Gyroscopic Instruments - U.S. Navy Aviation Training Film (1960)

Design and theory of operation of electric gyro instruments. Turn and Slip Indicator, Attitude Indicator, and Directional Gyro.

[@themongru]

Excellent video, was much easier to understand than a long-winded chapter in a textbook.

[@alext9067]

The explanation of precession at around 3:20 is enough to make the learned forget what they knew. Now i remember why school sucked. How to make something that's simple sound like a foreign language.

[@goognamgoognw6637]

they knew how to make no BS videos then.

[@sayochikun3288]

Because every second of the film costs money

[@insfree]

I love and am indebted to this video... Despite the audio being weak. This is the only gyro video that helped me understand and get through my aircraft maintenance engineering license exam.

[@weirdsciencetv4999]

I wish they still made straightforward instructional videos like this

[@2degreewca]

I call videos like this "ego free." So many instructional videos nowadays seem to be as much about the presenter as they are about the subject matter or else they're unscripted, overly lengthy and digressive.

[@jastrebok]

Army always has the best instructional videos for such devices :)

[@2serveand2protect]

Simple & straight to the point. Very well done - big thanks!

[@stephanesylvain577]

From the 60s and still used by flying school. Thank for the video

[@captDDay]

Ive not seen a better video on Gyro instruments... Thanks for unclasifying it.

[@naveensinghjugtwan200]

great video

[@williambarela2791]

This is amazing! It seems that educational videos these days just water down topics to the point that you don't really get any information. This training film covers in 20mins what it would take 200hours to explain with the current method of making such videos. Sad...

[@goognamgoognw6637]

excellent observation, i agree. There is a discomfort today with handling a high degree of complex principles. Even academics cannot make powerful dense classes.

[@gdixneuf]

That's help me in my IFR training course !!!

[@TmanTV3]

This video went perfectly with the chapter I was supposed to read for ground school.

[@pdu999]

Always been unclassified :-) They showed this in Navy Flight school in the early 80's unclassified; and it was old then - but still completely accurate, a great video then, and still now ....

[@doctorpanigrahi9975]

You must be old !

[@stanleycates1972]

Interesting

[@joesmith9330]

and children thats how it was done and today its completly different. people still used star nav with this and regular magnetic compasses. the limitations set back submarine navigation and got a lot of planes lost at sea.

[@auro1986]

Why don't they make good documentaries like this nowadays?

[@yellowhammer4747]

Probably because no one today can understand them. With our wonderful education system in the US.

[@robhofer8137]

...it doesn't "fit" with they're desired direction of the country!...it's a big "game" to the powers that be!

[@ShakespeareCafe]

Documentaries are now entertainment, complete with cloying musical accompaniment

[@goognamgoognw6637]

dumbification of the thought process. Degenerate media.

[@miguelmouta5372]

@@yellowhammer4747All over the planet, education is inversely proportional to the number of population. Semi-illiteracy rules .

[@rumpastumpa]

sitting down for a Gnd Brief from 1960

[@ig00g1e]

19:14 Apparent drift as it approaches to poles- it is automatically adjusted based on latitude that was entered manually and must be manually corrected when latitude changes. That seems like on major contradiction to me.

[@lelabodemichel5162]

What is automatic is the real time compensation of the drift, that is to say that the precession rate of the gyro equals the drift due to the latitude (meridian convergence). However you need to adjust the latitude and select the right hemisphere to have the correct compensation.

[@ericfermin8347]

Focus!

[@LRDan-qg1ve]

We knew we were headed to blue water when the gyro was cranked

[@davidelmer7978]

what happened to the quality of the format?

[@A5Maverick]

Does home depot or auto zone has all the parts I need to make a electronic gyroscopic instrument?

[@goognamgoognw6637]

not at all, you'd have to look at electronics parts online stores like digikey or mouser.

[@andreyfedorov380]

Check my cool contrail from engines exhaust here!

[@jacewalton6677]

Searched gyroscopic instruments and was looking for the shortest video. Then I saw a black and white video 20 min longand clicked

[@rgfisch]

Sounds like Peter Graves narrating.

[@Graymenn]

@4:55 Can anyone explain to me how these "electrical or mechanical sensing elements" can tell the difference between "apparent drift" and the actual movement of the aircraft?

