The Aerodrome Home Page
Aces of WWI
Aircraft of WWI
Books and Film
The Aerodrome Forum
Sign the Guestbook
Help
Links to Other Sites
Medals and Decorations
The Aerodrome News
Search The Aerodrome
Today in History


Learn how to remove ads

The Aerodrome Forum

Learn how to remove ads

Go Back   The Aerodrome Forum > WWI Aviation > Aircraft


Aircraft Topics related to WWI aircraft, aircraft engines and armament

Closed Thread
 
Thread Tools Display Modes
Old 25 May 2010, 12:52 PM   #1 (permalink)
Forum Ace
 
Lodzermensch's Avatar
 
Join Date: Dec 2008
Location: Poland
Posts: 1,495
 
Question Sopwith Tabloid enquiry.

Hello,

I have got a question about the aircraft No 1214.

What type of engine was it powered by?

I know that Tabloids were equipped with 80 hp Gnome of course, but this one – along with No 1215 – was built as an racer for Gordon Bennett contest. Moreover – pictures of the machine show exhaust stacks protruding from sides of the fuselage, not present in other Tabloids.

I would also be grateful for any photo or drawing of this engine.

Thanks in advance.

Marek
Lodzermensch is offline  
Sponsored Links
Old 25 May 2010, 03:37 PM   #2 (permalink)
Observer
 
Join Date: May 2007
Location: nw london uk
Posts: 78
 
gnome details

- not exhausts , extended inlet pipes for the carburettor . GWai | Le Rhône 80hp rotary - left -Blimp.
blimp is offline  
Old 25 May 2010, 03:40 PM   #3 (permalink)
Forum Ace
 
Patrick's Avatar
Contributor
 
Join Date: Jul 2004
Location: Laguna Niguel, California
Posts: 1,021
 
Hi Marek, in his book Sopwith Aircraft Mick Davis states that 1213, 1214 and 1215 were all equipped with the 80 hp Gnome, but all had various structural modifications meant to increase performance. In particular, both 1214 and 1215 had redesigned cowls, apparently in an effort to obtain better cooling. Perhaps what you're seeing is not an exhaust stack but rather a ventilation port.

Edit: I stand corrected, Blimp IDs the stack as a carb inlet.
__________________
— Patrick Demski —
Patrick is offline  
Old 25 May 2010, 08:17 PM   #4 (permalink)
Forum Ace
 
Join Date: Aug 2001
Posts: 2,584
 
Hi:

Like many things, now confusing.

1215 was what is generally called the Gordon-Bennett racer, powered by a 100hp Gnome Monosoupape (Bruce). Some sources do list the 80hp Gnome.

1214 may have been a less radical back-up machine to 1215 and may also have been fitted with the 100hp Gnome, (engines do get changed). 1214 was eventually transferred to the RNAS at Dover then Dunkerque, where it was fitted with a fixed Lewis on the starboard fuselage side, and deflector plates.

I don’t know what photo you have, but could you be looking at the Lewis?

Dave
Dave_Kent is offline  
Old 26 May 2010, 08:28 AM   #5 (permalink)
Forum Ace
 
Lodzermensch's Avatar
 
Join Date: Dec 2008
Location: Poland
Posts: 1,495
 
Hello,

Gentlemen, thank you very much for your inputs. I admit, it was not good idea to call the tubes “exhaust pipes”. I am still an ignorant if it comes to engines.

My question was referred to well known photo.



A tube protruding from starboard is clearly visible right under the machine gun. Unfortunately, I am not able to improve picture so as to identify the type of engine but it looks like 9 cylinder rotary "of some kind" rather than 7 cylinder 80 hp Gnome.

As for inlet pipes – I thought that there were no carburettors in rotary engines, in 1914.

Regards

Marek
Lodzermensch is offline  
Old 26 May 2010, 09:07 AM   #6 (permalink)
Forum Ace
 
Join Date: Oct 2008
Location: UK
Posts: 2,516
 
Hi Marek, ...Looks like probably the 100 HP 9 cylinder Gnome Mono' ....Tube under the Lewis looks like the Air inlet pipe going to the back of the motor , where a right angle joint connects it to the air inlet pipe part of the motor rearward extension /mounting . ,..(Correct in that it has no carb' as such , but it does require an air supply .) .
The Gnome in this application would have had the " Long " extended motor front plate / nose piece prop' extension for the prop hub

JM.
John McKenzie is offline  
Old 26 May 2010, 09:52 AM   #7 (permalink)
Forum Ace
 
Lodzermensch's Avatar
 
Join Date: Dec 2008
Location: Poland
Posts: 1,495
 
Thanks John.

That's what I was afraid of. I was going to build a model of No 1214. It would be an easy build. Now I have to figure out how to build an engine from scratch.

Regards

Marek
Lodzermensch is offline  
Old 26 May 2010, 10:12 AM   #8 (permalink)
Forum Ace
 
YavorD's Avatar
 
Join Date: Sep 2006
Location: Sofia, Bulgaria
Posts: 2,621
 
It is induction manifold, present on both sides. The engine is Le Rhône 9C, IMHO.
Regards,
Yavor
YavorD is offline  
Old 27 May 2010, 12:15 AM   #9 (permalink)
Forum Ace
 
Lodzermensch's Avatar
 
Join Date: Dec 2008
Location: Poland
Posts: 1,495
 
Quote:
Originally Posted by YavorD View Post
It is induction manifold, present on both sides. The engine is Le Rhône 9C, IMHO.
Regards,
Yavor
Fine!

It seems we have draw. Gnome Monosoupape vs Le Rhone – 2:2.

I better go fishing. It is less stressful.

Cheers

Marek
Lodzermensch is offline  
Old 27 May 2010, 12:52 AM   #10 (permalink)
Forum Ace
 
Join Date: Oct 2008
Location: UK
Posts: 2,516
 
80 HP LeRhone

Hello , ...YavorD , I think that you are correct .
(Looking at the bottom cylinder ) .......
The push rod does seem to be slanting over to the left ,( Gnome ones are more central ), and perhaps we CAN see the copper induction pipes of the LeRhone , going to the top LH side of the cylinder , coming from the front of the crank case ...(cant actually see the crank case ).

JM
John McKenzie is offline  
Closed Thread

Bookmarks


Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Avro 504/Sopwith Tabloid drawings Brooklands Replica Aircraft 12 16 March 2010 04:34 AM
Sopwith Tabloid: RNAS 169 - OCT 1914 RobW Camouflage and Markings 2 18 October 2009 05:56 PM
Sopwith Tabloid drawings PackardPursuit Replica Aircraft 1 17 August 2008 08:13 AM
Sopwith Tabloid plans ZuluYankeePapa Replica Aircraft 4 25 June 2007 11:06 PM
Sopwith Tabloid & Schneider Controls??? rfindley Aircraft 0 3 November 2004 02:46 PM


All times are GMT -8. The time now is 06:24 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.0 PL2
Copyright ©1997 - 2013 The Aerodrome