PPRuNe Forums - Search Results
PPRuNe Forums

Go Back  PPRuNe Forums > Search Forums
Reload this Page >

Search Results

Register
FAQ
Calendar
Wikiposts
Today's Posts
Search
Vendor Directory
Search: Posts Made By: Owain Glyndwr
Showing results 1 to 12 of 12
Search took 0.00 seconds.
Forum: Tech Log
27th Nov 2012, 16:31
Replies: 147
Views: 30,183
Posted By Owain Glyndwr

Occasionally one needs a little light relief from...

Occasionally one needs a little light relief from all the idiocy, both amateur and professional, that has plagued this thread.

There are non-piloting professionals writing here as guests, and...
Forum: Tech Log
27th Nov 2012, 15:25
Replies: 147
Views: 30,183
Posted By Owain Glyndwr

In the rain ...

In the rain ...
Forum: Tech Log
27th Nov 2012, 11:06
Replies: 147
Views: 30,183
Posted By Owain Glyndwr

Sure its true, which is a good safety feature...

Sure its true, which is a good safety feature because the empty #29 just behind will be able to stop in time if the first #29 does an accelerate/stop :ok:
Forum: Tech Log
27th Nov 2012, 07:45
Replies: 147
Views: 30,183
Posted By Owain Glyndwr

Lyman Any aircraft at the AoA for maximum...

Lyman

Any aircraft at the AoA for maximum lift is about to stall no matter what the weight. But who is talking about such conditions? Not I for sure! We have been discussing the point at which L/D...
Forum: Tech Log
26th Nov 2012, 17:18
Replies: 147
Views: 30,183
Posted By Owain Glyndwr

Hi HN39 I read that as an equation to...

Hi HN39



I read that as an equation to calculate minimum drag speed. Maybe the way I phrased things, but I meant an equation to tell you at what lift coefficient two aircraft of differing...
Forum: Tech Log
26th Nov 2012, 13:39
Replies: 147
Views: 30,183
Posted By Owain Glyndwr

Microburst Yes, that's right. If you look at...

Microburst

Yes, that's right. If you look at the graphs I posted (#48) you will see that at 226 kts the high weight aircraft is flying below minimum drag speed (AoA above that for max L/D) and the...
Forum: Tech Log
24th Nov 2012, 17:28
Replies: 147
Views: 30,183
Posted By Owain Glyndwr

Bye Because you specified that they were...

Bye

Because you specified that they were both flying at 400 km/hr (250 kts).

226 kts is the ONLY speed at which they can have the same L/D.
Forum: Tech Log
24th Nov 2012, 15:59
Replies: 147
Views: 30,183
Posted By Owain Glyndwr

Bye I don't know what that means exactly,...

Bye


I don't know what that means exactly, but if I knew that references in one of my posts were wrong I would feel duty bound to issue a correction. As it stands the reference you quoted DOES...
Forum: Tech Log
24th Nov 2012, 12:34
Replies: 147
Views: 30,183
Posted By Owain Glyndwr

Bye, You have complained that nobody will...

Bye,

You have complained that nobody will explain the basic aerodynamics to you but you yourself gave a reference to a document that does just that in post #27. Is it unreasonable to expect that...
Forum: Tech Log
23rd Nov 2012, 20:15
Replies: 147
Views: 30,183
Posted By Owain Glyndwr

No you didn't - I did as part of an explanation. ...

No you didn't - I did as part of an explanation.

That is what you said, but it is just as wrong. Aircraft A will NOT have 1.5 times the drag of Aircraft B if the only difference is weight.

...
Forum: Tech Log
23rd Nov 2012, 18:41
Replies: 147
Views: 30,183
Posted By Owain Glyndwr

@Bye Dave is right and you are wrong I'm...

@Bye
Dave is right and you are wrong I'm afraid.

Thrust (like any force) is a rate of change of momentum not momentum. Different units and different dimensions.

Wrong again. The 300 tonne...
Forum: Tech Log
23rd Nov 2012, 08:07
Replies: 147
Views: 30,183
Posted By Owain Glyndwr

Microburst This what you want? ...

Microburst

This what you want?
http://i1081.photobucket.com/albums/j351/OwainGlyndwr/LiftDragvsSpeed.jpg

At anything above 230 kts on this aircraft the Lift/Drag ratio will be better at the...
Showing results 1 to 12 of 12


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.