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Aviation BS and Photo Thread

Discussion in 'Off-Topic Discussion' started by JB, Feb 26, 2016.

  1. Apr 7, 2021 at 11:13 AM
    #9721
    JeffRoyJenkins

    JeffRoyJenkins Essentially Non-Essential

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  2. Apr 8, 2021 at 6:39 PM
    #9722
    CFI AandP

    CFI AandP Well-Known Member

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    It isn't just the Max that is ETOPS. Many other aircraft also fly over large areas of water. There's another phrase related to this type of trip "wet foot/ dry foot". Say you're flying a LearJet to Hawaii from California. On paper it has no issue at cruise altitude making the trip, that's a dry foot print. However, a trip like that is alway planned for one of the big three emergencies. Passenger medical issue (1), Engine failure (2), or depressurization (3). #1 dictates at what point is it faster to land (sometimes called equal time point or ETP) - continue the course at altitude or turn around. Since you've planned for it, have calculated a decision point and fuel necessary for it - this is called a dry footprint. 2 & 3 will require a descent and then continue or reverse course depending on if you've reached the ETP for that type of emergency. If you don't plan on 2 or 3 happening, you'll come up short on fuel - which is called a wet foot print.

    Here's an example of #1 happening without a diversion point close enough. Depending on the circumstance, the diversion point isn't just a runway. It might determined by specific ground equipment, or medical facilities of a certain caliber.

    https://www.wsj.com/articles/american-express-ed-president-gilligan-dies-1432925490
     
  3. Apr 8, 2021 at 7:35 PM
    #9723
    VE7OSR

    VE7OSR Well-Known Member

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    Yes, i understood that this is not unique to one aircraft. I was thinking the reliability of the aircraft, its engines - their Mean Time Between Failures, ability to tolerate and continue to operate with one engine failure, redundancy in systems, and fuel range would all play into the factor of the risk of having limited 'alternate' landing places.
     
    CFI AandP likes this.
  4. Apr 8, 2021 at 9:04 PM
    #9724
    CFI AandP

    CFI AandP Well-Known Member

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    Bingo. Well, sort of. In the turbine world, either the engine runs or it doesn't. There isn't a scale of reliability as if you were comparing a Yamaha YZ250 to a Kinner K5 to a P&W R-985 to a Lycoming O-360.... Those engines each have varying characteristics, reliability and maintenance schedules. Unless just out of major maintenance, then you might dispatch the aircraft local for a flight or two before sending it out over water for several hours.

    While not ETOPS related, but another example of considerations involved when choosing alternates or diversion airports - a friend of mine used to work for an owner that chose their destination and alternate airports based on available crash fire rescue services. Their principal had specific requirements and they'd skip a satellite airport over a major, even if the satellite airport was more convenient but lacked appropriate resources.
     
  5. Apr 9, 2021 at 6:21 AM
    #9725
    trdquoc

    trdquoc Well-Known Member

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    Gulfstream you’re sitting right over the NLG compared to a 737... at least you hear the noise and know that it’s up haha.
     
    JB [OP] likes this.
  6. Apr 9, 2021 at 6:54 PM
    #9726
    Beers

    Beers Well-Known Member

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    Ha! Yeah there is ZERO question it is up with that loud CLUNK!
     
    Gunshot-6A likes this.
  7. Apr 9, 2021 at 6:57 PM
    #9727
    trdquoc

    trdquoc Well-Known Member

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    Still love me some Gulfstreams... I manage 5 of them... and they're all Part 91 Unicorns
     
    SOSHeloPilot, Hddiesel308 and JB [OP] like this.
  8. Apr 9, 2021 at 6:57 PM
    #9728
    ToyotaDriver

    ToyotaDriver Well-Known Member

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    I fly commercial every 28 days and the sound of the landing gear cycling still freaks me out.I’ll stick to helicopters that have 5000 moving parts, but fixed landing gear.
     
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  9. Apr 9, 2021 at 7:05 PM
    #9729
    trdquoc

    trdquoc Well-Known Member

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    My dad flew like 20,000+ hours in turbine helicopters... lived to tell about it... maybe even more hours... died of cancer can no longer ask him =P
     
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  10. Apr 9, 2021 at 8:34 PM
    #9730
    MatthewMay1

    MatthewMay1 I'm an amateur professional.

