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fusionsx00 · 12-08-2011, 01:53 PM

ok, so I get that now

the data in the log , is what your saying is bogus

I agree,

I'm gona take a breather from this, this is spiraling off one post , and I don't think its related.

hopefully you don't interpert it as me saying something bad about the sk.

but I guess its open to interpretation, and that's where the issue is, if its not clear ask me.

PakledHostage · 12-08-2011, 02:43 PM

Quote:

Originally Posted by fusionsx00

let's say your driving a car with accelerometers, at what speed would you be traveling just

before a accident to get the same magnitude in that log.

The plot you're looking at is a fourier analysis. It tells you something about the height, frequency and shape of the vibration waves, not the amount of acceleration. The accelerometers are just the instrument that is measuring the vibration.

By analogy, a fourier analysis tells you about the height, shape and frequency of the waves on the lake, it doesn't tell you how high the lake is above sea level. You're measuring a "lake" with very violent waves on it.

The question is whether the sensor is reading correctly and your helicopter really is shaking like a washing machine, or the sensors are off.

georgi UK · 12-08-2011, 02:57 PM

Quote:

Originally Posted by fusionsx00

ok, so I get that now

the data in the log , is what your saying is bogus

I agree,

I'm gona take a breather from this, this is spiraling off one post , and I don't think its related.

hopefully you don't interpert it as me saying something bad about the sk.

but I guess its open to interpretation, and that's where the issue is, if its not clear ask me.

=] never ever questioned the validity of your logs, just the content they show, really if there were something wrong with the SK I would post a sticky saying so, like DONT FLY THIS THING,

this happened with a 2.0 rev tail issue poll where over 50% of pilots had issues, mine was grounded, I couldn't fly on that rev. it was crap I will say so and didn't pretend otherwise!! we got the fix!

fusionsx00 · 12-08-2011, 10:04 PM

don't worry the helis with the units are grounded, I drained my packs down for strorage ,

but that was on the ground.

packled,

actually any axis would do ,let's say z , car with a mass of 3000 lbs
a simple calcualtion of any axis would do , just looking for the acelleration equal to the let's

say 50 m/s^2 same as the graph, single axis, let's leave gravity (9.807)out too.

how ever you could go as complex as you like.

fun as it may sound its not important, but if your a bored have at it.

desertstalker · 12-08-2011, 10:54 PM

Quote:

Originally Posted by fusionsx00

actually any axis would do ,let's say z , car with a mass of 3000 lbs
a simple calcualtion of any axis would do , just looking for the acelleration equal to the let's

say 50 m/s^2 same as the graph, single axis, let's leave gravity (9.807)out too.

how ever you could go as complex as you like.

fun as it may sound its not important, but if your a bored have at it.

A car crash is rather complex but for sinplistic example decellerating from 50m/s to 0 in 1s would give your 50m/s^2 deceleration although more reasonable in the real world is going from 5m\s to 0 in 0.1s. 5m/s is about 11mph so its likely equal to an impact at that kind of speed.

Keep in mind that you can get the same speed by dropping something from approximately half a meter above the ground.

Is not the magnitude scale in "G" rather than ms^-2? so a 50 on that scale would be 50G (or very roughly a drop from 5m on to a hard surface).

jperkosk · 12-09-2011, 01:25 AM

Quote:

Originally Posted by desertstalker

Is not the magnitude scale in "G" rather than ms^-2? so a 50 on that scale would be more like 500G (or very roughly a drop from 5m on to a hard issue).

It's the other way around, DS. 50 ms^-2 is about 5 g, not 500.

desertstalker · 12-09-2011, 02:24 AM

Quote:

Originally Posted by jperkosk

It's the other way around, DS. 50 ms^-2 is about 5 g, not 500.

Bah, yep, your correct. Ill edit the post.

