classic car forum header
Classic cars forum & vehicle restoration.
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
How To Register     Posting Photographs     Privacy Policy     F/book facebook.com/oldclassiccar

De Havilland Comet Report
Post new topic   Reply to topic    Classic cars forum & vehicle restoration. Forum Index -> Historic Aviation
Author Message
Peter_L



Joined: 10 Apr 2008
Posts: 2613
Location: New Brunswick. Canada.

PostPosted: Thu Mar 18, 2021 6:59 pm    Post subject: De Havilland Comet Report Reply with quote

Those of age may well remember the Comet airliner crashes and the popular press stories that quoted "Square Windows" as being the cause. Strangely enough these reports missed the fact that many aircraft had "squarish windows" in the cockpit.

https://www.youtube.com/watch?v=2rvx-r2itrE
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Churchill Johnson



Joined: 11 Jan 2011
Posts: 356
Location: Rayleigh Essex

PostPosted: Thu Mar 18, 2021 11:09 pm    Post subject: Reply with quote

I vividly remember headlines in paper, i am sure it was Daily Mirror "count to seven and the Comet has flown a mile".
Back to top
View user's profile Send private message
Penman



Joined: 23 Nov 2007
Posts: 4335
Location: Lancashire

PostPosted: Thu Mar 18, 2021 11:37 pm    Post subject: Reply with quote

Hi
If that was a Comet 1 cruise was 400 Knots 460mph so 7.83 sec per mile
Comet 2 430 kn and Comet 3 and 4 450 kn
_________________
Bristols should always come in pairs.

Any 2 from:-
Straight 6
V8 V10
Back to top
View user's profile Send private message
alastairq



Joined: 14 Oct 2016
Posts: 1541
Location: East Yorkshire

PostPosted: Fri Mar 19, 2021 10:57 am    Post subject: Reply with quote

Depends on how quickly one counts to seven?
_________________
Dellow Mk2, 1951 built, reg 1952.
Ford Mustang coupe, 1967, 6 cylinder auto.
Fiat 126 BIS
Cannon special [1996 registered. Built in 1950's]
----------------------------------------------
Ford Pop chassis, Ashley 1172 bodyshell, in pieces.
Back to top
View user's profile Send private message
alastairq



Joined: 14 Oct 2016
Posts: 1541
Location: East Yorkshire

PostPosted: Fri Mar 19, 2021 11:39 am    Post subject: Reply with quote

I flew as a passenger {!} in a Comet [Middle East Airlines] back in early 1969.
Aden-Jeddah-Beirut.
_________________
Dellow Mk2, 1951 built, reg 1952.
Ford Mustang coupe, 1967, 6 cylinder auto.
Fiat 126 BIS
Cannon special [1996 registered. Built in 1950's]
----------------------------------------------
Ford Pop chassis, Ashley 1172 bodyshell, in pieces.
Back to top
View user's profile Send private message
Miken



Joined: 24 Dec 2012
Posts: 386

PostPosted: Fri Mar 19, 2021 6:30 pm    Post subject: Reply with quote

As a small boy in the early 70's The second type of aircraft i ever flew in was a Dan Air Comet with Mum and Dad to Spain for a fortnight. We sat over the wing and i remember it being extremely noisy as of course the engines are in the wing roots.
The first aircraft i flew in was a channel hop in a "Carvair" which was a car carrying derivative of the DC4.
Back to top
View user's profile Send private message
ukdave2002



Joined: 23 Nov 2007
Posts: 3667
Location: South Cheshire

PostPosted: Fri Mar 19, 2021 7:31 pm    Post subject: Reply with quote

Square windows are so much harder to clean...all those corners!
Back to top
View user's profile Send private message Visit poster's website
Rick
Site Admin


Joined: 27 Apr 2005
Posts: 21787
Location: UK

PostPosted: Fri Mar 19, 2021 7:53 pm    Post subject: Reply with quote

An interesting film, I hadn't realised a) about the type of holes used for the rivets and b) the effects that the ground pressure testing of a fuselage had on subsequent tests.

RJ
_________________
Rick (OCC Admin)
Various 1920s-1960s - Austin, Morris, Commer, Dodge etc.
Back to top
View user's profile Send private message
Churchill Johnson



Joined: 11 Jan 2011
Posts: 356
Location: Rayleigh Essex

PostPosted: Sat Mar 20, 2021 12:08 am    Post subject: Reply with quote

A film made in 1951 staring james stewart, No Highway in the Sky, was about metal fatigue in the tail of an aircraft.
Back to top
View user's profile Send private message
Keith D



Joined: 16 Oct 2008
Posts: 1021
Location: Upper Swan, Western Australia

PostPosted: Sat Mar 20, 2021 9:01 am    Post subject: Reply with quote

No highway in the sky was based on Neville Shute's book No Highway that was almost prophetic in it's dealing with metal fatigue in airframes. Neville Shute was actually Neville Norway, co-founder of Airspeed Aircraft and so was a very highly qualified aviation author.

Keith
_________________
1926 Chrysler 60 tourer
1932 Austin Seven RN long wheelbase box sedan
1950 Austin A40 tourer
1999 BMW Z3
Its weird being the same age as old people.
You are either part of the problem or part of the solution
Back to top
View user's profile Send private message
roverdriver



Joined: 18 Oct 2008
Posts: 1191
Location: 100 miles from Melbourne, Victoria, Australia

PostPosted: Sat Mar 20, 2021 9:08 am    Post subject: Reply with quote

Very interesting video. I well remember the controversy surrounding the Comet.

Incidentally, Neville Shute wrote "No Highway In the Sky" in 1948. As well as a prolific author, he was involved with aircraft professionally. Several of his books have aeronautical themes.

Thanks Keith D. We were writing at the same time!

Yes, Peter, Slide Rule is IMHO a "must read" for anyone interested in mechanical things.
_________________
Dane- roverdriver but not a Viking.


Last edited by roverdriver on Sat Mar 20, 2021 9:17 am; edited 1 time in total
Back to top
View user's profile Send private message
peter scott



Joined: 18 Dec 2007
Posts: 6579
Location: Edinburgh

PostPosted: Sat Mar 20, 2021 9:11 am    Post subject: Reply with quote

He also wrote "Sliderule" which is effectively his autobiography and fascinating.

Peter
_________________
http://www.nostalgiatech.co.uk
1939 SS Jaguar 2 litre saloon
Back to top
View user's profile Send private message Visit poster's website
PapaJoe



Joined: 09 Nov 2020
Posts: 51
Location: Massachusetts USA

PostPosted: Sun Mar 21, 2021 1:03 am    Post subject: Reply with quote

Thanks for posting the Comet video, Peter. In the early 90s, I attended the USAF Aircraft Accident Investigation School. As a part of the "Material failure" curriculum, we studied the Comet accidents to illustrate the effects of stress concentrations on metal failure. At that time, the Comet pressure vessel breach was blamed on the square windows. I had never heard of the subsequent study blaming the rivet holes for the failure. Very interesting.
Regards,
Joe
_________________
Owned: 1917 Ford Model T Touring
1932 Chevy 5-Window Coupe
1967 Harley (Aermacchi) Sprint SS
Coveted: Ford Model Y Saloon
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Classic cars forum & vehicle restoration. Forum Index -> Historic Aviation All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
Forum T&C


php BB powered © php BB Grp.