LOGO
Reply to Thread New Thread
Old 09-10-2012, 06:10 PM   #61
Paul Bunyan

Join Date
Jul 2007
Age
58
Posts
4,495
Senior Member
Default
And again, in the interests of keeping the thread on track, all I am pointing out is the impossibility of what NASA is saying regarding the rovers.

If you want to suggest it is due to some typo regarding the specs go right ahead.
I'm not implying anything, I'm trying to understand what it is you are implying...

If, as you suggest, the scenario is impossible then either NASA is lying about 1. going to the moon, or 2. the specifications of the lunar vehicles. Which one is it?
Paul Bunyan is offline


Old 09-10-2012, 06:10 PM   #62
Fegasderty

Join Date
Mar 2008
Posts
5,023
Senior Member
Default
might not be tower bridge on second looking.
Fegasderty is offline


Old 09-10-2012, 06:15 PM   #63
Big A

Join Date
Oct 2005
Age
50
Posts
4,148
Administrator
Default
I think the minimum power required for a usable vehicle on Earth is an interesting question.

I proffer this from Wikipedia:
Soon after, Gottlieb Daimler and Wilhelm Maybach in Stuttgart in 1889 designed a vehicle from scratch to be an automobile, rather than a horse-drawn carriage fitted with an engine. They also are usually credited with invention of the first motorcycle in 1886, but Italy's Enrico Bernardi of the University of Padua, in 1882, patented a 0.024 horsepower (17.9 W) 122 cc (7.4 cu in) one-cylinder petrol motor, fitting it into his son's tricycle, making it at least a candidate for the first automobile, and first motorcycle;.[5].26 Bernardi enlarged the tricycle in 1892 to carry two adults.[5].26
Big A is offline


Old 09-10-2012, 06:17 PM   #64
PhillipHer

Join Date
Jun 2008
Age
58
Posts
4,481
Senior Member
Default
The overall mass of rover plus payload was 1500 lbs. I'm guessing those videos L_D points to where the LRV shows amazing performance (as amazing as 11 km/h can actually be) where times when it was lightly packed with payload, taking it near to its mass of 463 lb.
PhillipHer is offline


Old 09-10-2012, 06:19 PM   #65
Lillie_Steins

Join Date
Oct 2005
Posts
4,508
Senior Member
Default
The overall mass of rover plus payload was 1500 lbs. I'm guessing those videos L_D points to where the LRV shows amazing performance (as amazing as 11 km/h can actually be) where times when it was lightly packed with payload, taking it near to its mass of 463 lb.
11kph... not exactly Gambon-esque
Lillie_Steins is offline


Old 09-10-2012, 06:20 PM   #66
softy54534

Join Date
Apr 2007
Posts
5,457
Senior Member
Default
I'm not implying anything, I'm trying to understand what it is you are implying...

If, as you suggest, the scenario is impossible then either NASA is lying about 1. going to the moon, or 2. the specifications of the lunar vehicles. Which one is it?
Well you would have to be pretty braindead not to realise that I consider the Apollo missions to be faked, but what I am offering as evidence is the impossibility of the story we are being told about the rovers, if you want to try and nullify that evidence by suggesting that it is merely a question about the specs then go right ahead.

What do you consider regarding the premise, it is true or not true that the forces the rover will come under being driven on the Moon will be largely the same as here on Earth, and that the power needed to accelerate the vehicle will also be the same?
softy54534 is offline


Old 09-10-2012, 06:21 PM   #67
softy54534

Join Date
Apr 2007
Posts
5,457
Senior Member
Default
taking it near to its mass of 463 lb. plus the two astronauts.
softy54534 is offline


Old 09-10-2012, 06:22 PM   #68
PhillipHer

Join Date
Jun 2008
Age
58
Posts
4,481
Senior Member
Default
Well you would have to be pretty braindead not to realise that I consider the Apollo missions to be faked, but what I am offering as evidence is the impossibility of the story we are being told about the rovers, if you want to try and nullify that evidence by suggesting that it is merely a question about the specs then go right ahead.

What do you consider regarding the premise, it is true or not true that the forces the rover will come under being driven on the Moon will be largely the same as here on Earth, and that the power needed to accelerate the vehicle will also be the same?
So what, exactly, was the acceleration rate?
PhillipHer is offline


Old 09-10-2012, 06:22 PM   #69
Big A

Join Date
Oct 2005
Age
50
Posts
4,148
Administrator
Default
Well you would have to be pretty braindead not to realise that I consider the Apollo missions to be faked, but what I am offering as evidence is the impossibility of the story we are being told about the rovers, if you want to try and nullify that evidence by suggesting that it is merely a question about the specs then go right ahead.

