Is using less pitch on a prop reduces torque?
12-12-2002 | 05:46 PM
#51
Senior Member
Is using less pitch on a prop reduces torque?
Is this truck question for real?
If a model helicopter was floating in the cargo bay of the space shuttle, would you have to be concerned about its mass when figuring out how long to fire the rockets in order to accelerated the shuttle to some desired speed. No... until it banged into the side of the bay... then yeah. The trucks the same... except you've got a bunch of air blowing around to complicate matters.
p.s.
Anybody here ever heard of Schroedinger's cat? Now we have a new one, Schroedinger's model helicopter.
If a model helicopter was floating in the cargo bay of the space shuttle, would you have to be concerned about its mass when figuring out how long to fire the rockets in order to accelerated the shuttle to some desired speed. No... until it banged into the side of the bay... then yeah. The trucks the same... except you've got a bunch of air blowing around to complicate matters.
p.s.
Anybody here ever heard of Schroedinger's cat? Now we have a new one, Schroedinger's model helicopter.
12-12-2002 | 06:26 PM
#52
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From: Los Angeles,
CA
Is using less pitch on a prop reduces torque?
Schroedinger's cat?
Isn't that the one that is stuck in a box with a decaying atom that might trigger a device that kills it?
The theory being that the probability of the decaying atom controls the life of the cat and that probably only exists if you look at it. Therefore, using classic probability theory, the cat is both dead and alive.
- Or something like that!
DC
- now back to this helicopter (argh!) . . . Did Einstein fly helicopters?
Isn't that the one that is stuck in a box with a decaying atom that might trigger a device that kills it?
The theory being that the probability of the decaying atom controls the life of the cat and that probably only exists if you look at it. Therefore, using classic probability theory, the cat is both dead and alive.
- Or something like that!
DC
- now back to this helicopter (argh!) . . . Did Einstein fly helicopters?
12-12-2002 | 06:31 PM
#53
Senior Member
Is using less pitch on a prop reduces torque?
yeah, that's it... alive and dead. The helicopter in the truck with the questionable weight reminded me. Is the helicopter hovering in there, or is it not?
12-12-2002 | 07:23 PM
#54
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From: Sebring, FL
Way off topic, but...
Maybe this should be moved to its own thread, but I'll continue anyway (Don't read this if you'd like to know the answer to the torque-rolling question).
Follow this:
A train is running down a straight, level section of track at let's say 60 MPH. A fly is flying level at a heading 180 deg. off of the train, over the tracks, and its speed is not important (neither is the trains for that matter). The two collide.
I believe most people will agree with the following statement. Since the fly is now traveling at 60 MPH in the exact opposite direction it started in (what's left of it anyway...), it would be fair to say that it had to decelerate to 0 MPH and then accelerate to 60 MPH. The reason for the decelaration was the collision with the train, and started simultaneously with the contact between the fly and the train.
If all the above is true, then the fly - during the collision - caused the train to stand still! We already said the fly had to be motionless to change direction, and the train was in contact with the fly, so the train was motionless.
Go figure.....
Willem
Follow this:
A train is running down a straight, level section of track at let's say 60 MPH. A fly is flying level at a heading 180 deg. off of the train, over the tracks, and its speed is not important (neither is the trains for that matter). The two collide.
I believe most people will agree with the following statement. Since the fly is now traveling at 60 MPH in the exact opposite direction it started in (what's left of it anyway...), it would be fair to say that it had to decelerate to 0 MPH and then accelerate to 60 MPH. The reason for the decelaration was the collision with the train, and started simultaneously with the contact between the fly and the train.
If all the above is true, then the fly - during the collision - caused the train to stand still! We already said the fly had to be motionless to change direction, and the train was in contact with the fly, so the train was motionless.
Go figure.....
Willem
12-12-2002 | 07:53 PM
#57
Senior Member
Is using less pitch on a prop reduces torque?
If a helicopter hovers in a truck, but no one is there to weigh it, did it really hover?
In by brief experience, all threads degenerate sooner or later.... but this one takes the cake.
In by brief experience, all threads degenerate sooner or later.... but this one takes the cake.
12-12-2002 | 09:56 PM
#58
Is using less pitch on a prop reduces torque?
What a bunch of bored writers - all of the old cunundrums about the fly in the airplane - etc--
Obviously you guys have no interest in why the different props work as they do.
Here is one for you guys -
If "how long would it take a woodpecker with a wooden leg to kick all the seeds from a barrel of dill pickles?"
Obviously you guys have no interest in why the different props work as they do.
Here is one for you guys -
If "how long would it take a woodpecker with a wooden leg to kick all the seeds from a barrel of dill pickles?"
12-23-2002 | 09:54 PM
#60
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From: Airfield,
CA
Is using less pitch on a prop reduces torque?
Looks like going to lesser pitch reduces the torque. Going from 18x8 to 18x6W made my torque roll speed slower. Not much, but better. Now it's a bit easier to control. Thanks for all the help guys.
