X-56 Moment of Inertia Tests

Рет қаралды 29,849

NASA Armstrong Flight Research Center

7 жыл бұрын

In this 3-minute, 44-second video, engineers at NASA’s Armstrong Flight Research Center examined the X-56 Multi-Use Technology Testbed as the aircraft underwent “moment of inertia” testing in the Center’s Flight Loads Laboratory (FLL).
The tests, which were the final series for the vehicle in the FLL, featured a swing test to determine how easy or difficult it is for the vehicle to pitch up or down. Tools to assist researchers during the tests included everything from a laser ball and tracker to a simple stop watch. Data from the tests will go toward updating the finite element model, bringing the team closer to possible flight testing.

Пікірлер: 12

@richardkruger2357 5 жыл бұрын

Which accuracy was reached? And how do you validate the results?

@rikgroenewegen4397 6 жыл бұрын

Hi guys, i watched the video and used the formula given around 2:17. A small mistake is made, you guys forgot to write the "length, pivot axis to CG of airplane" squared.

@johnfinan2634 2 жыл бұрын

I came to the same conclusion

@angiuninja4758 2 жыл бұрын

What are W and P in the formula please ?

@rikgroenewegen4397 2 жыл бұрын

@@angiuninja4758 Weight & Period

@johannesschuster256 5 жыл бұрын

One should expect, that countersunk screws are used not to produce falsifying vortex. Lippisch did such things without circuitous pendulum watching for what so ever. Either the CG fits geometrically and by balance or the ACFT makes its way to the yard. And static inertia has nothing to do with aerodymanic caused reactiontime. The rest is for density and OAT. Flying makes wiser than drafting.

@gamev1.5 7 жыл бұрын

May I use this video for a project i'm doing?

@user-fb6js7vt3u 2 жыл бұрын

@corb.6837 6 жыл бұрын

LOL, I know helmets are for safety, but really, do they have to wear them while test like that?

@joryferrell7244 Жыл бұрын

They pay for insurance. If the craft swings back while someone is already accidentally offbalance, they might fall, and crack their head on something. I agree it's an extreme level of safety...but better have it and not need it than to need it and not have it. Imagine all the people who thought they didn't need to wear a seatbelt and were ejected from their vehicle in a crash...they thought it would never happen to them.