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View Full Version : The Cr.50 has two speedometers! Bug?



Ligushka
04-27-2007, 01:28 PM
http://img234.imageshack.us/img234/6976/altimeterex0.jpg

(image is 1680x1050)

The Fiat Cr.50 has two speedometers. They seem to be exactly the same in function. Is this a bug or did the Cr.50 really have two speedometers for some reason?

FE_pilot
04-27-2007, 02:04 PM
That might a bug since both speedometers look exactly the same. I never heard of a single engined plane with 2 exact same speedometers. You might want to report that to leg so it can be fixed.

Pollack2006
04-27-2007, 04:41 PM
It's an Italian plane. One is for speed going forward, the second is your speed in reverse.

j/k

Ratsack
04-27-2007, 05:08 PM
She goes a so fast, you need to read it twice to believe it!

Ratsack

Pollack2006
04-27-2007, 06:59 PM
Here's a link to a shot of the new BoB G-50....same layout, seems legit.

http://s58.photobucket.com/albums/g260/restranger/?acti...current=65b2a8d6.jpg (http://s58.photobucket.com/albums/g260/restranger/?action=view&current=65b2a8d6.jpg)

ImpStarDuece
04-28-2007, 01:17 AM
Seems to me that it DOES have two speedometers:

http://img151.imageshack.us/img151/6083/g50pitje0.jpg

269GA-Veltro
04-28-2007, 03:17 AM
Originally posted by Pollack2006:
It's an Italian plane. One is for speed going forward, the second is your speed in reverse.

j/k

...................

joeap
04-28-2007, 03:24 AM
Originally posted by 269GA-Veltro:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Pollack2006:
It's an Italian plane. One is for speed going forward, the second is your speed in reverse.

j/k

................... </div></BLOCKQUOTE>

Wow, Italy developed something like an Osprey in 1942! http://forums.ubi.com/images/smilies/25.gif



http://forums.ubi.com/images/smilies/partyhat.gif

F19_Ob
04-28-2007, 04:36 AM
Thanks a lot ImpStarduece for posting that pic. http://forums.ubi.com/images/smilies/25.gif
And Pollack too.
Good help and fast solution.

stansdds
04-28-2007, 05:39 AM
One is for your left eye, the other is for your right eye, that way you get to experience high speed in 3D! It is said to have greatly improved the immersion effect for Italian pilots.

Matz0r
04-29-2007, 10:42 AM
RL MC200 also has two:

http://ipmslondon.tripod.com/sitebuildercontent/sitebuilderpictures/c20011.jpg

Superluminal_8
04-29-2007, 10:59 AM
Could it be dual for just IAS and TAS?

Nimits
04-29-2007, 01:49 PM
Without a computer, I do not see how you could display TAS.

NonWonderDog
04-29-2007, 02:34 PM
Airspeed Indicator! http://forums.ubi.com/groupee_common/emoticons/icon_mad.gif

WB_Outlaw
04-29-2007, 04:33 PM
Originally posted by NonWonderDog:
Airspeed Indicator! http://forums.ubi.com/groupee_common/emoticons/icon_mad.gif

What he said!!!!!!!

--Outlaw.

VW-IceFire
04-29-2007, 06:05 PM
Originally posted by Nimits:
Without a computer, I do not see how you could display TAS.
Me-262 has a IAS/TAS indicator. I'm sure you could do it mechanically...maybe not accurately but good enough.

Nimits
04-29-2007, 06:58 PM
I guess; true airspeed is going to vary from indicated at a variable rate dependent on air temperature and altitude. I human with a "whiz wheel" (circular slide rule) can figure it out easily enough, and no doubt 1940s-era mechanical computers could work it out as well, I just find it unlikely that a fighter plane would be carrying one of those. But, if the 262 had a TAS guage, maybe it can be done without any computer (electrical or mechnical) assistance. I am not an avionics expert, so I may just be making a fool of myself here . . .

