Chalkie Posted September 16, 2022 Report Share Posted September 16, 2022 'm not a firefighter but 2 hours to arrive on scene, fight the fire, and return to the fire house doesn't seem like enough time. I'm not sure I see the value in this fire truck when it can operate 3 times longer on diesel "backup". Quote Rosenbauer estimates that the RTX can operate for about two hours on battery power alone, plus another six hours on diesel power. https://www.motorauthority.com/news/1135900_lafd-electric-fire-engine-delivered?ta=&utm_campaign=trueAnthem%3A Trending Content&utm_medium=trueAnthem&utm_source=facebook&fbclid=IwAR1Qc6KIplUd39GWnj97kwfVCdyzrc0vsiERVMHNF1Ll0Dmwfr2mEWDVn8g Quote Link to comment Share on other sites More sharing options...
durangodon Posted September 16, 2022 Report Share Posted September 16, 2022 I think because most incidents could be handled in well under 2 hours, not to mention a variety of other driving, training, and backing up another station, etc. The vast majority of firefighter calls nowadays don't involve fires and don't involve long time periods. Quote Link to comment Share on other sites More sharing options...
RV_ Posted September 17, 2022 Report Share Posted September 17, 2022 Diesel Hybrid. Interesting. Quote RV/Derekhttp://www.rvroadie.com Email on the bottom of my website page.Retired AF 1971-1998 When you see a worthy man, endeavor to emulate him. When you see an unworthy man, look inside yourself. - Confucius “Those who can make you believe absurdities, can make you commit atrocities.” ... Voltaire Link to comment Share on other sites More sharing options...
Kirk W Posted September 17, 2022 Report Share Posted September 17, 2022 The railroads have been using diesel/electric for a long time, including dynamic braking. Quote Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
Chalkie Posted September 17, 2022 Author Report Share Posted September 17, 2022 1 hour ago, Kirk W said: The railroads have been using diesel/electric for a long time, including dynamic braking. Very true, but they do not refer to the diesel portion as "backup", the two components operate as one. Quote Link to comment Share on other sites More sharing options...
Kirk W Posted September 17, 2022 Report Share Posted September 17, 2022 1 hour ago, Chalkie said: the two components operate as one. They have all the components of a series hybrid transmission except the storage battery, as the only batteries are for engine starting and the power from the dynamic braking is dissipated via a big resistor bank. But battery/electric trains are coming. Union Pacific Railroad to Assemble World's Largest Carrier-Owned Battery-Electric Locomotive Fleet OMAHA, NEB., JANUARY 28, 2022 I couldn't find anything recent about a hybrid version of train engines. Quote Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
sandsys Posted September 17, 2022 Report Share Posted September 17, 2022 2 hours ago, Chalkie said: Very true, but they do not refer to the diesel portion as "backup", the two components operate as one. All those years of electric trolleys and we still insist it can't be done. Now, I'm wondering what all those remotely controlled train engines are using for power. Linda Quote Blog: http://sandcastle.sandsys.org/ Former Rigs: Liesure Travel van, Winnebago View 24H, Winnebago Journey 34Y, Sportsmobile Sprinter conversion van Link to comment Share on other sites More sharing options...
Chalkie Posted September 17, 2022 Author Report Share Posted September 17, 2022 3 hours ago, sandsys said: All those years of electric trolleys and we still insist it can't be done. Now, I'm wondering what all those remotely controlled train engines are using for power. Linda The only electric trolleys I recall had overhead electric lines that they connected to for power. That is still current technology using overhead lines like the Denver Light Rail or an electrified third rail like the New York subways. Quote Link to comment Share on other sites More sharing options...
Lou Schneider Posted September 18, 2022 Report Share Posted September 18, 2022 (edited) On 9/17/2022 at 8:54 AM, Kirk W said: They have all the components of a series hybrid transmission except the storage battery, as the only batteries are for engine starting and the power from the dynamic braking is dissipated via a big resistor bank. But battery/electric trains are coming. Union Pacific Railroad to Assemble World's Largest Carrier-Owned Battery-Electric Locomotive Fleet OMAHA, NEB., JANUARY 28, 2022 I couldn't find anything recent about a hybrid version of train engines. Battery/electric locomotives are nothing new. The Western Railway Museum in Rio Vista, CA (south of Sacramento) has a large 1926 Kennecott Copper 75 ton steeplecab locomotive with 26,000 lbs of Edison nickel-iron batteries. Nominally powered from a 750 volt DC overhead line the engine could operate for several hours on it's 255 volt, 680 amp-hour batteries. It was used to haul ore cars out of an open pit copper mine until 1984 when the mine converted to conveyor belts to carry the ore out of the mine. https://www.wrm.org/visit/car-roster/locomotives/electric/item/60-kennecott-copper-corporation-700 Even today, electric locomotives are only good for short distance yard switching. A battery large enough to give the same range as an over the road diesel locomotive's 4000 gallon tank would up fill several boxcars behind the engine. Diesel electric locomotives are remarkably fuel efficient. Union Pacific's experimental gas turbine locomotives back in the 1950s were discontinued because they needed a seperate tender car or even a tank car behind the engine to carry enough fuel to get the same over the road range as a contemporary diesel locomotive. Edited September 18, 2022 by Lou Schneider Quote Link to comment Share on other sites More sharing options...
rynosback Posted September 18, 2022 Report Share Posted September 18, 2022 On 9/16/2022 at 9:23 PM, RV_ said: Diesel Hybrid. Interesting. I sent you a link about this a couple of days ago. California just took the first delivery of one. Quote 2015 Ram 3500 RC DRW CTD AISIN 410 rear 2016 Mobile Suites 38RSB3 Link to comment Share on other sites More sharing options...
podwerkz Posted September 18, 2022 Report Share Posted September 18, 2022 Just seems like the right place for this. Quote Nothing to see here. Link to comment Share on other sites More sharing options...
Kirk W Posted September 18, 2022 Report Share Posted September 18, 2022 9 hours ago, podwerkz said: Just seems like the right place for this. The Day the Horse Lost Its Job Quote Good travelin !...............KirkFull-time 11+ years...... Now seasonal travelers.Kirk & Pam's Great RV Adventure Link to comment Share on other sites More sharing options...
RV_ Posted September 18, 2022 Report Share Posted September 18, 2022 Excellent article Kirk, Thanks! That's in my links library now too. Quote RV/Derekhttp://www.rvroadie.com Email on the bottom of my website page.Retired AF 1971-1998 When you see a worthy man, endeavor to emulate him. When you see an unworthy man, look inside yourself. - Confucius “Those who can make you believe absurdities, can make you commit atrocities.” ... Voltaire Link to comment Share on other sites More sharing options...
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