Tony Bennett Posted August 30, 2013 Share Posted August 30, 2013 well done sir. cant wait to see some flying pictures Quote Link to comment Share on other sites More sharing options...
Martian Posted September 9, 2013 Author Share Posted September 9, 2013 now that the Lancair is finished time to patch up the yellow peril below how it ended up Ouch my nose cut out for motors (both sides) Cardboard tube from cooking foil and brushed motor plastic tube let in for wire route tube bonded to wing with epoxy motor wrapped in with a little pvc tabe then ca in to tube wires can be seen passing through to underside replacement nose in balsa still some work to do and the old bruised nose post more in day or two Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted September 9, 2013 Share Posted September 9, 2013 yay keep going sir. cant wait to see it flying. Quote Link to comment Share on other sites More sharing options...
Martian Posted September 13, 2013 Author Share Posted September 13, 2013 some more progress nose cone has been replaced and blended in and have decided to cut to elevators out of the separated tail unit its easier that way when complete will rejoin with splints, new nose and general mess separated tail section showing bamboo skewers these will be driven in when 2 halves are joined with epoxy I choose the bamboo for a few reasons 1 they were free 2 they are springy and 3 very strong. anyway here you can see the servo cut in to the poly there are now two balsa blocks hardened with ca to screw the servo to also the 2 elevator halves are visible as yet not sanded.the elevator cut outs are lined with 1.5 mm balsa as are the sides of the elevators the front face 4mmx6mm I think clearer view of elevator here you can see the elevator joiner it is made from softer steel rod than piano wire (its actually the wire support from a paper lamp shade) this is running through a piece of retrieved rc aerial tube as are the end pivot points , thanks to Simon Chaddock for the inspiration elevator cut out sanded and painted up.in the middle you can see the white recess where the elevator assembly will slip in complete with the tube then this will be filled with balsa to keep it in place Hinge pin at tip ca in place the securing pin will go through tail tip thru tube the glued in place all bonded ready for finishing then fitting in to place you can also see servo horn which is made up of to layers of thin ply let into the elevator you can also see the brass ball joint that I am using it is lightweight small and secure (and free from my heli spares box ) more soon Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted September 13, 2013 Share Posted September 13, 2013 impressive sir. cant wait to see it flying. Quote Link to comment Share on other sites More sharing options...
Tangental Posted September 13, 2013 Share Posted September 13, 2013 Had the real thing bashing the circuit at RAF Cranwell for about 2 hrs recently. Wonder if we'll see it in the RAF multi engine training role soon as well as the spying thing it already does? Edited By Tangental on 13/09/2013 19:20:35 Quote Link to comment Share on other sites More sharing options...
Martian Posted September 13, 2013 Author Share Posted September 13, 2013 thank you Tony who knows Tangental the RAF allready like them. Quote Link to comment Share on other sites More sharing options...
Martian Posted September 17, 2013 Author Share Posted September 17, 2013 bit more progress and time to actually pay for some bits ;( fuselage repair successful bonded with epoxy and reinforced with bamboo skewers ,they flex a little which is good they also grip against the poly very well ,after a little filler will touch up the paint aileron cut out ,made a card template so both ae's will be same.the cut out faces in the wing will be faced with 1.5mm balsa but the hinge points will be 1/32 ply and the front face of the ae's will be faced with 6mm balsa and rounded canopy cut out this was a bit of a pig to line up but i can make up the discrepancies with balsa (good old balsa) this has weakened the fuz at this point but I still have some bamboo skewers,I had to cutout the canopy area to allow room for the rc gear and batt plus esc the batt will sit further forward towards nose in an area hollowed out to keep CG right,you can just see the outline of a hatch this is to add additional lead if needed. canopy faced both sides now will make slight balsa infils to tighten the fit it will be held in place with neo magnets, best get sanding ,more later Quote Link to comment Share on other sites More sharing options...
