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BCF vs BSDF

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    BCF vs BSDF

    Can anyone explain the most notable differences between the BCF 737s and the BDSF 737s? I know the Fact that Boeing engineered the BCF modifications and an Israeli company engineered the BDSF changes, but what does that mean in an engineering sense? Are the hydraulic systems different or do the have different max payloads etc? Thank’s in advance to anyone who has anything to share.

    I’m Mike Jones!

    #2
    When they do cargo conversions, they don't usually modify the airplane other than converting the passenger cabin into a cargo hold and installing the main cargo door. The airplane stays almost identical to the passenger version and there's rarely even changes in the cockpit, apart from panels for the main cargo fire suppression in case it's a CAT C cargo hold. As far as I know most of them are CAT E (fire detection but no fire suppression). The differences you might find between the two are the door itself and the floor of the main cargo hold, which can have different load ratings. I checked the MTOW in both and it's the same as a normal unrestricted 737-800. The maximum payload may differ because they may have different DOW after conversion.
    Back when I flew cargo we used PCF converted airplanes while DHL (whom we used to jumpseat on) had a different conversion. The airplanes were mostly identical but they had a much nicer crew access door with inflatable slide and all. Ours wasn't even a door, it was more of a hatch. To evacuate, instead of a slide, we had inertia reel and "diaper".
    Last edited by Aeromar; 04Mar2021, 23:05.
    Omar Josef
    737 FO
    757/767 rated
    Spain

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      #3
      Looks like the cargo door on the BDSF is very close to the main entry door, whereas the cargo door on the BCF is further back.
      Captain Kevin

      Kevin Yang

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        #4
        Yeah, now that I look at it, that might be one difference between the two. By having the main cargo door more FWD, maybe they can load 12 pallets instead of 11 and a half. Also, considering it's more expensive and newer, the BDSF might have fire suppression in the main cargo hold and the BCF may be just CAT E.

        In CAT E cargo holds, if you have a fire indication in the main cargo hold, your only way to suppress it is to go on O2, descend to FL200 and depressurize the airplane (procedure may vary).
        Omar Josef
        737 FO
        757/767 rated
        Spain

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          #5
          Thanks guys! Appreciate the info!

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