What do you consider regarding the premise, it is true or not true that the forces the rover will come under being driven on the Moon will be largely the same as here on Earth, and that the power needed to accelerate the vehicle will also be the same?
More for TCH, but from what I recall, torque is more important than power for acceleration isn;t it. And since these are electric motors they should have loads of torque.
Big A is offline


Old 09-10-2012, 06:22 PM   #70
NeroASERCH

Join Date
Jul 2006
Posts
5,147
Senior Member
Default
What do you consider regarding the premise, it is true or not true that the forces the rover will come under being driven on the Moon will be largely the same as here on Earth, and that the power needed to accelerate the vehicle will also be the same? well seeing as you are putting this forward then please show your workings that lead you to these assumptions.
NeroASERCH is offline


Old 09-10-2012, 06:23 PM   #71
Peptobismol

Join Date
Oct 2005
Age
58
Posts
4,386
Senior Member
Default
The overall mass of rover plus payload was 1500 lbs. I'm guessing those videos L_D points to where the LRV shows amazing performance (as amazing as 11 km/h can actually be) where times when it was lightly packed with payload, taking it near to its mass of 463 lb.
The astronauts were 400lbs a piece, so unless no-one was driving you can pretty much double your mass.
Peptobismol is offline


Old 09-10-2012, 06:23 PM   #72
9mm_fan

Join Date
May 2007
Age
54
Posts
5,191
Senior Member
Default
Well you would have to be pretty braindead not to realise that I consider the Apollo missions to be faked, but what I am offering as evidence is the impossibility of the story we are being told about the rovers, if you want to try and nullify that evidence by suggesting that it is merely a question about the specs then go right ahead.

What do you consider regarding the premise, it is true or not true that the forces the rover will come under being driven on the Moon will be largely the same as here on Earth, and that the power needed to accelerate the vehicle will also be the same?
The thing is the engineering is sound and you, my friend, are bat-shit crazy to think the moon landings were faked...
9mm_fan is offline


Old 09-10-2012, 06:24 PM   #73
Lillie_Steins

Join Date
Oct 2005
Posts
4,508
Senior Member
Default
More for TCH, but from what I recall, torque is more important than power for acceleration isn;t it. And since these are electric motors they should have loads of torque.
Correct.
Electric motors make most torque at low revs and hence provide the best acceleration at low revs.
You really don't need much power to move along at a reasonable speed, especially with zero wind drag.
Lillie_Steins is offline


Old 09-10-2012, 06:24 PM   #74
doctorzlo

Join Date
Jun 2006
Posts
4,488
Senior Member
Default
"Horsepower sells cars, torque wins races".
doctorzlo is offline


Old 09-10-2012, 06:24 PM   #75
LottiFurmann

Join Date
Jan 2008
Posts
4,494
Senior Member
Default
The astronauts were 400lbs a piece, so unless no-one was driving you can pretty much double your mass.
Still with one astronaut only taking it to about 863 lb.
LottiFurmann is offline


Old 09-10-2012, 06:26 PM   #76
Fegasderty

Join Date
Mar 2008
Posts
5,023
Senior Member
Default
"Horsepower sells cars, torque wins races".


Popular saying though not actually true. Neither is more important than the other; torque at the wheels is most important though.
Fegasderty is offline


Old 09-10-2012, 06:27 PM   #77
Lt_Apple

Join Date
Dec 2008
Posts
4,489
Senior Member
Default
well seeing as you are putting this forward then please show your workings that lead you to these assumptions.
F=ma and a=F/m
Lt_Apple is offline


Old 09-10-2012, 06:27 PM   #78
TorryJens

Join Date
Nov 2008
Posts
4,494
Senior Member
Default
i don't think einstein said it either. or wrote it.

;-)
TorryJens is offline


Old 09-10-2012, 06:29 PM   #79
MannoFr

Join Date
Mar 2007
Posts
4,451
Senior Member
Default
i don't think einstein said it either. or wrote it.

;-)
But he did walk on the Moon!
MannoFr is offline


Old 09-10-2012, 06:29 PM   #80
Peptobismol

Join Date
Oct 2005
Age
58
Posts
4,386
Senior Member
Default
Well you would have to be pretty braindead not to realise that I consider the Apollo missions to be faked, but what I am offering as evidence is the impossibility of the story we are being told about the rovers, if you want to try and nullify that evidence by suggesting that it is merely a question about the specs then go right ahead.
Well it does seem to be rather strange to accept the basis of your argument (that the rover would have collapsed under ful load on Earth) as true without question, but then accept that this is proof that the Moon landings were faked. I mean surely even if your hypothesis were correct surely the obvious reason would be that whoever wrote that piece just got it wrong.


What do you consider regarding the premise, it is true or not true that the forces the rover will come under being driven on the Moon will be largely the same as here on Earth
Not true.


, and that the power needed to accelerate the vehicle will also be the same?
On the flat it would be much the same.


Pleased to be of service.
Peptobismol is offline



Reply to Thread New Thread

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 44 (0 members and 44 guests)
 

All times are GMT +1. The time now is 06:36 AM.
Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2
Design & Developed by Amodity.com
Copyright© Amodity