Peter Miller Posted February 14, 2011 Share Posted February 14, 2011 That is looking really superb. Well done!!!! Your cowl is a heck of a lot neater inside than mine!!!Edited By Peter Miller on 14/02/2011 18:47:36 Quote Link to comment Share on other sites More sharing options...
Eric Stocks 1 Posted March 3, 2011 Share Posted March 3, 2011 Hi Peter, thanks for putting me on to this site, its great to see the pics of Martyn Garretts build, what a fine job he is doing, I can see this is not going to be an easy build for my first one but these pics certainly help me, for the binding of the undercarriage I stripped some electric wire and used that for the binding, do you think this will be strong enough. Cheers Eric Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted March 4, 2011 Share Posted March 4, 2011 It depends how much wire you used for the binding. Most of the landing loads will be taken by the former as the leg is pushed back. The real stress is at the top of the arms which are trying to move forwards as the leg is pushed back by the landing loads.. Quote Link to comment Share on other sites More sharing options...
Eric Stocks 1 Posted March 7, 2011 Share Posted March 7, 2011 Hi, Ive got a silly question again, is the covering for the top of the Fus done in four seperate sheets and should I be steaming it to get a decent bend ????? Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted March 7, 2011 Share Posted March 7, 2011 Yes, you use four pieces of wood. Choose wood that bends across its width easily. Glue each piece to the sides and leave them to dry standing upright. You can glue all four on at once. Wet the outside of the the wood and then apply heat with a heat gun while bending the wood over to match the formers. Trim along the center spine and repeat for the others. Glue and then pin down. Use short map pins as these can be pushed fully home to hold the sheet down. Quote Link to comment Share on other sites More sharing options...
Eric Stocks 1 Posted March 7, 2011 Share Posted March 7, 2011 Thanks for that Peter, I will try to get some pics done when Ive mastered the covering Quote Link to comment Share on other sites More sharing options...
John Gibbins Posted March 9, 2011 Share Posted March 9, 2011 I have just completed my Vans RV3 and have converted it to electric. The conversion needed some alterations from the plan in that I took the cross section drawing of the cowl and made that F1 thus moving it forward by about 3".The electric motor is then mounted direct onto this former. The plan F1 was made from lite ply and cut about to make a battery access and the top of the model from new F1 to F3 is removable. A vacformed front cowl was made. Due to the new light former a carbon formed undercarriage was used but with spats fitted it is not noticeable The weight is 51/2 lbs and it flew like a dream on it's maiden flight last week, since has had 5 flights. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted March 10, 2011 Share Posted March 10, 2011 I am glad that you are so happy with the model. It might be a good diea to post the details of your conversion.i.e. Motor, ESC and battery.Other people might want to do a similar conversion. Not me If it doesn't go BANG and belch out oil and smoke I am not interested Quote Link to comment Share on other sites More sharing options...
John Gibbins Posted March 10, 2011 Share Posted March 10, 2011 Details are as follows but remember that I used a spare motor which flew my Fougray well. Motor- Tornado 4250. 3-7 lipo capable. 600kv. 720 watt max 60 amp esc as that was what I had in my stock. First flights were using 11.1v, 2200ma battery with a ground wattage of 350. Approx 6 minutes I will obtain a 4s battery with 3600ma to give me more watts and a longer flight time If I could work out how to add an image then I would send one with the modified front end. Quote Link to comment Share on other sites More sharing options...
Martyn Garrett Posted March 10, 2011 Share Posted March 10, 2011 To add an image, upload your photo into the "my Photos" section (make sure the file isn't too big or the upload will fail) then in your post, click the "add image" button next to the u tube button at the top of the post and select the photo you want to attach. Bets of luck! Quote Link to comment Share on other sites More sharing options...
John Gibbins Posted March 15, 2011 Share Posted March 15, 2011 Martyn Thanks for the advice however I am better at building and flying than I am with the computer. I tried to copy the picture but could not paste it into "my photos". Copy and paste works ok in my own files but not here. Any suggestions? It is now past midday and the sun is coming out so as I am retired I am off flying. Quote Link to comment Share on other sites More sharing options...
Martyn Garrett Posted March 15, 2011 Share Posted March 15, 2011 OK John, here it is step-by-step 1. Click on My Photos in the My Account box at the top left of this site. 2. Click on Create a photo album. 3. Enter a name in the album name box and click the "Create Album" button 4. Click "Edit Photos", then "Add more photos". 5. Click on the "Browse" button and locate your photo. 6. If you want to add more than one photo at once, just click the next "browse" button and find the next photo. 6. Click on the Upload Photos button. 7. Once upload is complete you can add more photos. When you've finished make sure you click on "Save Changes". Having uploaded your photos to your album, you can then put them into your forum posts using the button second from right at the top of the "Post a reply" frame. Things to watch out for. If your photo files are too big, the upload will seem to take a long while, then the process will fail. If this happens you either need to make sure your photos are taken at low(ish!) resolution or only upload one at a time. The smaller the files, and the fewer you upload at once, the quicker the whole process will be. Best of luck Martyn Edited By Martyn Garrett on 15/03/2011 20:25:05Edited By Martyn Garrett on 15/03/2011 20:27:15 Quote Link to comment Share on other sites More sharing options...
