Andy J Posted August 9, 2023 Share Posted August 9, 2023 Thanks JD, did see the construction method on the other link I posted yesterday so will now see if I can break the glue joint at the base of the fin. Have you taken up some of the mods I have suggested as the 6BA cap screws makes assembly so much easier? Quote Link to comment Share on other sites More sharing options...
J D 8 Posted August 9, 2023 Author Share Posted August 9, 2023 Hi Andy, With the way my Bristol has been built there is no need to modify fixings [an idea I will use on other aircraft] The wings come off as "cell's" like Paul's Tigermoth in previous post. So only 4 screws fit the wings on to the center sections which remain on the fuselage via carbon tube dowels. Downside of this is likely extra weight. Mine is 14-15 lbs, do you know what yours weighs? Just about ready for a flight test when weather allows. 3 Quote Link to comment Share on other sites More sharing options...
Andy J Posted August 10, 2023 Share Posted August 10, 2023 Well the fuselage weighs 5 1/2lbs but could not get an accurate value for the wings as they were too light for the scales. Would guess they are in the region of 1.5 to 2lbs. Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted August 10, 2023 Share Posted August 10, 2023 Maybe if you left the fuselage on the scales, then added the wings ?. Quote Link to comment Share on other sites More sharing options...
J D 8 Posted August 10, 2023 Author Share Posted August 10, 2023 If yours is just about 10lb all up recon mine may be a right porker. Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted August 10, 2023 Share Posted August 10, 2023 I thought they band lead in paint decades ago?😄 1 1 Quote Link to comment Share on other sites More sharing options...
Andy J Posted August 11, 2023 Share Posted August 11, 2023 Made another measurement which I think was 8lb 4oz so yours JD is a little on the heavy side. Required very little lead up front along side the Laser 75 so perhaps the original builder did a good job of keeping the back end free of any significant weight. Quote Link to comment Share on other sites More sharing options...
J D 8 Posted August 11, 2023 Author Share Posted August 11, 2023 More than a little😬 I recon, just as well there is a 91 up front. Quote Link to comment Share on other sites More sharing options...
J D 8 Posted August 17, 2023 Author Share Posted August 17, 2023 (edited) A nice day here yesterday with little wind so took the Bristol for i's maiden [ for me anyway] I had thought it had flown before but now not so sure. Knew it to be a bit of a porker but have to say more of a Porky Pig [ as in pig to fly ] Our strip has a slight slope and what wind there was required us to take off up it, bit of a wiggle as I started off but soon had it running straight. I was just thinking of pulling the plug on the protracted run when wheels had air visible beneath and I kept going, just cleared the electric fence at about ten foot up and it seemed that was about as high as it wanted to go flying over the rough beyond. One of the chaps said "Looks like John is going to visit the army" who had a encampment about 1/4 of a mile away.[ We fly on a WW2 airfield still used by military] I was about to dump it and eased off the tad of up I was holding when it gained a bit of speed and started a very slow climb. With a bit of space beneath a very gentle turn brought it back over the field. All this time I had been holding in a load of left aileron. Did four circuits at hundred foot or so trying to trim but not enough movement. Throttled back some[ SC91 had been going flat out until now and had not missed a beat, just as well] and came in on a tidy enough approach until was just a foot off the ground but as I came back on the power it dropped dug the nose in and flipped over [ no damage ] Will come back with my thoughts on the issues but Action Man pilot said no way he was taking it up again.😁 Edited August 17, 2023 by J D 8 correction 2 3 Quote Link to comment Share on other sites More sharing options...
Andy J Posted August 17, 2023 Share Posted August 17, 2023 Well done JD, at least its one piece!. Do you now have a weight loss plan for the model or will it be a bigger engine? Think others have said the model needs a power on approach as its very draggy with all that rigging and a large wing. May have to wait to the winter to fly my airframe as our strip is North/South and yet to see the winds come round in that direction for the last few months. Quote Link to comment Share on other sites More sharing options...
