Go Back  PPRuNe Forums > Misc. Forums > Aviation History and Nostalgia
Reload this Page >

Info on the Bristol Britannia - Take-Off Run?

Aviation History and Nostalgia Whether working in aviation, retired, wannabee or just plain fascinated this forum welcomes all with a love of flight.

Info on the Bristol Britannia - Take-Off Run?

Old 11th Apr 2015, 13:35
  #1 (permalink)  
Thread Starter
 
Join Date: Apr 2015
Location: Scotland, UK
Posts: 2
Question Info on the Bristol Britannia - Take-Off Run?

Hi there,
I'm new here so please let me know if I'm not conducting this thread in the right way, or whatever.

I'm an aeronautical engineering student and for one of my group projects this year I'm researching some of the turboprop airliners from the 50s and 60s. Long story short we're developing a concept design for a commercial turboprop that's geometrically & performance-wise similar to the DC-7 and the Il-18 Coot, to meet performance and design specifications requested by an imaginary client (i.e. our lecturer).

The problem is, one of these performance requirements is the take-off run at MTOW in standard met conditions at sea level. For all our other case studies we've found this value, but for the Bristol Britannia we can't find this characteristic anywhere online.

Would anyone here happen to know (even roughly, to the nearest 100m will do) the take-off run at MTOW for the Britannia 310 or 320 series?

Thanks a lot for the help!
HimalayanFluke is offline  
Old 11th Apr 2015, 21:39
  #2 (permalink)  
 
Join Date: Jan 2007
Location: North of the South Pole
Posts: 1,016
This info should be easily available because the CAA performance (group A) exam was based on the Britannia, until about the late 70's.
ZeBedie is offline  
Old 11th Apr 2015, 22:16
  #3 (permalink)  
 
Join Date: May 2009
Location: New South Wales
Posts: 8,750
This is for the 310...

Noyade is offline  
Old 12th Apr 2015, 07:24
  #4 (permalink)  
 
Join Date: Sep 2004
Location: Canada
Posts: 1,063
The Bristol Britannia XM496 Preservation Society is dedicated to the preservation of the XM496 Britannia Aircraft in Royal Airforce Livery

Perhaps these folks can help.
albatross is offline  
Old 12th Apr 2015, 11:29
  #5 (permalink)  
 
Join Date: Mar 2002
Location: near an airplane
Posts: 1,751
This any help?

http://www.vc10.net/Files/TN_TOperformancegraph.jpg

Last edited by Jhieminga; 12th Apr 2015 at 11:30. Reason: Image was too large to show inline
Jhieminga is offline  
Old 12th Apr 2015, 14:10
  #6 (permalink)  
Thread Starter
 
Join Date: Apr 2015
Location: Scotland, UK
Posts: 2
Ah, thanks a bunch everyone! Very good info. Checking out

Noyade, if possible could you tell me where you sourced that image/photocopy from?
As you probably understand, I have to be really meticulous with my references for this project.

Again, thank you very much!
HimalayanFluke is offline  
Old 6th May 2015, 11:12
  #7 (permalink)  
 
Join Date: Feb 2001
Location: Under the clouds now
Age: 83
Posts: 2,213
HF - I have been a bit tied up, but have now found time to copy this graph from my Britannia 312 Ops Manual. Hope it helps.

brakedwell is offline  
Old 6th May 2015, 21:09
  #8 (permalink)  
 
Join Date: Jan 2008
Location: UK
Age: 77
Posts: 41
Britannia performance - take off run required

The difficulty here is that the Take Off Distance Available (TODA - paved run plus clearway over which to climb to a screen height) and the Take Off Run Available (TORA - paved surface alone) are different beasts, as is the Emergency Distance Available (EMDA - paved surface plus stopway on which to bring the aircraft to a halt). I do not remember ever having to calculate a Take Off Run Required as such in 30-odd years of wrestling with Group A performance on various types. The aim was to input the TORA, TODA and EMDA plus the density altitude, temperature, wind, slope etc in order to determine the maximum weight allowable to get the aircraft to the screen height (eg 35 or 50 ft above the first obstacle at the end of the TODA), having suffered an engine failure at V1 (decision speed). And the answer was always a weight and a speed, never a distance or the amount of tarmac from brakes-off to airborne. TORA and EMDA came into it certainly but you had to input them to the graphs, not calculate them from the graphs. Excuse my rusty memory; it's about 50 years since I studied Britannia 252/253 variant performance but I still have occasional access to a Vol 1 ODM courtesy of the XM496 Preservation Society should there be questions.
ARCHIE1 is offline  
Old 11th May 2015, 23:49
  #9 (permalink)  
 
Join Date: May 2009
Location: New South Wales
Posts: 8,750
could you tell me where you sourced that image/photocopy from?
The World's Airliners. Peter W. Brooks. Putnam. 1962.
Noyade is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.