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Search: Posts Made By: BGRing
Showing results 1 to 35 of 44
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Forum: Flight Testing
19th Apr 2010, 22:36
Replies: 50
Views: 21,874
Posted By BGRing

Devil test pilots like to eat and be eaten by members...

test pilots like to eat and be eaten by members of their preferred sex?
1.3 x 1.3 - 1.69

I am not sure if that will point you in the right direction


Silly/Stupid joke aside.

it is...
Forum: The Pacific: General Aviation & Questions
15th Apr 2010, 23:24
Replies: 74
Views: 14,623
Posted By BGRing

Red face YouTube - Red Bull Air Race Plane Crash In Perth...

YouTube - Red Bull Air Race Plane Crash In Perth Pilot Adilson Kindlemann OK www.AirCrashObserver.com (http://www.youtube.com/watch?v=iWcvmOD1BsA)

second guessing myself. Not a Stall.

He did...
Forum: The Pacific: General Aviation & Questions
15th Apr 2010, 22:38
Replies: 74
Views: 14,623
Posted By BGRing

Tip Stall

OK So there is Supposedly no such thing as a tip stall. So let me just reword that to One wing dropped and the other popped.

Left wing dropped due to over reaching the Clmax AoA with Aileron...
Forum: Spectators Balcony (Spotters Corner)
28th May 2008, 10:43
Replies: 2
Views: 492
Posted By BGRing

Weight on wheels at 3/4 Lift speed and Rotation

hehe.
I have been annoying pilots for the past 7 months with variations on this one.
Wont tell you just yet how it came about.
but for now.

(Usual 747 or 737 or 777 320 pilots)
I have asked...
Forum: Flight Testing
15th Dec 2007, 10:30
Replies: 15
Views: 2,504
Posted By BGRing

neat elegant ? I think not. Could it be...

neat elegant ?
I think not.

Could it be done. (Yes)

Would it be correct. Not the first few hundred experiments with any Long Complicated Formula.

Imagine trying to calculate how a hand...
Forum: Flight Testing
15th Dec 2007, 00:03
Replies: 47
Views: 19,337
Posted By BGRing

http://www.knifeedge.com/forums/downloads.php?do=f...

http://www.knifeedge.com/forums/downloads.php?do=file&id=3768
Will be as close as I will ever Get :\

http://www.knifeedge.com/forums/downloads/screenshot1196601287_8et.jpg

John.

Are you...
Forum: Rotorheads
27th Sep 2007, 18:59
Replies: 12
Views: 2,773
Posted By BGRing

Thank you David for Replying to this thread. To...

Thank you David for Replying to this thread.
To assist you.
I also placed it in two other Sub forums. due to similar relevance.
Private Flying http://www.pprune.org/forums/showthread.php?t=293589...
Forum: Rotorheads
25th Sep 2007, 11:39
Replies: 12
Views: 2,773
Posted By BGRing

I wonder how much the spiral flow will cause it...

I wonder how much the spiral flow will cause it to rotate right ?


I was also wondering if the ailerons were inward enough to be in the Flow so as it could still have roll control.
When I...
Forum: Flight Testing
25th Sep 2007, 11:13
Replies: 1
Views: 1,657
Posted By BGRing

Can a Toucan hover?

Sorry to post this again. just that even you test Guys/Gals need an interesting distraction.

I have posted this in Private fly and Rotor heads. and thought you guys and gals would possibly be...
Forum: Rotorheads
25th Sep 2007, 11:04
Replies: 12
Views: 2,773
Posted By BGRing

Can a Toucan hover?

My guess is it will :)
Sorry for posting it! but Hay "It is Exciting".

Turbo Prop Biplane 1.5:1 Thrust to weight. (http://www.turbinetoucan.com/)...
Forum: Private Flying
25th Sep 2007, 10:54
Replies: 1
Views: 965
Posted By BGRing

Can a toucan hover ?

My guess is it will :)
Sorry for posting it! but Hay "It is Exciting".

