THEengineer
whatever
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there crap in my drill anorl,when the died in my aeg they wanted £100 for a battery,the drill cost that and both batteries were ####ed,they dont like the cold either
Defender or glorified Milk Float?
- Thread starter Trewey
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there crap in my drill anorl,when the died in my aeg they wanted £100 for a battery,the drill cost that and both batteries were ####ed,they dont like the cold either
Datatek
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At least 2 cargo planes carying Li Ion batteries as cargo have crashed when they caught fire in flight and Boeing have found they like to burn with the Dreamliner, now re-named the fecking nightmare.
A battery used to be a simple chemical thing, a Li Ion battery requires electronics built in to prevent it self destructing
AliV
New Member
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And also if if battery is ever totally discharged a new one needs to be bought, this will happen if you leave it sitting for a couple of months without a charger attached.
m500dpp
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It's a half hearted effort in my view, it retains the standard axles, gear boxes and propshafts all of which are very inefficient. A proper effort would have a motor on each wheel, get rid of the live axles and get far more ground clearance and simulate CDL electronically - BIG increase in efficiency, they just re used the components they had as it is only a publicity stunt.
I seem to recall Chrysler built a lemans car poered by a small gas turbine running at constant speed, this used an electric motor to spin up a flywheel which stored the power (at 50,000 rpm I think) This car could do several laps of Lemans without the turbine running, shame they quietly shelved it, with todays engineering it could be an answer.
I seem to recall Chrysler built a lemans car poered by a small gas turbine running at constant speed, this used an electric motor to spin up a flywheel which stored the power (at 50,000 rpm I think) This car could do several laps of Lemans without the turbine running, shame they quietly shelved it, with todays engineering it could be an answer.
owl
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I once saw an article about a chap that build a car with a small engine that wound up a large flywheel, It all went wrong on road test though.
It set of like a scolded cat but at the first corner precession caused the car to tip over.
m500dpp
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The Chrysler one was on a gymbol, but had a habit of exploding so they gave up, shame todays technology may make it safely possible. The flywheel also ran in a vacuum
Datatek
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Austria or could have been Switzerland had some experimental coaches powered by a huge flywheel. It was used to provide braking to recover energy on descents as well as proving the motive power. Gyroscopic precession was a problem as I recall, made cornering difficult. The experiment was abandoned.
gemsdad
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could that problem not be overcome if two flywheels were used in a counter rotating form??
Datatek
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Precession acts in all 4 planes so not sure 2 gyro's would do it, don't know enough about the subject.
gemsdad
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yes i realise that D,but surely one would cancel out the other??
Datatek
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Dunno, a bloke demonstrated 2 gyro's fixed at 90 degrees to one another that would lift off the bench into the air. I've never managed to replicate it though.
gemsdad
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Datatek
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You may succeed where I failed. I like strange mechanical things and no one seems able to explain how a gyro can defeat gravity by remaining horizontal balanced on a post on one endwell if you have tried and failed,then no point in me having a go then is it.lol.
gemsdad
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You may succeed where I failed. I like strange mechanical things and no one seems able to explain how a gyro can defeat gravity by remaining horizontal balanced on a post on one end
no not that bothered tbh Data.was just a thought though.
Why reinvent the wheel , landrover did a lecky version donkeys ago , this guy is sort of recreating it Adventure EV: EV Conversion Blog so LR could have saved the money and experimented with something else like a lanrover that is fully developed when launched
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