Performance Specs

Discussion in 'Newbie Lounge - NEW' started by JoAna, Feb 21, 2018.

  1. JoAna

    JoAna Member

    Feb 10, 2018
    San Diego, CA
    2005 420DB
    Cummins 6CTA 8.3 450HP
    any one have the performance specs for an ‘05 420 sedan bridge? Trying to figure out the rangea at various speeds
  2. Steve S

    Steve S Active Member GOLD Sponsor

    Jun 5, 2007
    Northern IL.
    2000 400 Sedan Bridge with twin CAT 3116's

    2000 340 Sundancer - SOLD!
    210 Monaco 1987 - SOLD!
    Twin Caterpillar 3116's 350 HP straight drives
    From what I understand - look at your owners / operators manual for the fuel burn vs RPM table. That will remain constant. So if you would burn 22 gallons per hour at a given RPM - that remains constant. The variables are how heavily loaded are you? What is the weather / waves like. Those will affect the speed but not the fuel burn per hour. Sped will affect to over time enroute which will affect the total fuel usage.

    Per the specs on my Cat 3116 (350 hp) at 2400 rpm I will be burning 11.3 gallons per engine per hour. That will remain constant.
    Now if I am in rough or head seas, my speed may be reduced - hence I will have a longer trip burning the 22.6 gallons per hour. On the flip side, with calm following seas my trip time may be reduced as the speed picks up but I still will be at 22.6 gallons per hour.

    I have a 2000 400 (40') Sedan Bridge with the Cat 3116TA engines. I will making a 140 nm trip in May bringing her home.

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