Glenn Howcroft Posted April 16, 2007 Share Posted April 16, 2007 Hi ...I've just uploaded a few pics of my latest project to the Gallery pages. A 400 Brushless powered Supermarine Walrus. Pics are before test flight. If it comes back in one piece !!!... i'll add some detail and paint ...Well i'm off to test it .. fingers crossed. Quote Link to comment Share on other sites More sharing options...
Glenn Howcroft Posted April 16, 2007 Author Share Posted April 16, 2007 Well ...Flew ok. Hand launched on only 2/3 throttle and of she went. If anything its overpowered. Struggled a bit on the aeleron turns, need coupling with the rudder i think. May also move the CG further back as its a bit nose heavy. Quote Link to comment Share on other sites More sharing options...
Nick Chudley Posted April 25, 2007 Share Posted April 25, 2007 About aileron turns... I got some advice from Ivan Pettigrew,who makes the world's best plans for flying boats. He says start your turn with the rudder. Then just use the aileron gently to stop the yaw. You won't need much and you will need to return the ailerons to neutral quite quickly, or even reverse them - Due to the fact that the outside wing on a turn is generating a lot more lift. It certainly works with the Catalina I've got and it might work with your little beauty, though I know yours is a very different animal. How did things go with it on the water Quote Link to comment Share on other sites More sharing options...
Glenn Howcroft Posted April 25, 2007 Author Share Posted April 25, 2007 Hi Nick ...Thanks for the info .. thinking about the flights with the Walrus it does not need much aileron to start a turn and I do need to put some opposite in, to hold it in the turn . Its a certainly feels very different compared to other scale planes i've had, mainly ww2 fighters ... I'm afraid I've not tried it on the water yet, it's not been sealed against water .... yet , or painted. Might take a while with work etc .. and the fact I've already started to build a 400 size fun fly, very similar to a Limbo Dancer or Couger. Wings are complete just doing the fuselage. Quote Link to comment Share on other sites More sharing options...
Nick Chudley Posted April 26, 2007 Share Posted April 26, 2007 Work etc! How tiresome! Then you come home from work and get extremely unpopular if you spread aeroplane parts all over the kitchen table. I overdid it with the Catalina - 7ft wingspan and all from plans, not a kit.400 size fun fly does give you a lot of bangs for your brownie point. I mean I don't like to buy ARTF, but a small kit does go together quickly without too much collateral damage to goodwill at home. Then you can nip out to the park at lunchtime or on the way home. I have a spaniel who gets his exercise at the same time, chasing after them.Haven't tried to fly the Catalina from water yet, though I did some successful handling tests on a small pond. before I broke it trying to loop-the-loop. The elevator linkage wasn't beefy enough to pull out of the initial dive and it came down for a heavy landing, requiring a return to the kitchen table, etc etc. Quote Link to comment Share on other sites More sharing options...
Glenn Howcroft Posted April 26, 2007 Author Share Posted April 26, 2007 Hi Nick ...Sorry to hear about the Catalina ... hope the repairs go well.The wifes been really good about the plane building because I've not built one for nearly a year. I been into fast electric speed boats for the last couple of years. So have been concentrating on them, and Heli's. Although I still have a F27 Stryker foamy to play with. With upgraded motor and cells of course.I don't usually build from kits either, the Walrus is scratch built as is the 400 fun fly or will be when I finish it !!.I've had only one true ARTF and that was the Ripmax Spitfire 600 size. Went very well with a Megga 22/20/3E Brushless motor on 8 x IB3800 NiMH Cells and a Cam 9 x 6 folding prop.I'm actually looking for a good subject for that same power train at the moment. Thinking of maybe a ME109 or maybe doing a 600 size Pushy Cat type.I'll have to spend a few hours on my CAD pack and see what I can figure out for the 109. I drew up some rough plans for the 600 size Pushy Cat a few months ago but never got round to building it because someone at my local model boat club said they wanted a Walrus for scale day, and I got tied up with that. Oh the joys of R/C models ... Quote Link to comment Share on other sites More sharing options...
Nick Chudley Posted April 27, 2007 Share Posted April 27, 2007 Yup!I thought the Ripmax Spitfire looked really good. I don't think you could build a balsa plane with solite covering for that price.The 600 size Pushy Cat looks as if it could be a lot of fun. I'm a big fan of the kits from Stevens Aero, you can buy them in England from www.electric-planes.co.uk. They've got an Edge 540 which I think would suit your size.I wonder what size they'll do with the plans of the Hawker Typhoon they're decided to build on this forum.you'll have to take the plunge with the Walrus sooner or later!! post a photo. Quote Link to comment Share on other sites More sharing options...
Bustergrunt Posted April 28, 2007 Share Posted April 28, 2007 A walrus eh?? Is it an OD? or did you do it from a plan? Quote Link to comment Share on other sites More sharing options...
Glenn Howcroft Posted April 28, 2007 Author Share Posted April 28, 2007 Hi Nick...I will have a good look at that site. The Ripmax Spit was nice but I didnt like the tail snakes. Both rudder and elevator are by snakes supported at the servo end and where the exited the fuselage at the rear, but no supports in the middle, at least on mine, quite a long unsupported run. This allowed the snakes to flex under load and I had control problems at high speed, i.e coming out of a dive etc. I replaced the snake runs with old stlye hardwood rods with 2mm piano wire ends, solved the problem for me. Flew great after that. Allo Bustergrunt ...The Walrus is OD. I got the 3 view from Eduardospage, (hope I spelt that right). anyway if you do a Google search for Eduarospage you'll get there. Excellent for 3 views.I then imported the 3 view pic into my CAD pack, resized to a 30 inch wingspan and then traced the outlines. I didnt need ribs or the like as I used 1/4 sheet balsa for the wings and 1/8 for the tail bits. There was no plan drawn as such, just the outline.The hardest bit was the motor mount which is just a layered up balsa box sanded to shape with ply motor mount on the end. All cabane struts where 3 or 4 mm carbon rod, mainly becasue I had it and it made for a quick build. Quote Link to comment Share on other sites More sharing options...
Bustergrunt Posted April 29, 2007 Share Posted April 29, 2007 Excellent, thanks Quote Link to comment Share on other sites More sharing options...
Bustergrunt Posted April 29, 2007 Share Posted April 29, 2007 I'm almost finished an aquastar, very cheap at the moment from the states, and it's a very nice laser cut kit... Quote Link to comment Share on other sites More sharing options...
Glenn Howcroft Posted April 29, 2007 Author Share Posted April 29, 2007 Cool ...I'd love to see it, post some pics when it's done if you can .. Quote Link to comment Share on other sites More sharing options...
Nick Chudley Posted April 30, 2007 Share Posted April 30, 2007 Hi Glenn - control problems at high speed, that sounds familiar. I've spent many happy rebuilding hours as a result of flimsy linkages and under-powered servos for the elevator. 'Course there are also some muppet moments due to the extension lead for the elevator servo coming unplugged or better still, trying to hand launch without remembering to check the servo reverse switch on my transmitter - that was a short and dramatic flight!I've just posted a picture of my Aquastar, it's a lovely little plane. I amended mine by installing ailerons and it flies beautifully. I would stay away from water except on calm days though. Quote Link to comment Share on other sites More sharing options...
Glenn Howcroft Posted April 30, 2007 Author Share Posted April 30, 2007 Hi Nick ..The Aquastar looks very nice, as do the rest of the models. I really like the look of the Gladiator. BTW hows the repairs going on the Catalina ..I'm still working on the Fun Fly 400, typeing this as the glue sets on the front former actually. Don't think I'll get round to the 600 size model for a few weeks as I've got a Mini GTM Rigger Hydroplane,(boat), to build for my 12 year old. Bought it unbuilt really cheap from a mate. Should go well on a 4000 rpm/v brushless ... LOL. Hope to get about 30 - 40 mph out of it.... but enough about boats .. Quote Link to comment Share on other sites More sharing options...
Bustergrunt Posted April 30, 2007 Share Posted April 30, 2007 I'll post pics as soon as it's completed Quote Link to comment Share on other sites More sharing options...
Bustergrunt Posted December 6, 2007 Share Posted December 6, 2007 http://forums.modelflying.co.uk/sites/3/images/member_albums/27194/TD_004_0.jpg Quote Link to comment Share on other sites More sharing options...
Bustergrunt Posted December 6, 2007 Share Posted December 6, 2007 Quote Link to comment Share on other sites More sharing options...
Glenn Howcroft Posted December 6, 2007 Author Share Posted December 6, 2007 Hi ...The Aquastar looks great ... let me know how she flies as I'm interested in buying one. Some of the lads at my boat club are building seaplanes for more watery fun. Boats get boring ...LOLJust uploaded a couple of pics of my 400 Funfly to the Gallery. Flies well on a brushless 400, 2000kv on 8 x 1400 NiMH cells and a 7 x 5 APC-E prop. Will ROG, do any manouver I can throw at it except prop hang. Needs a outrunner and 3 cell Lipo for that I think ... will probably fit one in the new year. Have fun ... Quote Link to comment Share on other sites More sharing options...
Bustergrunt Posted December 6, 2007 Share Posted December 6, 2007 It flies so good,...i sold it recentley. seriously though, I'm going to get another and mod it a bit to make it better I reckon we're off to Florida on Hols next year and at $34 a shot, i'm going to bring a feew kits home and flog them to some club mates...As an R/E plane, it flies nicely on brushless and LiPo, 15 mins on a 1200 lipo easily Quote Link to comment Share on other sites More sharing options...
Nick Chudley Posted December 7, 2007 Share Posted December 7, 2007 Hello guys! The Limbo dancer looks really good, Glenn, and I was admiring your Polikarpov BG. Did that come in a kit?Summer's been good to me. I can just about build planes as fast as I crash them. I set the Aquastar on fire when water got in the ESC! The Catalina is well under control nowadays, very slow and dignified. Though I did manage some barrel rolls and loops without mishap. It's actually harder to handle on water than in the air and I'm a bit scared of running out of battery before I get it to the my side of the lake. That big tail just means it wants to go upwind all the time. My present project is a Depron Lancaster, 5' wingspan from Green Air Designs. I flew it once before it was painted and finished. Now I'm waiting for some fine weather to complete a proper maiden flight. It looks really impressive and has a great presence in our front room. P'raps I should just turn it into a coffee table. The weather forecast looks terrible.My favorite 3D plane was a Stevens Aero Stella, which went beautifully for a couple of years before I got carried away trying to do something clever too close to the ground. I had to fetch a bag to put the bits in. So now there's a space in my garage for something like that Limbo Dancer.CheersNick Quote Link to comment Share on other sites More sharing options...
Terence Lynock Posted December 7, 2007 Share Posted December 7, 2007 If anyone is feeling adventursome I have a file sumwheres on my PC for the plans of a MC72 that you can print out with 'Tile Print' to any scale,I can pass them on to other model makers as long as they are free. Quite tidy plans as i recall and if you want to go totally crazy fit the contra-rotating prop system recently featured in the mag, would make one hell of a model down the pond!, best regards, Terry Quote Link to comment Share on other sites More sharing options...
Glenn Howcroft Posted December 7, 2007 Author Share Posted December 7, 2007 Hi all ... Nick ... thanks for the nice comment about the Mini Limbo Dancer, its loads of fun. But ... what's a Polikarpov BG when it's at home ??? ... The only other pics I uploaded, a while ago now, were of a prototype Supermarine Walrus, 400 size again. Sadly it resides in the great bin liner in the sky now ... Ooooops.Already on to my next project, a ME109-E ... started skinning the fuse last night. Still loads to do though. This ones a bit bigger, about 48 inch span. Using a Megga 22/20/3E for the grunt. With 8 x 4300 NiMH for the batts.Terry ... THe MC72 looks cool. Your right, it would REALLY cause a stir at the boat club .. LOL. I'd love to see the plans .All the best .. Quote Link to comment Share on other sites More sharing options...
Nick Chudley Posted December 7, 2007 Share Posted December 7, 2007 Polikarpov??Bustergrunt has one on his gallery page. A scale-ish model of a stumpy little Russian fighter. Looks like fun to fly. That guy has a lot of interesting planes, eh? MC72, I just looked one up one in Google. What a beauty, looks a bit like the fore-runner of the Spitfire, Supermarine S6. The Italians had some very good engineers in those days. CheersNick Quote Link to comment Share on other sites More sharing options...
Terence Lynock Posted December 7, 2007 Share Posted December 7, 2007 The MC72 plans are OK and even contain a plan for a take off dolly so you can fly it off dirt/grass etc, also have a plan for a Shavrov 2(?) which saw extensive service with the Russians for many years, regards, Terry Quote Link to comment Share on other sites More sharing options...
Terence Lynock Posted December 7, 2007 Share Posted December 7, 2007 I use 'Tile Print' quite a bit for printing out plans downloaded off the net or sent to me as DXF / DWG / Jpeg etc files, its available for free download at www.blackflight.com but you have to pay for the activation code but its quite cheap.'Tile Print' allows you to call up a plan file then by using the ruler button you give a measurement between two points say the wing span, it will then adjust all measurements according to that single measurement and you can then print the whole plan with register marks to stick all the A4 bits together, with care it is very accurate.I trim off the edges where needed to the register marks so I can match up to the next ssheet and glue them together with Pritt Stick and up to now have had no problems at all, you can scale very accurately with 'Tile Print' and well worth having on your machine, regards, Terry Quote Link to comment Share on other sites More sharing options...
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