John Gibbins Posted March 16, 2011 Share Posted March 16, 2011 Martyn, thanks for that, here goes with the picture of the front end of my electric conversion. Quote Link to comment Share on other sites More sharing options...
John Gibbins Posted March 16, 2011 Share Posted March 16, 2011 OK that one went through so here is a pic of the front end in build. A new F1 has been made 3" forward of the plan version, the 1/8 ply cut former is where F1 was on plan. Motor just mounts at the front. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted March 16, 2011 Share Posted March 16, 2011 That is a very neat conversion and a very neat building job too. Quote Link to comment Share on other sites More sharing options...
Eric Stocks 1 Posted March 18, 2011 Share Posted March 18, 2011 Hi Peter, I think you were right saying that I was being a bit ambitious building this model for my first build, but its helping a lot having Martyns photos on line, Im enjoying it and learning a lot, so Im determined to finish it, Imhoping this photo of my progress comes through O.K. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted March 18, 2011 Share Posted March 18, 2011 I have to say that you are doing a beautiful job on it. Keep it up. Peter Quote Link to comment Share on other sites More sharing options...
Martyn Garrett Posted March 20, 2011 Share Posted March 20, 2011 OK here are the final build photos Used blue where Peter's (and the real one!) used red, just to be different. Not sure what happened with the camera here but the colours in the photo are not a true reflection of the real thing! Colour is better in this one and the others. Used the oil cooler air scoop to house the fuel filler, just to keep it all neat. Final build notes:- 1. Covering is Profilm (Oracover) in Golden Yellow. Used one and a half rolls with virtually no waste. 2. All trim including lettering was from Profilm, ironed on using a cool iron to avoid distortion through shrinkage. 3. Spats are a glass fibre pair I had in a draw doing nothing. I was going to make them up as the plan, but the pair I found seemed ideal in shape and size. Needed a bit of repair, then sprayed using car primer (from Halfords) then Dulux Liquid Gloss! 4. All trim and whole spats and rudder were finished off with two coats of Ronseal Diamond Hard Gloss varnish applied by brush. This stuff is water based, can be over-coated after two hours, dries to a good flat finish and seems to be pretty well fuel-proof. All in all, truly excellent stuff, and available from B and Q! 5. To avoid adding lead at the tail, I used 1/4" ply for the fin (as I think I mentioned in an earlier post). Having completed the build and covering, I fitted all the bits (engine, tank, wheels etc.) then checked the balace point. Without any lead at all she balanced about 4mm in front of the point shown on the plan. I decided to leave it like that for the first flight and see how it went. Flying notes. She had her maiden outing today, flown by Peter Robinson, a senior member (don't mean to make him sound old!) at Runcorn Model Association. Wind was 10mph, gusting to 15. She took off after a short roll on about half throttle. Needed just a few clicks of up trim and a couple on the ailerons. Flew the whole flight on no more than half throttle, and low rates. I had a stir of the sticks during the flight and even at these rates she responded very well and felt lively. Slowed her right down to just over tick-over and she didn't look to drop a wing at all, though we didn't actually reach the stall. The only problem we had on the whole flight was a nose over on landing when we landed just short of the strip. Didn't try the flaps - saving that for next time! The Saito FA62 fitted has ample (!!!!) power. Flew using a 12 x 6 APC prop and suffered no overheating issues despite the engine being completely within the cowl. Hopefully this will still be the case when the taps are opened up fully! Final thoughts. An interesting and enjoyable build, with a few new things for me to learn. Never done a wooden cowl before; never done a rolled deck before; ne Quote Link to comment Share on other sites More sharing options... Martyn Garrett Posted March 20, 2011 Share Posted March 20, 2011 I think my last post was a bit big as the last bit seems to have gone missing. I'll try again. Final thoughts. An interesting and enjoyable build, with a few new things for me to learn. Never done a wooden cowl before; never done a rolled deck before; never done a wired and soldered undercarriage before. Overall, I think the results came out rather well (though I say so myself). Thanks Peter, for a great design, which flies even better than it looks. Quote Link to comment Share on other sites More sharing options... Peter Miller Posted March 20, 2011 Share Posted March 20, 2011 I am always happy when someone is saatisfied with a model built from one of my designs. You have done a great job. I am particuallry impressed with your cowling. Not surprised that it took off on half throttle with that engine. The flaps are really effective. The stall is a non-event and she does not drop a wing tip, that parallel chord wing makes life much safer. ONe of our club members has a big ARTF RV-4 and that flies in the same way so the full size obviously makes a perfect model Quote Link to comment Share on other sites More sharing options... Eric Stocks 1 Posted March 20, 2011 Share Posted March 20, 2011 Fantastic Martyn, if mine turns out a fraction as good as yours I will be very happy, this is my first build and your photos have helped me alot, it will be a long time before mine is finished though, im just about to tackle the cowl, looks pretty complicated to me, but Im