Turbo Prop Biplane 1.5:1 Thrust to weight. (http://www.turbinetoucan.com/)...
Forum: Rotorheads
10th Aug 2007, 17:54
Replies: 156
Views: 20,849
Posted By BGRing

Thanks waspy, I changed that first post to...

Thanks waspy, I changed that first post to Radius. you were correct and I thank you for Pointing it out :)

looking at you method of calculation. I understand what you are doing. you are getting...
Forum: Rotorheads
10th Aug 2007, 10:04
Replies: 156
Views: 20,849
Posted By BGRing

One blade is 25.3cm Blade bolt to Blade tip (Not...

One blade is 25.3cm Blade bolt to Blade tip (Not going Diagonal, IE same distance from LE at tip). and the Bolt to Hub axis is about 2.3cm So my calculations are wrong because I used wrong length to...
Forum: Rotorheads
10th Aug 2007, 06:01
Replies: 156
Views: 20,849
Posted By BGRing

Post #1 Picture 2 top right diagram portion. ...

Post #1 Picture 2 top right diagram portion.
with the rotation velocity being Higher between points D to C than they are between Points A to B. it stands to reason that the CF is greater between the...
Forum: Rotorheads
10th Aug 2007, 05:26
Replies: 156
Views: 20,849
Posted By BGRing

Meaningful answer

seeing this is an Interesting discussion. and everyone is refreshed on Centripetal and Centrifugal and torque forces . not to mention a Couple of Coupled moments.

Could some one help me on this...
Forum: Tech Log
26th Jul 2007, 23:51
Replies: 26
Views: 16,748
Posted By BGRing

Reading this thread has helped me. (I...

Reading this thread has helped me. (I think:confused:)

I think I understand what is going on. (re span wise flow from root to tip)

Please Educate me if I have it drastically wrong or even...
Forum: Rotorheads
19th Jul 2007, 11:03
Replies: 57
Views: 19,901
Posted By BGRing

Thanks for the link. That thing has me buged...

Thanks for the link. That thing has me buged also.

I dont dispute the Phenomenon. just the Explanation of what is happening.
untill recently I would have said something like the following;

...
Forum: Rotorheads
18th Jul 2007, 02:52
Replies: 57
Views: 19,901
Posted By BGRing

Davey. I think I know what You mean My...

Davey. I think I know what You mean

My keyboard has no numpad so I can not do Alt codes.

as I had put it above 1/2 x roh x VSquared would work on it own. But that is not the formula so if the...
Forum: Rotorheads
17th Jul 2007, 11:22
Replies: 57
Views: 19,901
Posted By BGRing

seeing as you are online. I will type a quick...

seeing as you are online. I will type a quick reply.

Thanks for the Reply and effort.
I ahavent read it yet. and I dont Imagin I will understand it first time round.

Will get back with my...
Forum: Rotorheads
17th Jul 2007, 10:42
Replies: 57
Views: 19,901
Posted By BGRing

1/2? x Rhox (V squared) is derived by integrating...

1/2? x Rhox (V squared) is derived by integrating the rate of change of the momentum.

Since the momentum is Rho x V, if you integreate it (using integral calculus) you get the 1/2 x Rho x (V...
Forum: Rotorheads
17th Jul 2007, 02:06
Replies: 57
Views: 19,901
Posted By BGRing

Can Some one here help me with this one.. I...

Can Some one here help me with this one..

I dont mean to fan any fire. but ..... Hang on. Fan..... what is the by product of lift ??? .... Hmmmmm.

whats that Law.. action reaction..

So...
Forum: Rotorheads
19th Jun 2007, 04:56
Replies: 24
Views: 9,133
Posted By BGRing

OK. So you all have noticed that when it is done....

OK. So you all have noticed that when it is done. that the rope has a Heavy weight on it.
There are measurement that must be met EH?
I'm guessing that the Length of rope from the weight to the Ski...
Forum: Rotorheads
17th Jun 2007, 12:02
Replies: 10
Views: 2,096
Posted By BGRing

rotorque; Thanks for the info. I never thought...

rotorque; Thanks for the info.
I never thought of that.:O
I can see how that could happen.
I also now imagine the amount would be different for different gear and their individual castor and...
Forum: Rotorheads
17th Jun 2007, 07:12
Replies: 10
Views: 2,096
Posted By BGRing

This is true. But as for your last two...