Martian Posted September 29, 2013 Author Share Posted September 29, 2013 Well this is the final stretch, fuselage slotted to take elev servo wire and visible extn slot for elev servo wire stops jujst short of canopy and a hole is drilled at an angle to exit in lower cockpit area,strips of balsa were pressed in to slot then lightweight filler covering once repainted it will not be seen only the extn connector will be that is covered in masking tape and painted over. servo wires visble elevater and left and right servo wires,same method was used to rout ae wires and power wires. gear connected up for control surfaces testing the sharp eyed will spot an orange stabilizer fitted for inital tests on a slope near me if ok will gradually turn down gain. this image shows ae being tested it's about 20mm throw she overhangs 6ft table by a fair amount note the puny test motors again subject to a good test I will fit a pair of brushed 480 motors running 8x6 props with a 3s 1800mah .there is quite a bit of flex in the wings they are 80inch so no fancy flying. this hole is for a softwood insert covered with a ply plate ,the hole exposes the connecting tube it is not very big and came from a helicopter boom,as originally I did not intend to go quite so far with the build.the plate is to accomodate a screw to pass through joining tube and rod to keep it in place 2 to each wing half. and lastly in keeping with diy bits ply control horns a sandwich of 1/32 plyx2 these are let into the balsa leading edges. A possible mod is to fit balsa leading edges on wing we will se thanks to Tim Hooper for encouragement and advice and encouragement from Tony Bennet and all the clever tricks you guys demonstrate in this forum now for the maiden when weather permits wish me luck Quote Link to comment Share on other sites More sharing options...
Tim Hooper Posted September 29, 2013 Share Posted September 29, 2013 Waiting...... tim Quote Link to comment Share on other sites More sharing options...
Martian Posted October 19, 2013 Author Share Posted October 19, 2013 still not flown allthough plans are being drawn for the balsa model Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted October 19, 2013 Share Posted October 19, 2013 good oh about the balsa model. shame you not flown it though. Quote Link to comment Share on other sites More sharing options...
Martian Posted October 24, 2013 Author Share Posted October 24, 2013 well the weather was fine low wind and sun so I thought why not, as I predicted the motors are to puny she tip stalled and rolled into the deck breaking a wing of near a motor where there is no support and back broke by the tail all fixable and some valuable lessons. It's clear when I get going with the Balsa model where I need to concentrate more support/strength on these identified weak areas . The all up weight with rc gear 2 motors and 3s 1800 mah lipo came out at 3 pounds and at 80 span I don't think thats to bad . Question is do I continue or do I retrieve all gear and concentrate on the balsa /ply model I can always give my little grandson the rest after mending. I have a feeling that 3lbs is the limit with a poly plane of this size ,the poly has no shear strength and requires to much reinforcing and thereby more weight I could end up going round in circles, what do you think ? give up or continue Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted October 24, 2013 Share Posted October 24, 2013 move onto the balsa and ply version. ot go all depron construction. Quote Link to comment Share on other sites More sharing options...
Martian Posted October 24, 2013 Author Share Posted October 24, 2013 I think you are right Tony ,but I would like to try depron if only for the new building skills, I can strip the yellow peril for the Foam Fing Quote Link to comment Share on other sites More sharing options...
Martian Posted May 26, 2014 Author Share Posted May 26, 2014 Well I never did let this go I got hold of a couple of brushed motors (480's ) and knocked up some nacelles not strictly scale like but a nod in the right direction the cable to the motors was totally unsuitable and melted no harm done got some 14swg cable and rewired I have also got a 2s lipo at 1800mah and fitted 8.4 prop ccw and cw and ran it up to full power loads of thrust and draws if I remember close on 400watts. each motor has it's own esc with the batt feed split between them a bit more to do then it will be time to test fly again Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted May 26, 2014 Share Posted May 26, 2014 lets see this one finished and flying sir. been waiting for ages. Quote Link to comment Share on other sites More sharing options...
Martian Posted May 27, 2014 Author Share Posted May 27, 2014 yes it is dragging on but I was distracted building the rf4 and barnstormer but am trying to get this in the air ASAP Quote Link to comment Share on other sites More sharing options...
Martian Posted May 27, 2014 Author Share Posted May 27, 2014 below pics of busy cockpit area Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted May 27, 2014 Share Posted May 27, 2014 looks very busy in there young man. Quote Link to comment Share on other sites More sharing options...
Martian Posted May 27, 2014 Author Share Posted May 27, 2014 yes I know ,2 esc's flight stab rx and 2s batt should make a good fire Quote Link to comment Share on other sites More sharing options...
Martian Posted July 11, 2014 Author Share Posted July 11, 2014 turned my attention back to this it's now all painted white except the elevators and ailerons they are blue ,will post a piccie soon before it gets mashed Quote Link to comment Share on other sites More sharing options...
Martian Posted July 12, 2014 Author Share Posted July 12, 2014 Repainted ready to fly ,orange gyro fitted AUW 36ozs ,wings appear to droop but not bolted and the wingtips lift when in air hope they don't break . going to be a bit of a handful for 1 person. Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted July 12, 2014 Share Posted July 12, 2014 love it. Quote Link to comment Share on other sites More sharing options...
Martian Posted July 12, 2014 Author Share Posted July 12, 2014 thanks Tony Quote Link to comment Share on other sites More sharing options...
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