.

Guy in BC Canada (left coast) .... trying to save the planet .... so he drives an electric hybrid SUV ..... a model known to have "PARK" problems

At the boat launch (he was in the boat) the car started to roll backwards .... he jumped off , almost got run over , car and boat proceeded into the water and car was completely submerged ..... that is the First OOPS

Car under water and tow-truck winches it out and the dripping wet car promptly caught fire .... took hours for firemen to extinguish it.

Story and video here

https://bc.ctvnews.ca/caught-on-camera- ... -1.4425001

funny,
I have riden a vectrix bike for 6 years and after the company bankruptcy I sold it and bought a BMW C evolution I have had for 6 years now
absolutely no issue with both those EV's
I never buy any gas except when I need to travel far : nearly never
hillarious when people are queing at the gas stations when we had the monster gilet jaune demonstrations with all the gas shortages following..
I am working on a solar pannel bank and a lithium bat back .. the sun never quits, neither the wind .. future will not be bright .. we maus prepare .. it's called survivalism ..
all that can bring you independance, is more then important

you may have to pay to rent it but look up "Who killed the electric car" documentary, about GM's EV-1 program. very interesting.

You know what a lot of my friends are working for French space companies (satellites , rockets .. etc) ... when they first heard Elon musk saying that he would send rockets and land back 2/3 of them and re-use it ...they all rolled on the floor laughing ...

Now they are counting their years until their retirements coz they know that their satellite companies will not survive more then a couple years ..

if Elon musk believes in electric cars it is not for nothing ... and all the journalists who tried to discredit him pointing out the lithium batt fires and the accidents due to self driving systems just have to shut up their big mouthes in front of those fantastic cars ..

In France we have Tesla taxis having exceeded 1 millions kilometres with negligible range loss .. it works, perfect

believe me ... GM, renaullt , peugot, toyota etc ... will bankrupt soon ... we are living the end of an era

all those car companies did not bet on the transition ... they thought they would go on making money selling explosion engines ... now they are crying coz they perfectly know that it is over ...

look : 1500 kw/m2/year this is what a 100 dollar solar panels produces, for 20 m2 this is 32.000 kw/year ... a Tesla eats 20 kw/100 km 160.000 km per year ... for 2000 euros of solar panels ... and 40.000 €uros for a car that can make 2 millions KM (solid state batteries) ... this is not the future this is now !

all is plug and play you just have to buy the panels, the cables, the converter and the lithium pack ... independence for ever ... you fuck them all ..

when I pass by a gas station I laugh

it just only a question of money, but think a little bit, what would you do without electricity ? even just for light ? anything can happen ... the covid-19 shown us how fragile we are, how dependant from collective services we are, we need : a house, food reserves, water storage, spares parts for our electric systems, this what we need ... and off course big guns to protect ourselves..

when the times will come we need to be ready ... you will have those who will queue up at the gas stations for 30 litres of gas, and you will have those who will stay at home still able to survive ..

survivalism is more then a hobby it is a philosophy

in addition it is a question of national independence ... buying petrol abroad is just stupid !


I can't afford a Tesla .. but believe me as soon as I can I will buy one and it will be my last car ...

in the mean time I am spending small money to make my last petrol car survive until I get the money to buy a tesla

let's keep petrol to fly

I saw a french company has made a car whose engine runs on compressed air!
If you had a double decker garage with a bellows, you could drive up at night, in the morni g the weight would bring car to ground level and put compressed air in tank!
Okay the garage idea is mine and most likey violates some thermodynamic law...but the car is real.
Ill say this though, the first company to come out with an all electric pick up truck that doesnt look like it was made to pick up fags in the park will make a killing

Henry...Interesting concept.You are correct about this violating a law. Just the energy from the engine initially driving to to the top of the garage, would not be fully replenished as the car weight then recompresses the air as it descends. There is always a net loss.

Kind of like an "all" electric car when braking uses that kinectic energy to recharge the batteries , which gave the car its kinetic energy in the first place.

However, a hybrid car can recapture some of that gasoline powered energy and charge its batteries a little each time it brakes.

Love this stuff Henry .... you have the mind of an inventor ..... the way to make that work is to have a 4-car elevated garage and let your neighbors park for free and the weight of their cars descending overnight could produce some energy.

