Barton Control Line Speed Forum - Recent Topics https://cl-speed.bmfa.uk/community Control Line Speed Discussion Board en-GB Sat, 09 May 2026 11:56:20 +0000 wpForo 60 Barton Club Speed rules https://cl-speed.bmfa.uk/community/barton-club-discussions/barton-club-speed-rules Wed, 11 Mar 2026 21:00:33 +0000 Link below for Barton Club Speed rules.

Club speed rules

]]> Barrie Lever https://cl-speed.bmfa.uk/community/barton-club-discussions/barton-club-speed-rules Barton Contest Calendar 2026 https://cl-speed.bmfa.uk/community/contest-calander-and-results/barton-contest-calendar-2026 Tue, 20 Jan 2026 08:52:30 +0000 Here is a link to the Barton contest calendar for 2026

https://cl-speed.bmfa.uk/wp-content/uploads/2026/02/2026-BARTON-CALENDAR-v5.pdf

]]> Barrie Lever https://cl-speed.bmfa.uk/community/contest-calander-and-results/barton-contest-calendar-2026 New sub section for Barton Club discussions https://cl-speed.bmfa.uk/community/barton-club-discussions/new-sub-section-for-barton-club-discussions Mon, 19 Jan 2026 14:03:49 +0000 Use this forum as temporary gathering point for Barton Club discussions

]]> Barrie Lever https://cl-speed.bmfa.uk/community/barton-club-discussions/new-sub-section-for-barton-club-discussions Irvine 12 test stand complete https://cl-speed.bmfa.uk/community/12-class-discussion-area/irvine-12-test-stand-complete Mon, 08 Jan 2024 14:47:03 +0000 Over the past weekend I have completed a pretty sold test stand for running the 12 engines.

It is machined from 300x100x20 slab of aluminium. There is provision for both Super Silencer mounting and tuned pipes (test stand can also be used for F2A tests). 

The stand will be bolted down to a Workmate with 4 off 6mm cap heads.

A good test stand is the starting point for repeatable engine testing.

https://cl-speed.bmfa.uk/wp-content/uploads/2024/01/Test-stand-flycutting.mp4

 

 

]]> Barrie Lever https://cl-speed.bmfa.uk/community/12-class-discussion-area/irvine-12-test-stand-complete 12 class Irvine prep work https://cl-speed.bmfa.uk/community/12-class-discussion-area/12-class-irvine-prep-work Mon, 01 Jan 2024 17:33:17 +0000 I have been making parts to convert an Irvine 15R to 12 class speed specification.

The parts are being made according to the excellent article that Peter Halman wrote in Aeromodeller  issue 1035

Back issue 1035 link

The Super Silencers are part way through manufacture, I am making a few for my friends as well, the turbo cone plug head are done and all of the fixtures for modifying the cylinder porting on the milling machine are manufactured and ready for use.

https://cl-speed.bmfa.uk/wp-content/uploads/2024/01/Irvine-12-conversion-parts-small.jpg

https://cl-speed.bmfa.uk/wp-content/uploads/2024/01/Irvine-12-cylinder-modifications-small.jpg

I will be flying in the 12 Open Class not 12 PRR

]]> Barrie Lever https://cl-speed.bmfa.uk/community/12-class-discussion-area/12-class-irvine-prep-work Glass tanks. https://cl-speed.bmfa.uk/community/workshop-activity-and-new-builds/glass-tanks Tue, 20 Jul 2021 12:50:22 +0000  

64

Self explanatory.

61

 

]]> Doc James https://cl-speed.bmfa.uk/community/workshop-activity-and-new-builds/glass-tanks More on the glass weatherman. https://cl-speed.bmfa.uk/community/workshop-activity-and-new-builds/more-on-the-glass-weatherman Wed, 23 Jun 2021 12:15:08 +0000  

57 55 56 54 58 59 60]]> Doc James https://cl-speed.bmfa.uk/community/workshop-activity-and-new-builds/more-on-the-glass-weatherman Pan drilling fixture. https://cl-speed.bmfa.uk/community/workshop-activity-and-new-builds/pan-drilling-fixture Wed, 25 Nov 2020 10:16:35 +0000 Thanks to all the people who helped me here - this is my final version

48 49 50 51 52

made from a few Ironwood scraps. 

]]> Doc James https://cl-speed.bmfa.uk/community/workshop-activity-and-new-builds/pan-drilling-fixture Fast/slow jet model speed design. https://cl-speed.bmfa.uk/community/advise/fast-slow-jet-model-speed-design Sat, 26 Sep 2020 23:36:18 +0000 Hi Lads - I bunged this post on the FB site too, just to bore you

Can anybody explain to me the design philosophy behind the latest sport and fast jet models? I know that an "upright" engine is not a good idea, because it’s obviously too horizontally asymmetric for the forces experienced, so the best way is to go for the side mounted tube.
 
But what I fail to get so far is the wing arrangement. I have to admit that I'm completely ignorant here of how these models were actually developed, and no doubt there is a very good reason for everything. Problem is, right now I just can't see it.
 
Can any of you wiser Boffins elucidate for this poor ignoramus?

 

]]> Doc James https://cl-speed.bmfa.uk/community/advise/fast-slow-jet-model-speed-design Progress? https://cl-speed.bmfa.uk/community/propulsion-systems/progress Thu, 24 Sep 2020 15:59:14 +0000 I'm curious. I'm having a clearout of stuff I will never use, including loads of plans/details of various models etc.

One thing I will no longer need is an excerpt from Model Aviation Dec. 1978, details of a jet model called Super Burp, which held various records, best speed of 211.18mph That was 42 years ago. Am I right? Not a lot seems to have happened in the last 42 years? 211.18mph is of the same order that we seem to be flying today?

]]> Anonymous 10 https://cl-speed.bmfa.uk/community/propulsion-systems/progress