What is the TOP SPEED of a fire engine? Lets find out
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- เผยแพร่เมื่อ 6 ก.ย. 2024
- A lonely track and a fire engine what more does a man want to have fun!
Filmed just before lockdown March 2020. We were due to go back to finish filming and re filming some sections but due to the pandemic it never happened. Nearly a year on ive decided that i just need to edit and upload what footage i did get as best i can. One day hope to get back to the track in it i enjoyed it so much.
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One day, it'd be nice to see Lawrence with his Dennis Sabre and Lawrie with his Dennis RS make some videos together.
Just before it was taken out of service someone who may or may not have been me, may or may not have seen just over 80 on the Speedo of our Sabre full of water and ladders but no other kit
Im a Staffs enthusiast, and am/was friends with many of my local station's firefighters. They told me they once got a ton out of their 1983 Dennis RS133 on a downhill section of the A50 and 95 out of their first Dennis Sabre (S-reg) on the same stretch of road. They also told me that when the fire service sells old retired appliances to the public speed limiters are first fitted.
I think the lights and sirens give at least a 10mph boost 😉
Did my “blue light” course in a Dennis......managed to get 75mph,ish out of it......it was unloaded...no water no equipment and a slight downhill too, but on the open road!🤷🏻♂️
Nice one Lawance! Maybe in a couple of years I can come up and we could have a drag race.
Never turn down a race. :-)
Once she's running I'll have to see how much transport would cost, we've done some working out since you came down and we think a full fuel tank will do about 40 miles 😂
The ladder and top light would’ve caused serious drag. Also, if you get to try this again, try changing gear ‘manually’ on the auto box by holding the gears with the selector & knocking them up when close to max revs. Sometimes the hold on the kick down isn’t sufficient & it will change up before you want it to even though you’ve probably got your foot buried.
I bet he could get more speed out of a Rosenbuaer 6x6 airport crash tender so popular at European Airports. Low wide stance, smooth aerodynamic front and a massive 550 hp engine should make them easily hit 95 mph and do it inside of 30 seconds despite weighing 55,000 lbs. Those crash tenders are made for high speed travel. I had so much fun with a military mechanic buddy of mine who invited me on board an old Oshkosh P-15 8x8 crash tender back in the 1980s. We got that thing going over 90 mph inside of 30 seconds. Mind you they had two very large engines. Those were also the heaviest fire trucks ever made at 65,000 lbs and they had a beautiful slab sided, blunted front that didn't care about wind resistance.
The P-15 is over 130'000lbs which is around 65 tons. The engines in them are 8v92's which combined produce just over 800bhp which would never get it to over 90 in under 30 seconds, my truck has a Detroit 12v92 with 760bhp and weighs 73'000lbs and only does 0-50mph in around 26 seconds with a top designed speed of 75mph. In 1990 it was considered to be one of the fastest ARFF rigs available at the time. The old ARFF rigs including the Oshkosh models seem to have so much myth and legend around there specs but in reality there not as fast or as powerful as people generally think.
Glad to see you back, Lawrence!
Did my blue light course in a scania, they are all limited to 86mph in our service but could easily push a tonne a reckon, they have plenty more to give.
Back in the day before speed limiters, about the time this truck was in service, I passed a fire truck that was on blue lights on the M1, I was driving a loaded 7.5 Leyland DAF 45/130 turbo.
In 1977 I was doing 'blue light' training.
After passing the HGV test, because my station had a particular type of fire engine, I then had more training in a Dodge (K series, I think) with the full fat Perkins V8, a manual gearbox, and a powered clutch.
I SAW 94mph on the speedo on the Dorking bypass.
Can't remember if it was fully laden or whether it had any ladders on top.
But, what an engine, the noise and rumble was like nothing out there today!
its restricted i guess
M8, Drove Dennis most of my FS career. Sabres we had could and did 85. Not fun, but easily achievable. As they got older, they lost 10/15% of speed. Compared to a 2010 Scania, who’s brand new top speed of 72, our 2nd was still the daddy.
look on a yank website as theres quite a bit that can be done to these if its still mechanical fuel delivery. later electronic ones can be remapped too.
Would be a fantastic idea to drive day experience i for one world do it as a retired fire pump driver
Two great runs there Lawrence. what comes in to play is how many gears you have and what the gear& differential ratio`s are, as how many rpms will gain a set speed. Between 3:31 to 3:45 you can see your phone and speedo roughly match between 74-76 mph. But your rev counter is red lined at 2500 to 2600 RPM. excluding weight weather etc she more or less topped out. if say she is 6 speed box but swapped to 7 speed box with same ratios, she would do more speed for less revs. All that matters she can hit motorway limit and you had fun doing it. cheers ken
Yeh definitely topped out on revs will be looking to do some slight mods to see if we can push her a bit further
Nice to see you back
Cant wait for the next video
Managed to get 75 out of mine fully loaded on the m60. That was a volvo though, ive always found the newer ones to be decent
I'm so happy your still about I was concerned that you had to sell your baby because of the current situation please keep us updated on what's going on so we don't get worried and that we know your OK and still have your baby. I look forward to the future videos Please keep them coming even if your unable to leave your yard.
