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


The Aerodrome Forum


Go Back   The Aerodrome Forum > WWI Aviation > Aircraft > Replica Aircraft

Replica Aircraft Topics related to the construction of WWI replica aircraft

Reply
 
Thread Tools Display Modes
Old 2 February 2024, 02:34 AM   #1
Spoonfrog
Observer
 
Join Date: Jul 2022
Posts: 41

 
Caudron R.XI

Here is a Caudron R.XI lower Wing Rib that I am making for display. The three webs are complete although the nose and trailing edge ones will need trimming a little. The blanks for the ash cap strips are ready, but I need to rout out the grooves and work out how to steam bend them. I am planning to use a spokeshave to apply the radius to the external edges of the cap strips after assembly.
Attached Images
File Type: jpg caudron_R11_lower_wing_small.jpg (13.6 KB, 42 views)
File Type: jpg caudron_R11_lower_wing_web.jpg (20.7 KB, 55 views)
Spoonfrog is offline   Reply With Quote
Sponsored Links
Old 23 February 2024, 02:33 PM   #2
Spoonfrog
Observer
 
Join Date: Jul 2022
Posts: 41

 
I have now cut the 2mm deep grooves in the cap strips, or "baguettes" as the drawing calls them. I'm quite pleased with the grooves, I managed to get them fairly accurate despite using a handheld router. I made a jig to accept the cap strips and pulled them through once I had got the depth right on a piece of scrap. The photo shows the trailing edge web sitting in the groove. As you can see, I need to make the web edges a bit smoother so I get a good joint when the cap strips are glued on.
Attached Images
File Type: jpg IMG_20240223_220856187~2.jpg (54.7 KB, 30 views)
Spoonfrog is offline   Reply With Quote
Old 23 February 2024, 07:48 PM   #3
MattS
Two-seater Pilot
 
Join Date: Sep 2022
Location: Wellington, New Zealand
Posts: 119

 
Have just done similar work for my Camel. Looking good :-)
MattS is offline   Reply With Quote
Old 24 February 2024, 03:13 AM   #4
sator
Forum Ace
 
Join Date: Jan 2010
Location: Eastpointe, Mich.
Posts: 2,514

 
Nice work. keep us informed of your progress.
__________________
Sator
sator is offline   Reply With Quote
Old 8 March 2024, 11:31 AM   #5
Spoonfrog
Observer
 
Join Date: Jul 2022
Posts: 41

 
I made a jig for the rib. I have learnt that using the drawing on a board is a good idea. I also learnt that I need some blanks for the spar positions to stop the webs moving when the rib is clamped. I think I need a few more cams to clamp the caps on better.

Attached Images
File Type: jpg IMG_20240308_161740601~2.jpg (57.7 KB, 73 views)

Last edited by Spoonfrog; 8 March 2024 at 01:01 PM.
Spoonfrog is offline   Reply With Quote
Old 8 March 2024, 01:25 PM   #6
j ferguson
Forum Ace
 
Join Date: May 2006
Location: St Petersburg, FL
Posts: 1,553

 
The cam clamps seem a really great idea. Do you tighten them by hand or with a pliers?
__________________
Just because you didn't get the bill, doesn't mean the lunch was free.
j ferguson is online now   Reply With Quote
Old 8 March 2024, 03:00 PM   #7
Spoonfrog
Observer
 
Join Date: Jul 2022
Posts: 41

 
They are just made from an offcut of curtain pole with an eccentric hole for a screw. I saw the idea somewhere, it works very well, I can adjust them by hand.
Spoonfrog is offline   Reply With Quote
Old 8 March 2024, 03:04 PM   #8
Jeff Brooks
Forum Ace of Aces
 
Jeff Brooks's Avatar
 
Join Date: Dec 2004
Location: Rochester, NY
Posts: 3,311

 
Quote:
Originally Posted by Spoonfrog View Post
I made a jig for the rib. I have learnt that using the drawing on a board is a good idea. I also learnt that I need some blanks for the spar positions to stop the webs moving when the rib is clamped. I think I need a few more cams to clamp the caps on better.

Be careful putting the cam on both sides of the rib.
Having movable cams on both sides increases the possibility of changing the shape of the rib.

One side should be solid and keep the form of the rib while the cams on the other side presses against it.

Last edited by Jeff Brooks; 8 March 2024 at 03:16 PM.
Jeff Brooks is offline   Reply With Quote
Old 8 March 2024, 07:55 PM   #9
Spoonfrog
Observer
 
Join Date: Jul 2022
Posts: 41

 
That is a good point. I have found that it tends to "float" away from the drawing lines slightly as I tighten it. I will change it to be like your photo. Thanks for the tip!
Spoonfrog is offline   Reply With Quote
Old 9 March 2024, 03:08 AM   #10
Jeff Brooks
Forum Ace of Aces
 
Jeff Brooks's Avatar
 
Join Date: Dec 2004
Location: Rochester, NY
Posts: 3,311

 
You might want to put some sort of stopper piece to reference the spar locations too.
The three webbing pieces tend to move around laterally at the expense of the spar thickness.
Jeff Brooks is offline   Reply With Quote
Reply

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Caudron R11 steven brown Aircraft 8 6 March 2009 11:41 AM
Caudron G.4 pezzatini3 Models 6 1 December 2008 02:46 AM
Caudron R.11 baldeagle Aircraft 2 28 November 2008 01:52 PM
Caudron G.IV naimbs Aircraft 4 28 September 2006 10:18 AM
Caudron R.11 Matt_Bittner Aircraft 0 13 June 2002 11:07 AM


As an Amazon Associate we earn from qualifying purchases.

All times are GMT -7. The time now is 12:48 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Copyright 1997 - 2023 The Aerodrome