Paul Marsh Posted December 12, 2016 Share Posted December 12, 2016 I've saw this a few days ago - quite a good Thriller film. ]]]]]]]] and the shoot down scene Edited By Paul Marsh on 12/12/2016 21:12:30 Quote Link to comment Share on other sites More sharing options...
Andy Meade Posted December 12, 2016 Share Posted December 12, 2016 Make it out of correx then Chris - nice and cheap! Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted December 12, 2016 Author Share Posted December 12, 2016 Posted by Andy Meade on 12/12/2016 21:11:43: Make it out of correx then Chris - nice and cheap! £200 is the price of a nice four stroke! Quote Link to comment Share on other sites More sharing options...
Andy Meade Posted December 12, 2016 Share Posted December 12, 2016 What do you need those stinky oily noise makers for? I thought you were a man of the hills now! Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted December 12, 2016 Author Share Posted December 12, 2016 The slopes are for the jets I want to build but without noisey EDF's or expensive turbines! Oh and lazy scale gliding, and foamie wings in gales, and laughs with mates! The engines are just for my nitro addiction, I can give it up any time! ...And Correx isn't bio degradable when I drop it in the sea, but then again neither is Hitec! Quote Link to comment Share on other sites More sharing options...
Martin Gay Posted December 13, 2016 Share Posted December 13, 2016 The plan is for the early version of the U2 which is about 24m span, not the later version at 31m span. This makes the plan about 1:8 scale. Martin. Quote Link to comment Share on other sites More sharing options...
Martin Gay Posted December 13, 2016 Share Posted December 13, 2016 A friend, and I also have this plan. Our aim is to build the U2 to 1:12 scale which is 18% smaller than the plan size. The reason for this is that I am planning a Russian M55 to the same scale (123 inch span). They should look good in the air together, hopefully at one of the later PSSA meets in 2017. Pilot figures for them both have been made, at 1:12 scale, by Real Model Pilots, so when you come to do your cockpit Chris they should be able to do one to 1:8 scale for you! Edited By Martin Gay on 13/12/2016 20:48:51 Edited By Martin Gay on 13/12/2016 21:00:18 Edited By Martin Gay on 13/12/2016 21:00:48 Edited By Martin Gay on 13/12/2016 21:02:06 Quote Link to comment Share on other sites More sharing options...
Andy Meade Posted December 13, 2016 Share Posted December 13, 2016 Nice My M55 won't be ready next season I don't think, but she's a touch bigger at 4.5 metres!Looks like U2s will be more common than JP's soon! Quote Link to comment Share on other sites More sharing options...
Martin Gay Posted December 13, 2016 Share Posted December 13, 2016 Off topic, I know but here is the original model made in 2010. Pilot figure is way too big, and this model suffered from aileron flutter due to a mistake in the section when I cut the wing cores. Quote Link to comment Share on other sites More sharing options...
Martin Gay Posted December 13, 2016 Share Posted December 13, 2016 I will start a new thread for the M55 when I start construction. Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted December 14, 2016 Author Share Posted December 14, 2016 That pilot looks spot on Martin. I'll be in touch with RMP probably next week for an A-10 pilot so I might be ordering the spaceman too! Still not 100% decided on the wing yet but as an experiment I'll set up a hot wire cutter and have a go at an F-117 PSS model first. Foam cutting and vacuum bagging will be a useful addition to my skill set/equipment but only if I can get satisfactory results. If it goes badly wrong I'll be either making a built up wing or ordering an expensive one! Another question though from a traditional balsa basher, what is the advantage of a foam/veneer fuselage like Phil Cooke's A-10 over a traditional built up and skinned one as per the drawn plan? Quote Link to comment Share on other sites More sharing options...
Andy Meade Posted December 14, 2016 Share Posted December 14, 2016 When you crash it, the insulation can straight into loft as-is.That's it. Quote Link to comment Share on other sites More sharing options...
