John Timmis Posted July 20, 2017 Author Share Posted July 20, 2017 Hi all It's all been a bit slow what with holidays & other stuff. Anyway the wing has been glassed & has also had one coat of high build primer which has been well rubbed down with wet & dry. Cheers John Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted July 20, 2017 Share Posted July 20, 2017 Looks terrific John Quote Link to comment Share on other sites More sharing options...
Colin Leighfield Posted July 20, 2017 Share Posted July 20, 2017 Brilliant, beyond my capability or patience! Quote Link to comment Share on other sites More sharing options...
John Timmis Posted August 6, 2017 Author Share Posted August 6, 2017 Hi all Well its moved on a little bit more. All the moving parts have been refitted to the wing & checked for correct movement. I think that the wing is just about finished now & ready for some paint. That is apart from the nav lights & the landing lights of course. It certainly is the detail that takes up the time. Next jobs are to finish the battery installation & then a weighing & a C/G check. Cheers John Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted August 6, 2017 Share Posted August 6, 2017 Excellent work John. Can't wait to see some paint. D.D. Quote Link to comment Share on other sites More sharing options...
John Timmis Posted August 10, 2017 Author Share Posted August 10, 2017 Hi all The batteries are sorted. The electrical gubbins consists of a 500 k/v motor fitted with a 15"/8" prop, a 70amp speed controller, a 6 cell lipo plus a battery for the radio side. The photos tell the story. Easy access to change the battery through the top hatch. The esc is next to the battery. The next thing was to put it all on the kitchen scales. It came out at 11lb 2oz. Brian Taylor says on the plan that his model was 10lb 2 oz ready to fly but without fuel. Not too bad then. But, (why is there always a but?) getting the cg in the right place took another 15oz of lead right in the nose. So, call it 12lb, should still be ok I think , but it feels awfully heavy to me. Will somebody please tell me that it will fly ok. I turned an open mold on the lathe & cast a lead ring to fit the inside of the cowling. I'm thinking about cooling now. I don't want to have to cut out lots of non scale holes. The cooling air can escape the battery bay & exit via the undercarriage opening in the wing. The plan is to tether the model, run the motor & see if anything gets hot. That's all for now. Cheers John. Quote Link to comment Share on other sites More sharing options...
John Timmis Posted August 12, 2017 Author Share Posted August 12, 2017 Hi all Well the result was that the speed controller got hot pretty quickly. I've moved it to below the battery tray where the rx battery was. There is still lots of room for the rx battery in the lower cowling. The hole in the bottom of the fire wall has been enlarged so there should be a nice cool blast of air over the speed controller. Since the lower part of the cowl is a closed volume the holes in the battery tray have been enlarged. Cooling air exits via the wheel bay. It looks as if it should be ok now. Cheers John. Quote Link to comment Share on other sites More sharing options...
John Timmis Posted September 13, 2017 Author Share Posted September 13, 2017 Hi all The receiver battery has been mounted in the lower cowling, underneath the speed controller. It is velcroed onto a ply divider which will also direct cooling air over the speed controller. The fibreglass cowl was cut on the scale panel lines to give access & will be held in place by a tongue & magnets. The other bit of progress has been the cockpit canopy framing. I wondered how to do this for a while. People always seem to look at the canopy area first so it needs to look tidy. What I really wanted was a frame from litho but this was something I hadn't tried before. Advice was found in an old mag article written by David Vaughan that confirmed that this was a good way to go. The canopy has to be masked off & then the litho framing can be glued down with evostick thinned down with cellulose thinners. The only tricky part of the frame was the front windscreen frame. The annealed litho was clamped between ply formers & gradually persuaded around the curved edge. Several more annealings were needed before the frame could be cut free. Hope it doesn't end up a gooey mess. Cheer John Quote Link to comment Share on other sites More sharing options...
John Timmis Posted November 5, 2017 Author Share Posted November 5, 2017 Hi all Here are some photos of the recent progress. Still some way to go but getting there. Cheers John Quote Link to comment Share on other sites More sharing options...
Shane Sunday Posted December 2, 2017 Share Posted December 2, 2017 Man thats looking sweet. Looking forward to the maiden flight Quote Link to comment Share on other sites More sharing options...
John Timmis Posted January 25, 2018 Author Share Posted January 25, 2018 .Hi all A very cold garage/ workshop & various other commitments have meant that time for building has been very limited for the past couple of months. Anyway I think that the build is now just about as finished as it ever will be. (Do you ever really finish a scale model?) A cast lead ring weighing 15 oz has been glassed into the very front of the cowling. The CG is now spot on & the finished weight ready to go is11lb 10oz. So, just need to set up the control throws & checkthat all the screws are tight & it will be good to go. Just need to get my thumbs in practice & some nice weather now. Here are a few photos. Thanks to all who have followed the build & have contributed. Hopefully there will be some flying photos later. Need to decide on the next project now, I have a few ideas for a quick build before the "Fury" starts. Cheers John. Quote Link to comment Share on other sites More sharing options...
Rob Ashley Posted January 25, 2018 Share Posted January 25, 2018 Nicely done John! Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted January 25, 2018 Share Posted January 25, 2018 Looks great John Quote Link to comment Share on other sites More sharing options...
Martyn K Posted January 26, 2018 Share Posted January 26, 2018 That looks lovely John Very nice indeed Quote Link to comment Share on other sites More sharing options...
Christophe SLEMBROUCK Posted March 9, 2018 Share Posted March 9, 2018 Hi all , yes very lovely plane...!! could yuo tell me where is your C.G please ?? the same as BT drawing N ?? Thank's Christohpe Quote Link to comment Share on other sites More sharing options...
robert mcleod Posted March 10, 2018 Share Posted March 10, 2018 Hi everyone. Found this thread a bit late. I have built same using a petrol ASP120 4c. Converted myself. Also using e flite 120 retracts. Walbro carb means my fuel tank is positioned much further back than plan, in fact under the sevos. The original fuel tank housing now carries a 3s 2200ma li pi to provide all the power for radio, retracts and ignition via 6V u bec. My AUW ready to fly less fuel is 10lbs 3oz. I have no ballast with CofG as per plan. If you have test flown yet? How did you get on? I am ready to go, pending on runway drying out! If anyones interested i have lots of build pic,s. Also mounted my exhaust behind engine on firewall, so nothing hanging out. Quote Link to comment Share on other sites More sharing options...
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