[@2degreewca]

In an air-driven attitude gyro, there are "pendulous vanes" suspended from pivots attached to the lower portion of the sealed gyro housing, one vane for each exhaust port. The vanes are positioned so that, when the gyro is erect, each vane half-covers its associated exhaust port. If the gyro tilts (or drifts) so that its axle is not plumb, the pendulous vanes shift so that one exhaust port is more-than-half-covered and the opposite exhaust port is less-than-half-covered. The resulting imbalance of discharge air exerts a force on the rotor housing at right angles to the direction of tilt, causing the gyro to precess to the erect position. As soon as the gyro is erect, the pendulous vanes return to a balanced condition to remove the precessing force. For a drawing of the pendulous vanes: aviation.stackexchange.com/questions/11924/how-much-lag-does-an-attitude-indicator-experience

[@Graymenn]

2degreewca Thank you for your reply sir. So if I understand you correctly, the gyro chamber is kept at a positive air pressure to allow the exhaust drift correction system to work, and the force of a turn or unlevel (in relation to gyro orientation) attitude is enough to overcome the force of the exhaust drift correction system, thus it would not need to differentiate between a movement of the plane and the apparent drift of the rotation of the earth. (?) Assuming that is all correct would this system only work in level straight flight? The reason I am asking all of this is because I want to try an experiment for a physics class to see if I can determine my latitude from measuring the apparent drift of the gyroscope over a 6 hour period. In order to do my experiment I need to find a gyroscope that does not have a correction system, or find a way to disable it. Any recommendations on what to look for gyro wise? Thanks again for your reply.

[@2degreewca]

Gravity moves the vanes. The axis of the gyro is vertical and therefore perpendicular to the horizon. An attitude indicator uses the principle of rigidity in space. The gyro maintains its orientation as the aircraft essentially maneuvers around it. If the axis drifts from the vertical gravity acts on the pendulous vanes to precess the axis back to vertical. I'm afraid I don't have any recommendation for a gyro to use in your experiment other than to check with an aircraft instrument repair station at an airport in your area. I would like to know how your experiment turns out. It sounds quite interesting. Good luck.

[@johnjingleheimer-schmidt2793]

+Smedley Butler The electrical/mechanical sensing elements are a Macguffin (Hollywood term). In other words, it does not exist. They claim all gyroscopes have this mysterious invisible correction system added to explain why you will never observe any effects of earth's so-called "rotation" on gyroscopic orientation.

[@denniskarnes8680]

+John Jingleheimer-Schmidt you are 1000% correct!!! Too bad most people believe in all the mumbo jumbo bs of modern scientism.

[@johndef5075]

What powers the gyro?

[@cattnipp]

beer and cigarettes

[@alextvmantvman3894]

tested 4 directional gyros for days in different positions N/W/S/E, 2 x 28 volts ARC and RCA, one 115v 400hz BF Goodrich, and 1 Cessna vacuum gyro. NO drift on a bench, work perfectly in the car while driving. should test it before making stupid claims.

[@awatt]

Explain gyroscopes

[@warriorlink01]

If the gyroscopic force is the only thing needed as a measure of balancing force if a counter wieght is applied to the bottom of the gyroscope it shall keep it in a centered way according to gravity. I feel gyrosopic flying machines could be created in a manner similar to the helicopter yet, with an inside force when affected on the outside by wind allowing for control of pitch essentially gliders could be utilized as flying machines. With several gyroscopes set accordingly I believe a hover effect could very truly become produced and in affecting pitch in a gyroscope left without a wieght to keep it in accordance with gravity it essentially would have the abitity to yew and roll all very fast. Antigravity technology would further allow gyroscopes to make massive gains in perpetual motion and give the craft an ability to infinitely hover or fly without need for landing or any type of refueling until and repairs are needed. Solor power for controls would also be very benificial. Space travel and air travel would essentiallybe moved into a new age of travel and off world habitation. I predict the moon could be colonized in months duer to the ability for the craft to further at much great speeds then a spaceship. Godspeed!

[@DandSCreations]

Wow, gyroscopic instruments show the pilot things like the attitude of the aircraft. They don't fly the aircraft

[@warriorlink01]

Kyle Towers and what say ye of these errors with remedy rather than insult?