Matt Jones Posted December 14, 2016 Share Posted December 14, 2016 Those that can, build from wood. Those that can't, pay someone to cut foam for them.Foam is for pizza bases and washing machine packaging only. Quote Link to comment Share on other sites More sharing options...
pete taylor Posted December 14, 2016 Share Posted December 14, 2016 Posted by Matt Jones on 14/12/2016 17:58:37: Those that can, build from wood. Those that can't, pay someone to cut foam for them. Foam is for pizza bases and washing machine packaging only. Quote Link to comment Share on other sites More sharing options...
Mark Kettle 1 Posted December 15, 2016 Share Posted December 15, 2016 9" depron circle for a £1.00 with a free pizza. Look at this Chris it glues together with PVA glue and the panels are 7 1/4" wide and the odds and ends put together. Edited By Mark Kettle 1 on 15/12/2016 06:57:58 Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted December 15, 2016 Share Posted December 15, 2016 Posted by Matt Jones on 14/12/2016 17:58:37: Those that can, build from wood. Those that can't, pay someone to cut foam for them. Foam is for pizza bases and washing machine packaging only. Quote Link to comment Share on other sites More sharing options...
Martian Posted December 15, 2016 Share Posted December 15, 2016 Harsh 😉 Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted December 15, 2016 Author Share Posted December 15, 2016 Probably shouldn't have mentioned the "F" word then?There is really only one area on the plan that has a compound curve and that's underneath the tail but I'm happy to build it in formers, longerons, stringers and sheet anyway. I might use carbon rod instead of HW or spruce longerons anyway. Quote Link to comment Share on other sites More sharing options...
Martyn K Posted December 15, 2016 Share Posted December 15, 2016 Hi Chris What is your target wing loading? Martyn Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted December 16, 2016 Author Share Posted December 16, 2016 TBH Martyn I haven't given that much though yet but with such a big wing I hope it's lowish. The drawn plan was designed for a 90mm fan so without that is will be lighter. At some point I will have to calculate the required materials and their associated weight to come up with a ball park figure and take it from there! I have noticed that there a a few 1/4 ply formers for u/c and motor mounts that could be substituted for a lighter alternative and the use of a 6v rx pack instead of a NiCd flight pack will require less support too. With paint going on the A-10 this weekend would be a good time to get the note pad and calculator out. Quote Link to comment Share on other sites More sharing options...
Andy Meade Posted March 15, 2017 Share Posted March 15, 2017 Is it ready yet? Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted March 16, 2017 Author Share Posted March 16, 2017 Globemaster? Managed to cut the fuselage ply formers before a Bronco sneaked onto the bench! Still, more practice cutting and skinning foam wings! I doubt it'll make the April meet! Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted September 30, 2017 Author Share Posted September 30, 2017 Darker evenings and less time to fly after work combined with the show/fly in season coming to a close means it's building season again! The formers were cut some time ago so it was time to jig it up and dry fit the stringers and see how it went. Unfortunately none of the slots in the formers would line up and the stringers were taking some odd lines down the fuselage. Resisting the urge to adjust and re cut the slots I did some investigation and after nearly half an hour of head scratching I discovered that the plan sheet with the wings and side view of the fuselage was slightly smaller than the sheet with the formers and plan view on! Setting the formers to the plan view spacings the slots lined up almost perfectly! The side view measurements have to be multiplied by 1.05 to match the plan view! Fortunately this will only effect the fin and wings from now on! So the long cigar was glued and jigged and I have made a start on the planking. 4 hours in and about another 6 hours left to go! Think I'm gonna need a bigger shed! Quote Link to comment Share on other sites More sharing options...
Harry Twist Posted September 30, 2017 Share Posted September 30, 2017 Hi Chris, Looking great so far. Your U2 is definitely going to be a big model! Planking is time consuming but worth it for the strength it will give you. Glad you sorted your plan sheet / scale difference issues. What did you decide on for wing section in the end? Regards H Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted September 30, 2017 Share Posted September 30, 2017 Looks enjoyable Chris, jigging it musta been fun ? Quote Link to comment Share on other sites More sharing options...
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