enjoying it and I chose this one to build because its a great looking model. Cheers Eric Quote Link to comment Share on other sites More sharing options... Martyn Garrett Posted March 24, 2011 Share Posted March 24, 2011 Forgot to mention. Final all-up wieght with Saito FA62, 10 oz tank, alloy spinner etc is 99.5 oz dry. Thats 6.22 lbs. Seems as though I maybe build a little heavier than Peter. I'm sure if I tried I could have got some weight out of the cowl, and yes both the engine and tank will be heavier than Peter's model. And I did use spruce for the spars (there's a least 1/4 oz there!!) Anway, the extra weight doesn't hurt it at all. Quote Link to comment Share on other sites More sharing options... Peter Miller Posted March 24, 2011 Share Posted March 24, 2011 Interesting that it still flies so well with that extra wing loading. Quote Link to comment Share on other sites More sharing options... 4 weeks later... Eric Stocks 1 Posted April 17, 2011 Share Posted April 17, 2011 My first cowl was a complete disaster so I started all over again and I think Im getting somewhere with this one, it certainly is a big learning curve but at least Im learning Quote Link to comment Share on other sites More sharing options... Peter Miller Posted April 17, 2011 Share Posted April 17, 2011 That is the way we all learn, by trying something completely new. Once done we have a new technique in our armoury. I still like to try new ideas when I can. Sometimes a new construction method, sometimes applying a technique or gadget from another hobby. For example, the head rest on my RV-3 is covered in super fin leather obtained from a dolls house shop and did you know that you can by scale piano hinge from Hobbies or Hobbys (Two different companies,) can't remember which does the piano hinge. I sometimes spend ages trying to work out how to do something, then it comes to me, often at 4 in the morning. Quote Link to comment Share on other sites More sharing options... Prev 1 2 3 4 Next Page 3 of 4 Join the conversation You can post now and register later. If you have an account, sign in now to post with your account. Note: Your post will require moderator approval before it will be visible. 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Martyn Garrett Posted March 20, 2011 Share Posted March 20, 2011 I think my last post was a bit big as the last bit seems to have gone missing. I'll try again. Final thoughts. An interesting and enjoyable build, with a few new things for me to learn. Never done a wooden cowl before; never done a rolled deck before; never done a wired and soldered undercarriage before. Overall, I think the results came out rather well (though I say so myself). Thanks Peter, for a great design, which flies even better than it looks. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted March 20, 2011 Share Posted March 20, 2011 I am always happy when someone is saatisfied with a model built from one of my designs. You have done a great job. I am particuallry impressed with your cowling. Not surprised that it took off on half throttle with that engine. The flaps are really effective. The stall is a non-event and she does not drop a wing tip, that parallel chord wing makes life much safer. ONe of our club members has a big ARTF RV-4 and that flies in the same way so the full size obviously makes a perfect model Quote Link to comment Share on other sites More sharing options...
Eric Stocks 1 Posted March 20, 2011 Share Posted March 20, 2011 Fantastic Martyn, if mine turns out a fraction as good as yours I will be very happy, this is my first build and your photos have helped me alot, it will be a long time before mine is finished though, im just about to tackle the cowl, looks pretty complicated to me, but Im enjoying it and I chose this one to build because its a great looking model. Cheers Eric Quote Link to comment Share on other sites More sharing options...
Martyn Garrett Posted March 24, 2011 Share Posted March 24, 2011 Forgot to mention. Final all-up wieght with Saito FA62, 10 oz tank, alloy spinner etc is 99.5 oz dry. Thats 6.22 lbs. Seems as though I maybe build a little heavier than Peter. I'm sure if I tried I could have got some weight out of the cowl, and yes both the engine and tank will be heavier than Peter's model. And I did use spruce for the spars (there's a least 1/4 oz there!!) Anway, the extra weight doesn't hurt it at all. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted March 24, 2011 Share Posted March 24, 2011 Interesting that it still flies so well with that extra wing loading. Quote Link to comment Share on other sites More sharing options...
Eric Stocks 1 Posted April 17, 2011 Share Posted April 17, 2011 My first cowl was a complete disaster so I started all over again and I think Im getting somewhere with this one, it certainly is a big learning curve but at least Im learning Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted April 17, 2011 Share Posted April 17, 2011 That is the way we all learn, by trying something completely new. Once done we have a new technique in our armoury. I still like to try new ideas when I can. Sometimes a new construction method, sometimes applying a technique or gadget from another hobby. For example, the head rest on my RV-3 is covered in super fin leather obtained from a dolls house shop and did you know that you can by scale piano hinge from Hobbies or Hobbys (Two different companies,) can't remember which does the piano hinge. I sometimes spend ages trying to work out how to do something, then it comes to me, often at 4 in the morning. Quote Link to comment Share on other sites More sharing options...
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