Compressed air is almost a perfect way to store energy .... it is non toxic , lasts forever without maintenance .... problem is the storage tanks have to be heavy steel pressure vessels and expensive to build large ones .... I always thought if a guy could buy some discontinued anhydrous ammonia fertilizer bulk tanks and use them .... they are good to 300psi .... but even at scrap metal prices they sell for big bucks

However ... if a guy could buy 3000 miles of 36" underground pipeline it could store an HUGE amount of compressed air ..... they test them to 1000psi ..... you could have a bunch of windmills compressing the air .... some oil company should do that on one of their out of date pipelines as a publicity gimmick to save the planet or something

Speaking of descending cars .... I have a 1970's wind power book where a guy winched up a 1956 Buick on a windlass type affair ..... worked along the lines of a wind-up clock-works spring .... as the car slowly descended it powered a small generator

this system has been used in various systems, trams , trains, submarines, torpedos

https://en.wikipedia.org/wiki/Compressed-air_vehicle

I even though of using it to pre spinn my rotor with a tiny aluminum scuba tank ..

I think that energy losses are huge when you know that you have to use a compressor to store the energy and then an other mechanical system to transform the energy into mechanical force .

Problem with hydraulics or pneumatics is it erodes the passages and valves when high pressures and volumes are used.

another is contaminates in the fluid/air.

temperatures as it releases pressure you get freezing and condensation on release and heat during filling.

We lost some nuclear powered submarines due to icing on the vents (debris screens frosted over) as they blew the tanks.

I agree with Hillberg ..... when compressed air is released it has a cooling effect .... which "shrinks" the air a tiny bit and lowers the energy velocity ... plus the icing like he said .... I have used industrial air powered grinders and on a hot humid day a rim of ice will form on the grinder ... it is the same thing as carb icing in an aircraft.

Air-operated mining trains or torpedo air-motors use a heating element to warm the air to prevent it ... but the warmers require batteries or propane which kinda defeats the whole purpose ..... same as aircraft .... turn on carb heat and lose some power.

Modern torpedos used compressed air in breathing life in the gasoline engines or gas turbines that power the propellers

olden days used air motors and electric motors

Torpedos after a run or guidance malfunction would turn on their masters... not good

In early WW 2 the failure rate was 95% of the fish not going off at all...

The 1st "torpedo" was deployed by the turtle in Boston harbor during the revolutionary war

Or was it the Romans with hell fire???

or a caveman swimming with a pointy stick???

I would love to see somebody experiment with that .... even just a ground based test stand with an old set of blades .... I have several aluminum oxygen tanks that hold 2000 psi ... that is a lot of pressure ..... I am certain it could give several good pre-rotations to gyro blades.

Getting the tanks filled back to high pressure would be hard for the ordinary guy .... most local compressors top out below 200psi.

I owned an 8 car auto-body shop with a large DeVilbis 15 hp compressor .... with an inline regulator set to 90 psi ..... once in a while a hose end would come off and that hose whipped around like a wild snake .... plenty of thrust there.

My mind wanders into dangerous territory ..... to prerotate a gyro rotor I would experiment with simple old school rocket fuel .... a mixture of oxygen and refined kerosene .... small pencil thin tip rocket fed by tiny lines of oxygen and kerosene into a small DeLaval Nozzle with a featherweight igniter similar to a barbecue starter .... that rotor would be at 200 rpm in about 30 seconds .... no torque on the fuselage and compared to the typical pre-rotator it wouldn't add much weight.

Compressed oxygen is plentiful and cheap , so is kerosene ... all we need is some crazy Frenchman to try it .... love ya man ... glad you are here

Okay, now were in my territory!
Arnie, the cooling effect is called Adiabatic air pressure and it is actually more pronounced the tighter the venturi that you force the air through. This COULD be used as a method to make a heat differential on a Stirling engine, but the loss would be more than you could make up for, Like the regen braking.
Now as for the compressed air vehicles, the tanks can be made of Tantalum, which contains to 5000 PSI in small lightweight tanks (Giro, you know what I'm referring to...MK16) and would make a handy storage platform right up until you have an accident and rupture a tank, you wouldn't likely walk away form it!
As for the Torpedoes, Hill, yes the first one was a torpedo that you mentioned historically, but not!

Back in the days when that term was used 1700's the term Torpedo was more in line with what we call a mine now days, this is borne out by the fact that (little know fact here Normie) the phrase "Damn the Torpedoes four bells ahead (not full steam)!" makes more sense if you are referring to pushing through a Mine field. (Which they were, Mobile Bay if I remember correctly)
No Torpedoes have used compressed air in a long time, Our Mk27 series, the last of the big boys used a TERRIBLE NERVE AGENT known as OTTO fuel II that had disastrous effects on humans in confined spaces if there was ever a leak. It is one of the reasons the Navy has gone almost entirely to Mercury Thallium Battery drive torpedoes. Still nasty shit to be sure, but It won't kill your crew with one tablespoon dripped on the floor in the room with the first breath. Jut don't let them catch fire....VERY hard to put out and without SCBA your dead anyways.
I once had a tour of the Keyport NUC facility where the Navy was downloading the OTTO fuel II from the Torps and even though the rooms gauge said zero PPM, the second I walked in both me and my chief instantly got diamond splitter headaches! the rest of the crew? nothing....susceptibility issue maybe, but I wasn't sticking around to find out!