[@stevenswenson7041]

+warriorlink01 Gryoscopes can be be used to direct satellites attitude. not sure about propulsion. ERic Laithwaite thought there might be something to it.

[@warriorlink01]

I think his way would be more noisy howevr, it could have it's uses as a take off function.

[@warriorlink01]

Yes. I was pretty certain I had posted links however I suppose they have been removed or I did not post them here.

[@alextvmantvman3894]

every 6 hrs no drift whatsoever.

[@kallewirsch2263]

Which part of "there is an erection system which compensates for all sorts of misalignment to the local direction of down" did you not understand? In fact, it is a pretty simple mechanism

[@tommyhughes5571]

NO EARTH MOVEMENTPROOF!!!LIKE ALL OTHER EXPERIMENTS!!!GET IT?!!!

[@awatt]

Prove it

[@abazaba2276]

more proof the earth is not a spinning ball!!

[@omranyousef1277]

i'm confused, I thought gyroscope is mechanical and in this video he's saying its electrical !!!

[@2degreewca]

The gyro in and of itself is mechanical. The electrical is an add-on system that provides a means to improve the stability and accuracy of the mechanical part.

[@krisraps]

Now This Type Of Video Would Have 100 Bullshit Words And 1000 Ads

[@petero.7487]

Hang on, I thought a spinning gyro would always orient towards gravity? I figured a top would spin because of centrifugal force and hold itself up, while gravity kept the tip down

[@CaseyVan]

At 2:17 it explains that the gyroscope remains pointed in the same direction in space as the plane goes around the Earth it still remains pointed the same way. For Flat Earth conspiracy theorists this is proof that the Earth is round, not flat. If you don't believe this video, then you need to go up in an airplane and prove it's flat. To compensate for this on modern aircraft they use a computer. Here's a brief explanation: "The INS computer corrects for this perceived rotational force by entering a correction. Transport Wander (Remer / McLean use the term Transport Rate) is this perceived rate of rotation. The IRS figures out this rate and the subtracts that value from the measurements. If you want to know how it figures out this rate…well, read the book." Paul Tocknell on Mar 23, 2011

[@CaseyVan]

+Casey Van Paul Tocknell on Mar 23, 2011 The INS computer corrects for this perceived rotational force by entering a correction. Transport Wander (Remer / McLean use the term Transport Rate) is this perceived rate of rotation. The IRS figures out this rate and the subtracts that value from the measurements.

[@johnjingleheimer-schmidt2793]

+Casey Van It's only proof if that's what actually happens. It doesn't. That's why the people who attack flat-earth proofs now claim that the gyroscope should NOT change orientation, "because inertia". If you want to know what's true, look for yourself and don't believe things you will not verify.

[@rjohnson8ball]

+John Jingleheimer-Schmidt I see nothing inconsistent with what +Casey Van said. Every 66.7 mi of travel, "horizontal" has changed by 1 degree. On small trips it hardly matters. In long trips I am glad a computer compensates for it. By the way, is your middle name "Jacob"?

[@denniskarnes8680]

+Robert Johnson what about all the planes that navigated successfully for ALL THOSE YEARS before electronics????? What? Magic you say?

[@rjohnson8ball]

+Dennis Karnes I don't understand your point. A pilot without electronics views the earth's horizon and ground objects to generally stay level, and perhaps he can sense the air thinness/thickness for a sense of altitude. A pilot would find it impossible to sense one degree of earth curvature every 67 miles (over several minutes of time). Whether the earth was curved or flat, without instruments the pilot would think and fly the same way.

[@Nub00005]

But then when I buy my own gyroscope & gimbals kit. It's not affected by apparent drift. The Earth is not rotating people. It's obviously a flat motionless Earth. They call it an air PLANE not an air SPHERE because it moves in a straight line above a flat, non rotating Earth. Don't believe me? Go buy your own gyroscope then set it up for 15 minutes

[@peterhoebarth4234]

Colton, the gimbal is straith, that proofs flat earth (9. 45)

[@awatt]

Planes fly in the atmoSPHERE. Globe confirmed 🌎

[@alextvmantvman3894]

not a 1 degree, 90 degrees my ass in 6hrs.

[@gholamhassani758]

Thank God you block and delete flat earth comments... I was beginning to think it wasn’t real...

[@peterhoebarth4234]

Lol