VW-IceFire
04-29-2007, 07:33 PM
Originally posted by Nimits:
I guess; true airspeed is going to vary from indicated at a variable rate dependent on air temperature and altitude. I human with a "whiz wheel" (circular slide rule) can figure it out easily enough, and no doubt 1940s-era mechanical computers could work it out as well, I just find it unlikely that a fighter plane would be carrying one of those. But, if the 262 had a TAS guage, maybe it can be done without any computer (electrical or mechnical) assistance. I am not an avionics expert, so I may just be making a fool of myself here . . .
I don't either...I just know that the Me-262 indicator has both IAS and TAS marked at the same time. So there must be some way to do it...maybe its a bit of a luxury item http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif

LEXX_Luthor
04-30-2007, 07:37 PM
The Fiat guages are so pretty in these models (42,50), especially near sunset with the cockpit lights turned on, there should be two speedometers. More would be even prettier.

JG53Frankyboy
05-01-2007, 06:25 AM
well, italians know how to show something looking nice http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif
http://www.panerai.com

http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

BM357_Sniper
05-01-2007, 02:17 PM
Originally posted by VW-IceFire:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Nimits:
I guess; true airspeed is going to vary from indicated at a variable rate dependent on air temperature and altitude. I human with a "whiz wheel" (circular slide rule) can figure it out easily enough, and no doubt 1940s-era mechanical computers could work it out as well, I just find it unlikely that a fighter plane would be carrying one of those. But, if the 262 had a TAS guage, maybe it can be done without any computer (electrical or mechnical) assistance. I am not an avionics expert, so I may just be making a fool of myself here . . .
I don't either...I just know that the Me-262 indicator has both IAS and TAS marked at the same time. So there must be some way to do it...maybe its a bit of a luxury item http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif </div></BLOCKQUOTE>
It just an adustable scale that you set to the outside temp. Pressure is already adusted since, well thats how the thing works. lol

Platypus_1.JaVA
05-03-2007, 01:25 PM
Originally posted by Nimits:
Without a computer, I do not see how you could display TAS.

You just need static airpressure (at your current altitude) and the airpressure on ground level to calculate TAS. Nothing complicated about that. TAS increases with about 2% for every 1000 feet of altitude.

Anyways, I suppose they had too much speedometers in Italy at the time and some room left in the cockpit http://forums.ubi.com/images/smilies/16x16_smiley-very-happy.gif

NonWonderDog
05-03-2007, 02:35 PM
It's not really as simple as that. You know ICE-T?

First you have to subtract the installation error depending on angle of attack, giving Calibrated Air Speed. Then you adjust for the compressibility error depending (non-linearly) on altitude, giving you Equivalent Air Speed. Then and only then you can adjust for the pressure error to get True Air Speed.

Of course, maybe the indicator in the Me-262 does just add 2% for every thousand feet of altitude.

Treetop64
05-03-2007, 11:20 PM
Originally posted by Pollack2006:
It's an Italian plane. One is for speed going forward, the second is your speed in reverse.

j/k

To elaborate; one is for your airspeed going forward, while the second is, at the same time, showing your groundspeed in the opposite direction.

http://forums.ubi.com/images/smilies/59.gif

LEXX_Luthor
05-04-2007, 01:24 AM
http://forums.ubi.com/images/smilies/16x16_smiley-very-happy.gif

One is for speed in the air, the other is for speed on the ground.

That would be neat -- have a real ground speedometer tied into the wheels. Anyways, they both look great. I'd like more.

WWSensei
05-06-2007, 07:42 PM
Forget the ASI. Where is the fuel gauge in that thing?

AKA_TAGERT
05-06-2007, 08:33 PM
Originally posted by Pollack2006:
It's an Italian plane. One is for speed going forward, the second is your speed in reverse.

j/k LOL!

Ill bet the forward one is not calibrated

Gibbage1
05-07-2007, 11:40 AM
I think one is Metric, and the other is Imperial. You know. For when they switch sides.

Nimits
05-07-2007, 09:32 PM
I think one is Metric, and the other is Imperial. You know. For when they switch sides.

LOL

As the story goes:

When the German attache told him Italy would stand with Germany, Churchill responded: "It's only fair; we had them last time."

