? what happened to the "Round Table" ??

    apparently I have to write stuff, but the subject line says it all ... what happened to "my groups" ? where is the "Round Table" ? ... found it !
  10. rb1957

    when will the madness end ?

    From flight today ... IATA urges government action as it forecasts $128bn annual net-zero spend 24 Sep 2024 Airline association IATA forecasts an average of $128 billion in annual capital expenditure will be needed for the airline industry to reach net-zero emissions by 2050. so the airline...
  11. rb1957

    Alice pt3 ...

    from Flight today ... "Certification of Eviation’s all-electric Alice pushes toward end of decade 4 Sep 2024 Certification of Eviation’s Alice commuter appears more distant than the company had previously hoped." truer words rarely spoken ... "Wir hoffen, dass dieses Mal alles gut gehen...
  12. rb1957

    WOW !! ... from Flight today ...

    "Middle Eastern carrier Emirates is to purchase five more Airbus A380s from an investment company once their lease period expires later this year. Emirates is to pay $40 million for each aircraft," A "slightly used" (off lease) A380 is worth $40M ??!! "Hoffen wir mal, dass alles gut geht !"...
  13. rb1957

    from Flight today ...

    "Air NZ drops 2030 climate targets, raising questions about Dash 8-300 replacement 29 Jul 2024 Air New Zealand has axed its interim climate targets, stating that measures needed to meet the target were unaffordable and not readily available." The first of many ? "Hoffen wir mal, dass alles...
  14. rb1957

    now that's putting faith in the guys ...

    from Flight today ... "Secretary of the US Air Force Frank Kendall flew in the lead seat of the service’s X-62A Variable In-flight Simulation Test Aircraft (VISTA), a specially modified Lockheed Martin F-16 fighter being used to test and develop artificial intelligence and autonomy...
  15. rb1957

    Electric powerplants ...

    From Flight ... "Harbour Air plans to buy 50 Magnix propulsion systems for envisioned all-electric fleet". Harbour Air, out of Vancouver, have been trailing an electric powered Beaver for some time. Seems there's enough of a commercial case that they want to expand their operation. I don't...
  16. rb1957

    when will the lunacy end ?

    Reported in Flight, from a prestigious establishment as Cranfield, the latest in fuel cell engine design ... At first I thought those "enormous" red things were just a picture, highlighting some internal "gubbings" ... but no ... Surely, people can see the insanity of this design ? The...
  17. rb1957

    "jump system" during bridge building ?

    https://www.youtube.com/watch?v=o6i1Kdfz-9E at 1minute mark, the commentator says "jump system removed" (as part of progress made). Is this some temporary support used during building (and now things have advanced enough that it can support it's own weight it is no longer needed) ? "Hoffen...
  18. rb1957

    array equations ?

    A question from a pretty much non-user based on a discussion in another forum ... want to solve Ra = (k*a)*(L-a) where L and k are scalar and "a" is an array ... and so Ra is an array presumably Ra needs to be defined as an array ? presumably MathCad can understand b = k*a where k is scalar...
  19. rb1957

    opening links (to other workbooks) ?

    ok, dumba$$ I know, but ... I've created a bunch of links to other workbooks within the same folder, and pasted into a s/sht (did this maybe a year ago). Now I'm looking at the s/sht (with the links pasted in it). I can see the pasted link (in the cell contents). But how do I open that link...
  20. rb1957

    Climate science ... settled ?

    is there any (other) field where the science is "settled" ? Is there any field of scientific investigation where new results don't answer some questions, but raise new ones ? where we learn something new ? The answer is of course not. We live in a world where science is expected to answer...

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