As for inventing? i invent all the time! being dereft of any classical formal education makes my fanciful dreaming much more successful in my mind as long as I don't disprove my theories by actually trying to build them!

But I did invent a game changer of an idea, built it and had 100% success rate with it....then I just put it away, the industry I built it for changed:( Shame because it had a catchy name...Promethius Powder.

the problem of pneumatic pre-spinner is the limited amount of energy stored in a small scuba tank

my compressor ( scuba compressor) take 4 minutes to fill a 2 litres 200 bars tanks ( 3000 psi), it's motor is a 2000w motor .. so we can consider that the tank contains 8000 W for a minute .. the problem is that half of the energy would be lost ( at least) in the pneumatic engine ..

having worked on my electric system a lot I know that I need 5000w to pre-spin correctly my 8.60m rotor , I am coming to the conclusion that it can't work ...

for me the real alternative to the mechanical system is the electrical pre-spinner

I have built one and there is a "discussion" on this forum

the main problem is the capacity of recharging the pack in flight ... I really did not want to even consider this ...coz using lipo I feared a battery fire ...

but ... gosh I have recently watched a video posted on youtube by a youngster ... he has made a batt pack he carries on a lithium back pack and he powers his electric bicycle with a range of 80 km/h

the guy uses Chinese BMS circuit (battery management system) that prevents any fire ... it costs 30 dollars and those circuits even have a bluethooth system that makes it possible to monitor all the batt pack data on a smartphone ... charging the lipo batt can be considered

I am mounting the rotax at the time ...

Ben...That was some good reading.
.and probably but a small fraction of what you know.

I went paint balling with my son...but soon realuzed we were out gunned. We had little bottles of compressed air, with a small compartment for our paint balls. Our opponents looked more paramilitary....kevlar backpack air tanks with 3500 PSI charge....and they had hoppers on their paint guns.

We were desimated in 30 seconds. Those little burgers can sting, especially since they werent following the max FPS rule.

I never went back!

We had an invite to a paint ball battle and Dennis wanted to take the Hughes 300 and drop off a few guys in the area.

Helicopter came back with the chin bubbles blown out and paint ball debris all over the engine, What a mess


Now back to electric oops

The use of paintballs "can" be effective to teach force on force. But in .y experience, it is mostly the same bullshit tactics the gamers use.
Rush the target lose a bunch of foot soldiers till we achieve our goal.
Thats just not how it works when the game is for real.
Giro, I had once enquired here about lining the trailing edge of the rotor blades with tiny little holes and pumping compressed air out of them as a tip jet. Some here think it would work as well.
If you flights will usually be fro. Point A to point A, consider a prerotator that does not need to go with the gyro. Have seen hand cranks and Dewalt battery packs used that then are left behind.
Saves weight and hassle, and o matter what the schumucks on the other board say, if you can't hand pat your blades your missing a critical skillset in my opinion.
Or you could always try it old school, wind a rope backwards around rotor, anchor rope, and drive away from the anchor!

.

re: compressed air to pre-rotate .... I forgot about this one .... and I posted the article back in 2016 ... haaa

The certified Canadian built Avian 2-180 used compressed air to pre-rotate but found compressed air storage was an issue so went to an engine driven mechanical system

Here is the article I did in post 59 plus more in post 71

https://www.rotaryforum.com/threads/avi ... 159/page-3

I can no longer log in RWF .... otherwise I would have transferred my scans here ..... I put a hell of a lot of work into it scanning old documents etc ... the whole thread is interesting .... duct fan with enclosed rudder , 2 hour interview with the engineer / designer etc

--------

And to get this off my chest I see leftist J-Bird on RWF still stirring political shit .... he caused lots of those same issues years ago which is why a bunch of us people left ... yet he remained .... and mostly only posts if anyone conservative states their viewpoint

farging icehole

Yea , hes a piece of shit.
As for compressed air, could you just run a whip off the compressor that powers the pnumatic trim system on my new rig?
Probably not enough volume.

Hey Stan .... Back in the day a bunch of my friends and employees got into paintball competitions .... I wanted too but simply did not have the time .... but every monday morning I wanted a full report .... they said it was fun at first but later guys with more money would buy bushels of paintballs and fire them like a machine gun and the fun went out of it.

I suggested a true competition would be each person having identical single shot guns and equal amount of paint balls ..... that way the realistic skills of stealth , camouflage , accuracy & marksmanship would all count.