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    Post below beat me to it!
     
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  11. Apr 10, 2021 at 10:05 AM
    #9731
    SOSHeloPilot

    SOSHeloPilot My 1st Muscle Car

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    .
    ...^^^.. I spent most of my working years in the "emergency equipment and specialised military equipment" business.

    I can say for a fact ... that many people planned their trips around good CFR's (Crash Fire Rescue fire trucks) coupled with good crews (well known in the industry).

    Of the many companies in the CFR business .... Oshkosh was and continues to be the best and most reliable of the group.

    Rosenbauer's CFR's, while pretty, are not my favorite for dependability. Oshkosh is without a doubt the best ... NO, I did not work for Oshkosh, :)
    .
    EDIT .. While I did not work for Oshkosh or Pierce Mfg. (owned by Oshkosh) .... I did know the 2 guys who made those companies big and famous. They were older and mentored me and always offered me jobs ... but I stayed an I dependent almost all of my career in that business.

    Common sense design, PARTS & SERVICE is where Oshkosh shines.

    In smaller airports ... if your CFR is down due to a service/parts problem and they substitute a "structural fire truck" with a mini system of AFFF (Aqueous Film Forming Foam) .... you are in big trouble if you have a fire in anything larger than a 172 (my opinions here too).

    I see big airports sometimes buying fancy looking CFR's and they buy a few spare units to keep the necessary amount of units in front line service with some always in the shop.
     
    Last edited: Apr 10, 2021
    CFI AandP, Hardscrabble and Bushed like this.
  12. Apr 10, 2021 at 11:08 AM
    #9732
    SOSHeloPilot

    SOSHeloPilot My 1st Muscle Car

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    ...^^^... "Cool Beans" .. My daughter said that in the 1990's :) .. never understood what it meant o_O ... now I have the context ... :thumbsup:
     
    Bushed likes this.
  13. Apr 10, 2021 at 11:22 AM
    #9733
    Hunterdc1

    Hunterdc1 Propane and propane accessories

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    This is the Orion orbiter on top of the upper stage of SLS currently being processed at the Multi-Payload Processing Facility at Kennedy. I am very lucky to have been able to play a very small part in eventually sending this rocket to orbit.

    Nasa and multiple other entities have posted this exact photo if anyone was concerned about whether something like this should get posted...since I got blowback the last time I posted an out of cal Nasa Snap-on 6-16 inch lb torque wrench from the 60's:rolleyes: in the Tools thread.

    20210410_025115.jpg
     
    MTgirl, JB [OP], aggr0crag and 3 others like this.
  14. Apr 10, 2021 at 11:30 AM
    #9734
    crazysccrmd

    crazysccrmd Well-Known Member

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    Pretty awesome. I added bold to the important bits...we'll see if SLS actually gets off the ground at all or more than once before being cancelled.
     
  15. Apr 10, 2021 at 11:37 AM
    #9735
    Hunterdc1

    Hunterdc1 Propane and propane accessories

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    People were skeptical of Apollo and Shuttle just the same. Hell I'm skeptical until the day it leaves the pad. But Biden just requested 24.7 billion from congress for Nasa's next fiscal year, for those counting at home, that's 1.3 billion more than they received for this year.
     
    crazysccrmd likes this.
  16. Apr 11, 2021 at 6:45 AM
    #9736
    JB

    JB [OP] ....................

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  17. Apr 11, 2021 at 6:55 AM
    #9737
    I.eat.tacos

    I.eat.tacos Well-Known Member

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    Good morning too!
    20210411_065301.jpg
     
  18. Apr 11, 2021 at 6:46 PM
    #9738
    MatthewMay1

    MatthewMay1 I'm an amateur professional.

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  19. Apr 12, 2021 at 6:39 AM
    #9739
    Hddiesel308

    Hddiesel308 Well-Known Member

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    87 fuel added as needed.
    Who installed that nacelle? lol
     
    chuam and JB [OP] like this.
  20. Apr 12, 2021 at 6:43 AM
    #9740
    trdquoc

    trdquoc Well-Known Member

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    From another jet most likely
     
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