Visit Captain Sim web site  
  Welcome, Guest. Please Login or Register

 

Page Index Toggle Pages: [1] 2  Send TopicPrint
 10 VRef , VApp speed (Read 18922 times)
asanal
Senior Member
*
Offline



Posts: 522
Location: Flemington,NJ  USA
Joined: Jul 9th, 2009
Gender: Male
VRef , VApp speed
Aug 22nd, 2010 at 5:31am
Print Post  
Do you have 707 Vref and VApp calculation chart?
Thanks
Sanal
  
Back to top
 
IP Logged
 
Markoz
CS Team
*
Offline



Posts: 12373
Location: Victoria, Australia
Joined: Apr 24th, 2009
Gender: Male
Re: VRef , VApp speed
Reply #1 - Aug 22nd, 2010 at 6:20am
Print Post  
See here: http://www.captainsim.org/yabb2/YaBB.pl?num=1282399907/3#3

Thanks go to pavel for that.

Mark
  

Mark Fletcher



PC: i7 10700K @3.8/5.1GHz | 64GB DDR4 3200 | 12GB RTX 4070 Super | 32" LCD Monitor | 1TB SSD & 2x2TB SSD | Win 11 Pro - FSX/FSX-SE/P3D3/P3D4/P3D5/P3D6/MSFS2020
15.6" Gaming Laptop: i7 7700HQ | 32GB DDR4 | 6GB GTX 1060 | 256GB SSD & 1TB HDD | Win 10 Pro 64bit - FSX-SE/P3D4
Back to top
 
IP Logged
 
asanal
Senior Member
*
Offline



Posts: 522
Location: Flemington,NJ  USA
Joined: Jul 9th, 2009
Gender: Male
Re: VRef , VApp speed
Reply #2 - Aug 22nd, 2010 at 6:31pm
Print Post  
Mark,
Thanks for the link. Downloaded and quick reviewed. I cannot find the page regarding Vref and Vapp speed chart.

In 727-100 V speed landing chart  gives Gross weight and correlated Ref Speed forFlap Settings 30 and 40.

I wonder if page is missing.

Regards
Sanal
  
Back to top
 
IP Logged
 
trisager
Full Member
*
Offline



Posts: 18
Joined: Apr 10th, 2008
Re: VRef , VApp speed
Reply #3 - Aug 22nd, 2010 at 7:45pm
Print Post  
asanal wrote on Aug 22nd, 2010 at 6:31pm:
Mark,
Thanks for the link. Downloaded and quick reviewed. I cannot find the page regarding Vref and Vapp speed chart.


It is called different things. If you look in the "707limitations.pdf" you will find "TRESH" speeds, Vth, at different weights (page 10). These are your Vref speeds.

In the document called "707limitations.pdf" you find the calculation of "Programmed Speed, Vprog" on page 11. This describes how to apply wind additives to Vth.

In the same document, on pages 16-22 you find profile descriptions of various types of approaches. These profiles reference Vth and Vprog.

So all the speeds you need are indeed in the package.

Tom
  
Back to top
 
IP Logged
 
asanal
Senior Member
*
Offline



Posts: 522
Location: Flemington,NJ  USA
Joined: Jul 9th, 2009
Gender: Male
Re: VRef , VApp speed
Reply #4 - Aug 22nd, 2010 at 8:02pm
Print Post  
Thank you Smiley
  
Back to top
 
IP Logged
 
Nyxx
Full Member
*
Offline



Posts: 40
Joined: Jul 24th, 2009
Gender: Male
Re: VRef , VApp speed
Reply #5 - Aug 23rd, 2010 at 12:17pm
Print Post  
Sorry but could I ask you how this works.

On page 10 of limitations, the column I am looking at is THRESH speeds and they must be for approach? because they just list weight and 50 and 40 degrees flaps.
So if this is right and useing the top graph (300B)a weight of 240,000 LB is a touch down speed @50 flaps of 146 IAS.

Is that right?
Take off V1 Vr V2 I found on performance2 page 6  Smiley

thx
  

Dave.&&
Back to top
 
IP Logged
 
trisager
Full Member
*
Offline



Posts: 18
Joined: Apr 10th, 2008
Re: VRef , VApp speed
Reply #6 - Aug 23rd, 2010 at 12:45pm
Print Post  
Nyxx wrote on Aug 23rd, 2010 at 12:17pm:
So if this is right and useing the top graph (300B)a weight of 240,000 LB is a touch down speed @50 flaps of 146 IAS.

Is that right?


Yes, that is right. You typically add 5 knots to the speeds in the table to compensate for wind. (If you have more than 10 knots headwind when lainding, you would add half the headwind - never less than 5 knots, and never more than 20 knots).
  