Abraxa
05-08-2007, 11:56 AM
Originally posted by Nimits:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">I think one is Metric, and the other is Imperial. You know. For when they switch sides.

LOL

As the story goes:

When the German attache told him Italy would stand with Germany, Churchill responded: "It's only fair; we had them last time." </div></BLOCKQUOTE>

nice post-war stories. Churchill's letters to Mussolini, in 1940, sounded differently, though.
(EDIT, before my post is misunderstood. This doesn't conceal that Mussolini's decision to take the wrong side in WW2 had nothing of honorable).

And "the last time" was WW1, when the Italians won their war without "Churchill's help", leaving 600.000 soldiers on the ground.

ITA_Tecnico
05-08-2007, 01:04 PM
For when they switch sides.


..some people are very coherent,in their lifes has only one side:stupidity.

SUPERAEREO
05-08-2007, 02:29 PM
Please avoid cheap jokes: they can offend others and they don't make who tells them look too clever either.

It is all too easy to make fun of the Italian bellic effort in WW2, but seen from the Italian side it was nothing short of a national tragedy ending in a bloody civil war the echoes of which are still present in the country's psyche after more than sixty years.

veltro205
05-08-2007, 02:47 PM
History and war are two damned serious things.

Far too serious to be reduced to stupid jokes and stereotypes offending other people.

There are thousands of Italians died to fight against Fascism and tens of thousands died because of it. Generalizations add insult to injury.

Better stick to airplanes or camouflages if this is the level of other argumentations.

Sincerely,

Ferdinando 'veltro' D'Amico

269GA-Veltro
05-08-2007, 02:49 PM
Originally posted by SUPERAEREO:
Please avoid cheap jokes: they can offend others and they don't make who tells them look too clever either.

It is all too easy to make fun of the Italian bellic effort in WW2, but seen from the Italian side it was nothing short of a national tragedy ending in a bloody civil war the echoes of which are still present in the country's psyche after more than sixty years.

Well said!

Gibbage you're only a very little man.....you and the other guys above.

Congratulations!

berg417448
05-08-2007, 03:06 PM
Does anyone have the answer to the question? Why 2 airspeed indicators?

Abraxa
05-08-2007, 03:36 PM
Originally posted by berg417448:
Does anyone have the answer to the question? Why 2 airspeed indicators?

I think I did read it somewhere time ago, but I need a fresh check.

Anyway, you have a pitot tube for each wing, in the G50.
The different speed-meters were used to check that the aircraft had the most efficient, balanced and max drag-less flying attitude.

Somebody will correct or complete my answer. I'll check furtherly.

SUPERAEREO
05-09-2007, 04:04 AM
I strongly suspect the two anemometers (not speedometers, btw) were a specific request of the ministerial directive which originated the birth of the first Italian monoplane fighters.

Whether this was done - as Abraxa suggests - to monitor the attitude in flight or to keep a keen eye on the relative speeds of the wingtips (the first generation of Italian monoplanes seemed to have a propension for high speed stalls, a phenomenon previously unknown in a nation that had relied on biplanes for its air defence), or even because the anemometers used might have been prone to misfunctioning and doubling them would have been a sensible measure, I cannot tell.

Surely G. 50, C.200 and Umbra T.18 had the same arrangement of instruments (the IMAM Ro.51 seems to have been an exception), so it is very likely that the double pitot's tubes were a request from the Ministry.


S!

Gatt59
05-09-2007, 12:06 PM
Well, I have at least three new idiots in my book: Gibbage, Nimits and Tagert. WTG guys, you know how to make friends.

Gibbage1
05-09-2007, 02:56 PM
Originally posted by Gatt59:
Well, I have at least three new idiots in my book: Gibbage, Nimits and Tagert. WTG guys, you know how to make friends.

Whoo hooo!!! I gots me a new internet buddy! Ill put you in my friends list right next too Veltro who has been my buddy since the .50's got fixed and the P-38 was put in. He loved me after that!

Targ
05-09-2007, 07:24 PM
All right ladies,
enough cat fighting, get along or I will ban each and every single person remotely involved.
Have a nice day http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif