Maarten Werner Posted January 27, 2017 Share Posted January 27, 2017 Hello Chaps, Not an elaborate build log but I thought I'd share some pictures of my newly finished Dornier Pfeil. Build from the Paul Janssens plan. Wingspan 45", Weight 43 oz. Lost foam glassfiber fuse, veneer covered foam wings. Not a lot of scale details, this leaves me with more time for the next build I hope to maiden her soon and I hope you like it. Best regards, Maarten Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted January 27, 2017 Share Posted January 27, 2017 I like it a lot Quote Link to comment Share on other sites More sharing options...
Colin Leighfield Posted January 27, 2017 Share Posted January 27, 2017 Is that PSS Maarten? It looks wonderful. Quote Link to comment Share on other sites More sharing options...
Maarten Werner Posted January 27, 2017 Author Share Posted January 27, 2017 Thanks guys. Yes it's a PSS model. Took me about 5 weeks Now it's time to decide what to build next..... Quote Link to comment Share on other sites More sharing options...
Harry Twist Posted January 27, 2017 Share Posted January 27, 2017 Hi Maarten, lovely model and an unusual subject. How have you finished the surface? Paint/film? Look after that underslung fin on landing! Thanks for sharing the images. Edited By Harry Twist on 27/01/2017 23:07:00 Edited By Harry Twist on 27/01/2017 23:07:31 Quote Link to comment Share on other sites More sharing options...
Maarten Werner Posted January 28, 2017 Author Share Posted January 28, 2017 Hi Harry, the wing is covered with Solartex. The finish on the fuse is matching acryl carpaint with a final clearcoat. The dark earth camouflage on the wing is also carpaint. It works well over Solartex without any primer. The lower vertical is fiberglassed and should be pretty strong Regards, Maarten Quote Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted January 28, 2017 Share Posted January 28, 2017 Very nice, don't forget to post some in flight shots, or even better a video Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted January 28, 2017 Share Posted January 28, 2017 That looks excellent Maarten. I have a Vmar ARTF Pfeil waiting to be converted to PSS but I don't think it'll look half as good as yours! Quote Link to comment Share on other sites More sharing options...
Former Member Posted January 28, 2017 Share Posted January 28, 2017 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Maarten Werner Posted January 29, 2017 Author Share Posted January 29, 2017 Thanks for the suggestion but Velcro does not seem like a particularly elegant solution. Also I would not like to lose the lower fin in flight.... My LZ is fairly soft so it should be OK since I used quite a bit of fiberglass on the lower fin. I wasn't too worried about the weight because of the long nose. Hardly any nose weight was needed. Regards, Maarten Quote Link to comment Share on other sites More sharing options...
Phil Cooke Posted January 29, 2017 Share Posted January 29, 2017 Looks great that Maarten, superb job! I've always fancied one of these myself, it looks so sleek with that long nose. Can you let on how many formers you have added to the inside of the fuselage building it via the lost foam method? Quote Link to comment Share on other sites More sharing options...
Maarten Werner Posted January 29, 2017 Author Share Posted January 29, 2017 Thanks Phil, with the layup that I use there are no formers needed.. Just a hollow fuse that is plenty strong. Quote Link to comment Share on other sites More sharing options...
Phil Cooke Posted January 29, 2017 Share Posted January 29, 2017 Can you explain to me how you datum and attach the fins and tail to the hollow, thin walled fus? Quote Link to comment Share on other sites More sharing options...
Gordon S Posted January 29, 2017 Share Posted January 29, 2017 If you do have probs with the lower fin, try using 2 or 3 sets of rare earth magnets. I did that with the engine pods on the big B52 i recently built. Think the idea originally came from Andy Meade? Quote Link to comment Share on other sites More sharing options...
Maarten Werner Posted January 29, 2017 Author Share Posted January 29, 2017 Posted by Phil Cooke on 29/01/2017 10:53:36: Can you explain to me how you datum and attach the fins and tail to the hollow, thin walled fus? Sure On all my builds I like to do the wing first so I can make the fuse to fit the wing with a tight wingseat. With the wing attached to the fuse I jig up the wing to zero-zero incidence. Next I mark the incidence for the horizontal and cut out slots for the horizontal. After aligning the horizontal it is fixed provisionally with ca. Next I make fillets from resin/ microballoons to fix it permanently, Same thing for the vertical, of course proper alignment is very important. On this build I set up a light balsa lower vertical and gave it 2 layers of medium glass. Next I made heavy fillets from medium glass and resin, doing 3 to 4 layers, finishing with a layer of splooge and sanding. This made the lower vertical essentially part of the fuselage. Should be strong enough. Maarten Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted January 29, 2017 Share Posted January 29, 2017 I can imagine it cutting furrows in the ground before breaking off! "...finishing with a layer of splodge..." Love it. What a technical term! Quote Link to comment Share on other sites More sharing options...
Maarten Werner Posted January 29, 2017 Author Share Posted January 29, 2017 i Posted by Chris Barlow on 29/01/2017 16:37:58: "...finishing with a layer of splodge..." Love it. What a technical term! Splooge is of course a formal technical term for a mixture of resin / microballoons It is also used for another substance but we will not mention that here..... Quote Link to comment Share on other sites More sharing options...
Former Member Posted January 29, 2017 Share Posted January 29, 2017 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
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