Back to top
 
IP Logged
 
Nyxx
Full Member
*
Offline



Posts: 40
Joined: Jul 24th, 2009
Gender: Male
Re: VRef , VApp speed
Reply #7 - Aug 23rd, 2010 at 1:01pm
Print Post  
thank you trisager,
Now I know why she was a bit wobbly on GS auto, I was flying at around 135 IAS and trying to land around 120 Roll Eyes
  

Dave.&&
Back to top
 
IP Logged
 
Markoz
CS Team
*
Offline



Posts: 12373
Location: Victoria, Australia
Joined: Apr 24th, 2009
Gender: Male
Re: VRef , VApp speed
Reply #8 - Aug 23rd, 2010 at 1:09pm
Print Post  
Even before I got my hands on the charts, I was landing at 140-150 KIAS. I still do. Any slower and she feels too heavy and less controllable. It's probably just my driving though.

Mark
  

Mark Fletcher



PC: i7 10700K @3.8/5.1GHz | 64GB DDR4 3200 | 12GB RTX 4070 Super | 32" LCD Monitor | 1TB SSD & 2x2TB SSD | Win 11 Pro - FSX/FSX-SE/P3D3/P3D4/P3D5/P3D6/MSFS2020
15.6" Gaming Laptop: i7 7700HQ | 32GB DDR4 | 6GB GTX 1060 | 256GB SSD & 1TB HDD | Win 10 Pro 64bit - FSX-SE/P3D4
Back to top
 
IP Logged
 
trisager
Full Member
*
Offline



Posts: 18
Joined: Apr 10th, 2008
Can I ask, too?
Reply #9 - Aug 21st, 2010 at 2:11pm
Print Post  
I was just wondering if there is any tool included with this release to calculate v-speeds, power settings, etc. I didn't see any tables in the documentation.

If not, maybe something from the FS9 release of the 707 ... (I checked that forum, but couldn't find anything).

Thanks,
Tom
  
Back to top
 
IP Logged
 
Markoz
CS Team
*
Offline



Posts: 12373
Location: Victoria, Australia
Joined: Apr 24th, 2009
Gender: Male
Re: Can I ask, too?
Reply #10 - Aug 21st, 2010 at 3:08pm
Print Post  
No there isn't. I've looked up some info at the Boeing site and downloaded a pdf with a lot of info on the 707. I haven't finished looking through it yet, so I don't know if it gives that info. I'm hoping it does. I forgot that I downloaded it because I've been flying the 707 too much! Grin

Mark

EDIT: I got it HERE.
  

Mark Fletcher



PC: i7 10700K @3.8/5.1GHz | 64GB DDR4 3200 | 12GB RTX 4070 Super | 32" LCD Monitor | 1TB SSD & 2x2TB SSD | Win 11 Pro - FSX/FSX-SE/P3D3/P3D4/P3D5/P3D6/MSFS2020
15.6" Gaming Laptop: i7 7700HQ | 32GB DDR4 | 6GB GTX 1060 | 256GB SSD & 1TB HDD | Win 10 Pro 64bit - FSX-SE/P3D4
Back to top
 
IP Logged
 
trisager
Full Member
*
Offline



Posts: 18
Joined: Apr 10th, 2008
Re: Can I ask, too?
Reply #11 - Aug 21st, 2010 at 3:26pm
Print Post  
Thanks for the link, Mark. Some good info on range and takeoff/landing runway length requirements, but not power settings or speeds, unfortunately.

Thanks again,
Tom
  
Back to top
 
IP Logged
 
pavel
Full Member
*
Offline



Posts: 16
Joined: Aug 20th, 2010
Re: Can I ask, too?
Reply #12 - Aug 21st, 2010 at 3:51pm
Print Post  
Hi Tom,

Matt Zagoren made performance charts a long long time ago.
You can download them from AVSIM library.

Search for 707perf.zip

I copied some tables to word document, saved that as reference.htm, copied it to CS707 folder and added it to aircraft.cfg as reference. I am saving the paper and so our woods Smiley

pavel
  
Back to top
 
IP Logged
 
trisager
Full Member
*
Offline



Posts: 18
Joined: Apr 10th, 2008
Re: Can I ask, too?
Reply #13 - Aug 21st, 2010 at 4:00pm
Print Post  
Thanks, Pavel - exactly the kind of stuff I was looking for.

Next stop is the CS store  Smiley
  
Back to top
 
IP Logged
 
Markoz
CS Team
*
Offline



Posts: 12373
Location: Victoria, Australia
Joined: Apr 24th, 2009
Gender: Male
Re: Can I ask, too?
Reply #14 - Aug 21st, 2010 at 4:35pm
Print Post  
WOW! Great info there! Thanks for pointing that out for us pavel.

Mark
  

Mark Fletcher



PC: i7 10700K @3.8/5.1GHz | 64GB DDR4 3200 | 12GB RTX 4070 Super | 32" LCD Monitor | 1TB SSD & 2x2TB SSD | Win 11 Pro - FSX/FSX-SE/P3D3/P3D4/P3D5/P3D6/MSFS2020
15.6" Gaming Laptop: i7 7700HQ | 32GB DDR4 | 6GB GTX 1060 | 256GB SSD & 1TB HDD | Win 10 Pro 64bit - FSX-SE/P3D4
Back to top
 
IP Logged
 
Page Index Toggle Pages: [1] 2 
Send TopicPrint
 
  « Board Index ‹ Board  ^Top