J D 8 Posted August 17, 2023 Author Share Posted August 17, 2023 For a start I recon CG is to far forward on mine and the 130mm from leading edge as per instruction sheet is more on the money. The wanting to bank right is caused by the twist/warp in the port upper wing as can be seen in pic. On a full size or exact scale Fb2 you would sort this with rigging adjustment. However Flair model wings are of a model type that are stiff/strong/thick enough not to need rigging wires and getting a twist out is not easy. As for the weight I can prize some of the lead ingots from the bottom of the cowl and perhaps a better prop may give more thrust. Wishful thinking perhaps and pulling all the lead out for a big lump may be better. [a Laser 80 is what Jon Laser engines says for these] so yours should be good. Wind levels have been bad this year, if can sort it things may be better later in the year but Engine problems with my Major Mannock have now taken priority. John. 1 Quote Link to comment Share on other sites More sharing options...
Robertg Posted August 17, 2023 Share Posted August 17, 2023 hi guys ,I’m enjoying this thread ,at the moment I’m building the flair Bristol fighter ,fuselage is more or less done ,and about to start the wings ,I would like to make both wings removable leaving the centre section on ,am still studying the best approach for this .. Quote Link to comment Share on other sites More sharing options...
J D 8 Posted August 18, 2023 Author Share Posted August 18, 2023 Helo Robertg, You can see in the pics of mine on previous page holes through the centre section ribs. These are brass tubes through which carbon tubes fit and then similar tubes in the wing root is where they fit John. Quote Link to comment Share on other sites More sharing options...
Robertg Posted August 18, 2023 Share Posted August 18, 2023 I have been hunting for a Lewis machine gun ,anyone know what scale the model is ……1/8? Or 1/6.. Quote Link to comment Share on other sites More sharing options...
Robertg Posted August 18, 2023 Share Posted August 18, 2023 Quote Link to comment Share on other sites More sharing options...
Don Fry Posted August 18, 2023 Share Posted August 18, 2023 (edited) 8 minutes ago, Robertg said: I have been hunting for a Lewis machine gun ,anyone know what scale the model is ……1/8? Or 1/6.. 1/6 th Rob. I would kill for that workshop. Sarik do a Lewis, 1/6, £16. Edited August 18, 2023 by Don Fry Quote Link to comment Share on other sites More sharing options...
Robertg Posted August 18, 2023 Share Posted August 18, 2023 Thanks Don ,I’ll have a look 👍 Quote Link to comment Share on other sites More sharing options...
J D 8 Posted August 18, 2023 Author Share Posted August 18, 2023 Construction is looking good, keep that tail as light as you can. I recon a heavy tail is much of the issue with mine, its a long way back and there is a heap of lead in the nose. Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted August 18, 2023 Share Posted August 18, 2023 You could start by leaving out those diagonals in the tailplane and rudder, not really necessary at all. Quote Link to comment Share on other sites More sharing options...
Robertg Posted August 26, 2023 Share Posted August 26, 2023 That’s a good point ,generally I build the complete model firstly with servos ,engine etc and before everything is finalised I can lose a bit here and there or shift heavier stuff in a direction that helps CG ….the diagonals were as per the plan ,but will be easy to Dremel out if need be ….. wings are a lot of work 😳 Quote Link to comment Share on other sites More sharing options...
Andy J Posted August 31, 2023 Share Posted August 31, 2023 On 18/08/2023 at 21:48, jeff2wings said: You could start by leaving out those diagonals in the tailplane and rudder, not really necessary at all. Would be a shame to remove the diagonals as they look very nice. Just had a look at my tailplane and its as per the original plan and certainly I don't have a rear weight issue using only a Laser 75 up front. 1 Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted August 31, 2023 Share Posted August 31, 2023 On 18/08/2023 at 10:21, Robertg said: I have been hunting for a Lewis machine gun ,anyone know what scale the model is ……1/8? Or 1/6.. Quote Link to comment Share on other sites More sharing options...
Robertg Posted September 3, 2023 Share Posted September 3, 2023 I agree Andy ….and I will have an os 90 four stroke up front 😜…..thanks Denis I will get on to dbsport and scale …...another question on availability for wheels ….the ones recommended on the flair plan say 127 MM (w30133) palmer cord ….I can’t find those anywhere ? Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted September 3, 2023 Share Posted September 3, 2023 (edited) 3 hours ago, Robertg said: flair plan say 127 MM (w30133) palmer cord Sticking with Flair, check out Williams Bros Wheels 127mm in two styles Edited September 3, 2023 by Denis Watkins Quote Link to comment Share on other sites More sharing options...
Don Fry Posted September 3, 2023 Share Posted September 3, 2023 The Williams 127mm vintage wheels will do you nicely. Quote Link to comment Share on other sites More sharing options...
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