CoolHandLuke · 12-10-2011, 12:10 AM

gees you guys with all your smart talk are making my head hurt.

can you say testosteron spraying fight, heads up everyone ! lol

now i'm just kidding, ok ? just tring to keep the mood light......

fusionsx00 · 12-10-2011, 12:34 AM

its just for fun, and to have a refrence of what the numbers on the scale are.

we did a lot of problems like this in my electromechanics class, let's oof head aches.

good news is that I got my patch today, its nothing new, same rev as everyone else.

thanks art,

CoolHandLuke · 12-10-2011, 12:43 AM

is that good news or bad ?

fusionsx00 · 12-10-2011, 01:06 AM

well, its good news

I didn't need anything more than a fix/patch.

just to stop or prevent what was affecting my accelerometers.

I will fly it very carfully, after I've flown it around a good 30 flights and if the unit works

fine, the acellerometers are happy I'm good to go.

Luvmyhelis · 12-10-2011, 01:10 AM

Quote:

Originally Posted by fusionsx00

well, its good news

I didn't need anything more than a fix/patch.

just to stop or prevent what was affecting my accelerometers.

I will fly it very carfully, after I've flown it around a good 30 flights and if the unit works

fine, the acellerometers are happy I'm good to go.

Man, I am sooo happy for you bro. This is fantastic news.

jperkosk · 12-10-2011, 04:06 AM

Photos, videos and reports, please.

fusionsx00 · 12-10-2011, 05:32 AM

Quote:

Originally Posted by jperkosk

Photos, videos and reports, please.

jper,

you sound as anxoius as a prom date at a party with liquor. just got this and it was dark already, but that usb was in there before I finished reading.

all I due time( yes my alarm is set for sunrise)

jperkosk · 12-10-2011, 06:21 AM

What gave you this impression, Fusion, did I let slip something?

Take your time, buddy, no pressure at all

So back to the topic: lights, camera, action!

georgi UK · 12-10-2011, 12:05 PM

=] good to see this response! you deserve a medal here!!

fusionsx00 · 12-13-2011, 01:05 AM

hmm a medal,

ive been playing medal of honor though.

well it takes alot for me not to be out flying, and rain , and high winds today .

im ready to go, i flew last night under a parking lot light, not fun.

im hoping for better weather tommorow.

fusionsx00 · 12-13-2011, 01:03 PM

well its not much better today, but what the hell

im gona go scenic flying, got half of my packs charged

fusionsx00 · 12-13-2011, 03:01 PM

hmm how do i go about this??

well it flew ok, no crashes. i got in about 4 flights then it started raining.

i got some video , and i just looked at the logs. i did a few high speed passes , so when i saw a acceleration of 36m/s^2 i didnt think too much of it.

then i ran the playback side by side, and the heli is just sitting there, im going into a front loop, but its pretty slow, i guess ill send it over to art, i dont think the patch worked.

heres the video , pretty uneventful, besides the constant drift in sl, in diffrent directions
sometimes left, sometimes back
http://youtu.be/IsUKQdcZc9o
http://www.youtube.com/watch?v=IsUKQ...ature=youtu.be

Skookum · 12-13-2011, 04:15 PM

Actually, just from that screenshot of a plot I can see that the accel patch is working for this flight.

Drift in SL in different directions is most likely just wind gusts, it's hard to tell otherwise unless conditions are very calm.

12-10-2011, 04:06 AM	#73 (permalink)
jperkosk Registered Users My HF Map location Join Date: Dec 2009	Photos, videos and reports, please. __________________ Jerry Trex 700N Pro fbl, 600N Pro x 2, 450SE v1, 250 v2 fbl, Compass 6HV fbl, Blade 450x, 400, 300x, 130x, mCPx, 120SR, mQx, mSR, Rotor Concepts HPQ1, Walkera CB180Q, CB100, Novus FP, CP, Esky Hunter, Big Lama.

12-10-2011, 06:21 AM	#75 (permalink)
jperkosk Registered Users My HF Map location Join Date: Dec 2009	What gave you this impression, Fusion, did I let slip something? Take your time, buddy, no pressure at all So back to the topic: lights, camera, action! __________________ Jerry Trex 700N Pro fbl, 600N Pro x 2, 450SE v1, 250 v2 fbl, Compass 6HV fbl, Blade 450x, 400, 300x, 130x, mCPx, 120SR, mQx, mSR, Rotor Concepts HPQ1, Walkera CB180Q, CB100, Novus FP, CP, Esky Hunter, Big Lama.

