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-   -   does a twin engine lose its gyroscopic properties of inertia? (http://forum.fulqrumpublishing.com/showthread.php?t=34525)

raaaid 09-22-2012 01:31 PM

does a twin engine lose its gyroscopic properties of inertia?
 
once in a physics forum from which now im permabanned i was brought down an argument which would violate conservation of moment by the main thinking head of the forum on the basis that two counterotating gyros as can be a planes lose their increased resistance to spin since theyre counter rotating

i feel he scammed as ive seen him lying another time not to disprove certain dogma

so my question:

a two propeller plane offers the same resistance to yaw when at full revolutions that when stopped?

69iAF~Mike 09-22-2012 01:42 PM

What, you mean this?
http://en.wikipedia.org/wiki/Counter...ing_propellers

raaaid 09-22-2012 01:46 PM

really that doesnt answer my question

precesions certainly eliminated, but what about inertia, that is resistance to yaw?

edit:

well this proves that guy right:

http://www.youtube.com/watch?v=bzbVw...layer_embedded

edit:

here creating huge momentum from zero just as the universe does, hey but you can destroy momentum two if you go from to to one:

http://i40.photobucket.com/albums/e2...-09_202631.jpg

Hood 09-22-2012 10:55 PM

Quote:

Originally Posted by raaaid (Post 462952)
edit:

here creating huge momentum from zero just as the universe does, hey but you can destroy momentum two if you go from to to one:

http://i40.photobucket.com/albums/e2...-09_202631.jpg

And here we have another typical Raaaid thread. First the question, which isn't really a question anyway as it's half-baked, that has apparently already been discussed, so there is no point in discussing it.

Secondly, and more importantly, someone replies giving him a BS excuse for posting a youtube clip and some crappy drawing that doesn't mean anything, plus some mystic-scientific babble that is more written diarrhoea.

SSDD sums it up.

Hood

Verhängnis 09-23-2012 02:48 PM

He doesn't even understand his own question lol.

Inertia is the tendency to resist change in motion, as described by Newton. He is referring to torque, which doesn't affect yaw, but affects roll due to the third law of motion that every action has an equal and opposite reaction; hence a prop spinning left will make the aircraft roll right.
When a prop affects yaw, this is the corkscrew slipstream effect, of which is corrected by angling the keel on some aircraft.

And a diagram just to help you:
http://www.hagenheckel.de/bilder/prop2.jpg
http://www.hagenheckel.de/bilder/prop1.jpg

:rolleyes:

But, counter-rotating and contra-rotating (to some extent) cancel out these effects, at least under my understanding of physics.

raaaid 09-23-2012 03:58 PM

conservation of angular momentum debunked:

you are in a bimotor with both propellers at full revolutions:

total monetum zero since they conter rotate

now you aim the right propeller to the right and the left propeller to the left

now you HAVE CREATED a huge angular momentum

science is a lie, bernuilli, friction, conservation of momentum, relativity..., the new church whose dogmas hide free energy or time travel

DairyAir 09-23-2012 09:36 PM

Sir

With all due respect!

You might want to talk to your Physician, I believe that your medication might not be effective. :-P

Quote:

Originally Posted by raaaid (Post 463214)
conservation of angular momentum debunked:

you are in a bimotor with both propellers at full revolutions:

total monetum zero since they conter rotate

now you aim the right propeller to the right and the left propeller to the left

now you HAVE CREATED a huge angular momentum

science is a lie, bernuilli, friction, conservation of momentum, relativity..., the new church whose dogmas hide free energy or time travel


ACE-OF-ACES 09-23-2012 10:31 PM

Quote:

Originally Posted by raaaid (Post 462947)
once in a physics forum from which now im permabanned i was brought down an argument which would violate conservation of moment by the main thinking head of the forum on the basis that two counterotating gyros as can be a planes lose their increased resistance to spin since theyre counter rotating

i feel he scammed as ive seen him lying another time not to disprove certain dogma

so my question:

a two propeller plane offers the same resistance to yaw when at full revolutions that when stopped?

I think it is time for 1C to provide raaaid his own sub section in this forum..

The only question is what should 1C call it?

I have a few ideas..

1) Hair Club for Men
2) Black Hole
3) Warning time spent here will be a waste of time

Anyone else got any ideas as to what to call it?

Maybe we should start a poll on this? :confused:

hiro 09-24-2012 06:29 AM

http://www.youtube.com/watch?v=3_RhISgoXUs


http://www.youtube.com/user/minuteph...&view=0&page=2



BAM!

Sternjaeger II 09-24-2012 12:41 PM

can we ban this muppet for good please?! :evil:


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