I done over 70 mph in a double decker volvo bus.... RV 444 1998 registered... Absolute rocket. That was with passengerS on board
Dennis rapiers were and are. The fastest Dennis fire engine ever built because when they first came out they had six gears and used to get to around 130 miles an hour and this is by my grandad and dad who’s well that still works in the service and grandad used to so you stop power around 130 but the Sabres are slower. if you remove all of the equipment and have an empty tank that should help out around 90 mph because my dad had it going 85 downhill with just the ladder and other locker equipment. They removed six gear in the rapiers because of too many crashes they had with them tipping over crashing into lampposts but overall the ropes were faster and had a really really good brake power my dad said he got one of the rapiers going 100 and stopped in about a mile with his foot half on the floor so you’re better off getting a rapier if you want speed. ❤🎉😅
Nice to see ur back
Cummins c series ( 8.3 ) ? as fitted to Dennis Javelin coaches of the era but what auto box Allison / Voith / ZF ? also depends what your diff is or restricted ? Nice to see you and her back .
Alison box on this 8.3 litre
@@ExtremeGarage As fitted to Dennis Darts . I have a lot to do with Dennis Dominator buses fitted with Voith and a ZF boxed Scania .
SBCITY had Pierce PUCS w/Cat motors governed at 72 mph in 5th and 6th gears. Fully loaded ready fir work. Upper 60’s going uphill Cajon Pass…..
All fire appliances used to be governed down to reach a maximum speed of 66mph. When the governor is defective they can go faster, I have done 75mph on a shout many years ago
Speed is enough .still one of the best emergency services when you need them
I've been driving Sabres fore 18 years operationally and on Motorways, I've had an indicayed 85mph showing on the speedo! I was certainly going 10mph faster than the cars in lanes 2 and 3. It takes a while to get those last few mph though. This was with a fully loaded frontline appliance responding to an emergency. They are so different to drive from a normal lorry, sad that I won't be driving them for much longer 😔.
Unsure if it counts for this, but on modern day appliances the limiters stuck on 56mph when not in 999 mode and i believe 75mph is where the top limiter is when on emergencies
Great to see you back Lawrence and also that song is bloody brilliant, listened to it about 10 times!
I love the music in the background. I love this sprinter speed!
Get it remapped kidda
Great video Extreme Garage. Thank you.
In gta the firetruck goes 120mph, faster then a lot of the cars
The fire trucks in GTA are tiny compared to real life too.
Good to see you back!
Fire engines aren't exactly built for speed.
Nicolaus I recognize that truck in the picture ex Dublin fire brigade Dennis 2000 use to be in the barn station across from me
@@billymallon1743 It's Nicholas doughnut.
@@nicholaspeberdy8537 sorry
Back in the 70's the Dennis's my Fire Service had were powered by Rolls Royce straight eight Petrol Engines and could exceed 110mph, They never drove them that fast because you would never stop it on the drum brakes. they also returned about 5 miles per gallon.
u couldnt go back and finish filming bc the "pandemic?" was the track closed or...?
According to my friend Eric, they are much faster cuz those things are movin
Do it with the blues on it will make it go faster:))
Well that's true with the Staffordshire Scanias that replaced their Dennises. Limited to 56mph out and about, but the activation of the blues deactivates the limiter, allowing around ten extra mph! Woo-hoo!
Adrian Charles loved you on the One Show......
Is that Bruntingthorpe?
Sure is. Great track with the birds around it
I may be wrong but isn’t there a limiter when not in 999 mode. Seem to remember reading something about this from a fleet technician in the U.K. as to why they needed to pass the blue light course.
Newer Appliances are limited to 56mph until the Blue lights are activated, then we can do upto about 75mph. We are trained to drive to arrive and to the road conditions and also should not go more than 20mph above the limit around towns.
Try twos and blues,might go quicker then! Great vid,jelous want a Sabre or Rapier!
With or without a full load of water ? My old 1999 Scania 190d used to do over 80mph if you disabled the limiter
I wonder if a remap would help to give you a few more ponys
Would you buy a second fire engine if you would it would probably be another Dennis. Opinion on scaina fire trucks
They are normally speed limited mate By law. Normal truck is 56mph but Fire are norm 75.
Nice one Lawrence, if you do manage to pass 70 mph, how fast are you hoping to do?
Dennis built the Rapier and Sabre to Fire Service spec. I know they played around with the diff ratios. London Fire Brigade (for example) did not need top speed so a low ration diff gave great acceleration at the expense of top speed. Change the diff, and its slower off the mark, but the top speed is improved. I have seen a report of a Dennis from the experimental dept being clocked on the M1 at 105mph. No idea what power plant was on board but I know they were monkeying around with a big V8 diesel as far back as 1970.
@@ianddavidson1 So you're saying that both Sabres and Rapiers can go up to under 110mph?
@@NeilM01989 It appears that is possible with the right engine /diff combination. The Rapier was certainly capable of high speed. Derbyshire fire and rescue blocked off top gear as it was reported they were being driven too fast. Dennis were without question a remarkable manufacturer.
@@ianddavidson1 Wow nice one, yeah indeed they are one of the best British lorry manufacturers. Thanks for answering my questions mate. 🧑🏻👍🏻
Try an American fire truck that has the turbos unlike that truck
Of course the dennis has turbo diesel , it's also old a 97 model, also US gear is no faster than European engines
It won't go any faster as you have red lined it in 5th gear on the rev counter but I've had one at 80 mph on blues but that was a newer one than yours but iv have seen the older ones do about 80 too
I always thought 55 mph depending on the weight
Fire engines are not restricted to speed limits when being used to respond to incidents and for driver training purposes. Later appliances are electronically restricted to 55 mph, until the Blue light mode is engaged.
for some reason youtube unsubbed me!
I can comfortably get 95mph out our 02 Scania fully kitted with a tank of water. You just need to try harder.
56mph.
ok. and the talking and music. im sure 80% audience wants to hear the motor cmon dude