12-10-2011, 12:05 PM	#76 (permalink)
georgi UK Join Date: Mar 2007	=] good to see this response! you deserve a medal here!! __________________

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12-08-2011, 01:53 PM	#61 (permalink)
fusionsx00 Registered Users Join Date: Sep 2010	ok, so I get that now the data in the log , is what your saying is bogus I agree, I'm gona take a breather from this, this is spiraling off one post , and I don't think its related. hopefully you don't interpert it as me saying something bad about the sk. but I guess its open to interpretation, and that's where the issue is, if its not clear ask me.

12-08-2011, 10:04 PM	#64 (permalink)
fusionsx00 Registered Users Join Date: Sep 2010	don't worry the helis with the units are grounded, I drained my packs down for strorage , but that was on the ground. packled, actually any axis would do ,let's say z , car with a mass of 3000 lbs a simple calcualtion of any axis would do , just looking for the acelleration equal to the let's say 50 m/s^2 same as the graph, single axis, let's leave gravity (9.807)out too. how ever you could go as complex as you like. fun as it may sound its not important, but if your a bored have at it.

12-10-2011, 12:10 AM	#68 (permalink)
CoolHandLuke Registered Users Join Date: Nov 2011	gees you guys with all your smart talk are making my head hurt. can you say testosteron spraying fight, heads up everyone ! lol now i'm just kidding, ok ? just tring to keep the mood light......

12-10-2011, 12:34 AM	#69 (permalink)
fusionsx00 Registered Users Join Date: Sep 2010	its just for fun, and to have a refrence of what the numbers on the scale are. we did a lot of problems like this in my electromechanics class, let's oof head aches. good news is that I got my patch today, its nothing new, same rev as everyone else. thanks art,

12-10-2011, 12:43 AM	#70 (permalink)
CoolHandLuke Registered Users Join Date: Nov 2011	is that good news or bad ?

12-10-2011, 01:06 AM	#71 (permalink)
fusionsx00 Registered Users Join Date: Sep 2010	well, its good news I didn't need anything more than a fix/patch. just to stop or prevent what was affecting my accelerometers. I will fly it very carfully, after I've flown it around a good 30 flights and if the unit works fine, the acellerometers are happy I'm good to go.

12-13-2011, 01:05 AM	#77 (permalink)
fusionsx00 Registered Users Join Date: Sep 2010	hmm a medal, ive been playing medal of honor though. well it takes alot for me not to be out flying, and rain , and high winds today . im ready to go, i flew last night under a parking lot light, not fun. im hoping for better weather tommorow.

12-13-2011, 01:03 PM	#78 (permalink)
fusionsx00 Registered Users Join Date: Sep 2010	well its not much better today, but what the hell im gona go scenic flying, got half of my packs charged

12-13-2011, 03:01 PM	#79 (permalink)
fusionsx00 Registered Users Join Date: Sep 2010	hmm how do i go about this?? well it flew ok, no crashes. i got in about 4 flights then it started raining. i got some video , and i just looked at the logs. i did a few high speed passes , so when i saw a acceleration of 36m/s^2 i didnt think too much of it. then i ran the playback side by side, and the heli is just sitting there, im going into a front loop, but its pretty slow, i guess ill send it over to art, i dont think the patch worked. heres the video , pretty uneventful, besides the constant drift in sl, in diffrent directions sometimes left, sometimes back http://youtu.be/IsUKQdcZc9o http://www.youtube.com/watch?v=IsUKQ...ature=youtu.be

12-13-2011, 04:15 PM	#80 (permalink)
Skookum Registered Users Join Date: Jan 2008	Actually, just from that screenshot of a plot I can see that the accel patch is working for this flight. Drift in SL in different directions is most likely just wind gusts, it's hard to tell otherwise unless conditions are very calm.

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