This is true.

But as for your last two Guess's I thought something different.
He is not mentioning any of the other three prop Effects
Gyro forces, Torque, or Spiral wash. and as far as I knew....
Forum: Rotorheads
17th Jun 2007, 03:18
Replies: 10
Views: 2,096
Posted By BGRing

It was just this one part of the quote that has...

It was just this one part of the quote that has me.
He goes on to explain how a heli has the Higher speed on the advancing side (True) but the thing is a Heli dose also have a lower pitch on that...
Forum: Rotorheads
16th Jun 2007, 02:31
Replies: 10
Views: 2,096
Posted By BGRing

Wow nick. You did the math on that one. Good.... ...

Wow nick. You did the math on that one. Good....

I would also agree that the advancing blade(Down swinging blade) is a little faster through the Relative air flow.. very small percent, but it is...
Forum: Rotorheads
15th Jun 2007, 23:19
Replies: 10
Views: 2,096
Posted By BGRing

fish Prop theory/Blade Theory question

This is a quote I came across from what I thought would be a Reputable source...
I am having trouble understanding how he (Lets call him Mr X) How Mr X is trying to disspell the P Factor theory....
Forum: Rotorheads
6th Apr 2007, 02:09
Replies: 41
Views: 17,218
Posted By BGRing

I think the Green Helis blade would fair better...

I think the Green Helis blade would fair better in FF Flight. not sure yet. I would like a better picture. or info on which blade that is.

the tip kinda looks like it would be less likly to stall...
Forum: Rotorheads
4th Apr 2007, 09:17
Replies: 8
Views: 1,390
Posted By BGRing

Dumb topic i chose.:( Addition to Wiki has...

Dumb topic i chose.:(

Addition to Wiki has now been removed.( back to the way it was)
Forum: Rotorheads
4th Apr 2007, 03:08
Replies: 8
Views: 1,390
Posted By BGRing

Sounds Good. Wish I could literate better....

Sounds Good. Wish I could literate better. Spelling can be fixed.
When one edits an article . there are disclaimers to the effect.

and

So I put it back to my first post. where I mention
But...
Forum: Rotorheads
4th Apr 2007, 02:29
Replies: 8
Views: 1,390
Posted By BGRing

Hi Crab. Thanks again. Listen. I have only...

Hi Crab. Thanks again.
Listen. I have only Added a small portion to the entire Pre existing Section.
Please Elaborate on My particular Part.
here it is Again.
"It should be noted that at the...
Forum: Rotorheads
3rd Apr 2007, 09:17
Replies: 8
Views: 1,390
Posted By BGRing

what you see in my Post is what I added. If it is...

what you see in my Post is what I added. If it is not in my post #1. It was not added by Me.

Do you disagree with what I added ?

PS thanks for the Spelling Check on My addition.


Thanks...
Forum: Rotorheads
3rd Apr 2007, 04:19
Replies: 8
Views: 1,390
Posted By BGRing

RBS Check Please

Ever heard of Wikipedia.
I Edited the Retreating blade stall article. to now include;

"It should be noted that at the onset of RBS. It is the tip of the Blade (Where Relative Airspeed is Higher)...
Forum: Rotorheads
19th Mar 2007, 05:32
Replies: 22
Views: 5,066
Posted By BGRing

MSP Av it was kinda Sarcasim, But i am above...

MSP Av
it was kinda Sarcasim, But i am above that :rolleyes: .

I knew about the Shutter. It is a top to bottom duel shutter operation. Guessing by Blade warp style. I was truely perplexed over...
Forum: Rotorheads
18th Mar 2007, 01:36
Replies: 22
Views: 5,066
Posted By BGRing

Nick (I am new here) Hi, I was kinda hungry for...

Nick (I am new here) Hi, I was kinda hungry for info. and so i hear u are a Knowledgeable man. I was looking at the R44 pictured above, and was wondering , Whats wrong with the tail Blade ?

Hope...
Showing results 1 to 35 of 44
 
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