Dave Potter Posted November 10, 2010 Share Posted November 10, 2010 Hi Folks, Can anyone give me any information on fitting my OS 52 4stroke into my Magnattila 11 There looks like a lot of cutting out on the bulkhead. How much can i cut out without losing to much strength Thanks for any help guys...... Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted November 10, 2010 Share Posted November 10, 2010 When I built my Magnatilla I fitted an OS 40 LA ,so loads of room.I watched 1 today with an OS 52 4 stroke in it and it flies superbly,good choice.I remember the Bulkhead being quite substantial when I built mine.I also used a second cowl to give more room when I built mine,everything fitted better.I did see one without the extension and the engine poked right out of the cowl.Maybe this is how you could gain extra space Quote Link to comment Share on other sites More sharing options...
Hamish Posted November 10, 2010 Share Posted November 10, 2010 David can you provide a pic. Do you really have 1674 photos in your album? Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted November 10, 2010 Share Posted November 10, 2010 Or is it 1 Quote Link to comment Share on other sites More sharing options...
Hamish Posted November 10, 2010 Share Posted November 10, 2010 Stephen, if you click on his "1" photo and then on to "latest image" you get number 1672 image???? Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted November 10, 2010 Share Posted November 10, 2010 There's an error here - the OP asked ages ago about how to post a picture, yet following advice, has not yet created any albums. Quote Link to comment Share on other sites More sharing options...
ken anderson. Posted November 11, 2010 Share Posted November 11, 2010 hello david....all them year's ago i had a mag......and fitted a saito 40 4st......i had the same prob as you describe........what i did then was cut a large hole in the former (F1)to accomodate the rear carb etc.......and then between F1 and F2... i reinforced it with some ply....hope that comes over ok........so i left the former's as they were....but removed enough wood to fit the 4st.......and 'beefed up between the two former's.....it'll be ok-as the mag's are over engineered at the front anyway.......i flew mine for 18 month's +.... ken anderson ne...1. Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted November 11, 2010 Share Posted November 11, 2010 I see what you mean Hamish,Davids nicked everyone elses photos Quote Link to comment Share on other sites More sharing options...
Dave Potter Posted November 11, 2010 Author Share Posted November 11, 2010 Thanks for the information you have all provided lads. As for the pictures I still haven't mastered how do do it yet. Sorry about nicking every one elses photos I don't know how i done this but i will remove them as soon as possible. Quote Link to comment Share on other sites More sharing options...
Djay Posted November 11, 2010 Share Posted November 11, 2010 easiest way is to mount he engine as normal, with a cutout in the bulkhead for the carb, to allow the engine to sit back as far as possible. You may have to cut a slot in the bulkhead for the needle valve, but the main strength is in the bearers, so this is not an issue. Then measure the distance from the bulkhead to the rear of the prop driver and the length of the cowl. usually the cowl is to short by 1/4 to 1/2 inch. Get some balsa sheet and make a thick and wide spacer to get the cowl the right distance,and fit this to the bulkhead and attach the cowl mounting blocks to this. Then when you mount the cowl the prop will be the corrrrect distance from the front of the cowling. Sand and flush the spacer with the fwd fuselage. This also helps eliminate a lot of nose weight these planes normally need. Do this to all my Flair models including the Hannibal and DR1 and no issues so far. Hope this is understandable, and helps. Darryl Quote Link to comment Share on other sites More sharing options...
Magnar Schou Olsen Posted November 14, 2010 Share Posted November 14, 2010 Here is a pic. of my Magnattila with a ASP 70, It is the earliest version of the kit. Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted November 14, 2010 Share Posted November 14, 2010 Your Magnatilla looks a bit special Magnar,how is that effect made and do you have a photo of the whole model? Quote Link to comment Share on other sites More sharing options...
Hamish Posted November 14, 2010 Share Posted November 14, 2010 My Maggy was made exactly as Darryl describes with no cut out in the bulkhead and the engine mounted on its side all enclosed within the cowl. I had intended to scratch build a replacement Maggy but have been diverted to another project. Maggy was in boot for today but it looks like rain stops play, which should let me get on with the other project Quote Link to comment Share on other sites More sharing options...
Dave Potter Posted November 14, 2010 Author Share Posted November 14, 2010 WOW Magnar that looks really hot mate, How did you do the patten on the cowl, and how did you cut the big hole in the front of the cowl. Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted November 14, 2010 Share Posted November 14, 2010 Do you mean the very front of the cowl where the prop sticks out because mine came with that part already cut out Dave,and when I bought a spare that was the same.. Quote Link to comment Share on other sites More sharing options...
Dave Potter Posted November 15, 2010 Author Share Posted November 15, 2010 Hi Stephen, I do mean the front of the cowl theres a very small hole in the front. My Magnttilla 11 Is a revised version of the last one so maybe there cutting down to save money and leaving the hole for the builder to sort out.It's going to be a hard job to do so I think I'll take a leaf out of your book and try to get one with the hole already cut out I bet it's going to be difficult. Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted November 16, 2010 Share Posted November 16, 2010 That would be a real task Dave,I got mine from Galaxy,and when I bought an ols mag for parts the guy gave me a new one which I also used. Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted November 16, 2010 Share Posted November 16, 2010 It looks like this thread is duplcated Quote Link to comment Share on other sites More sharing options...
Hamish Posted November 17, 2010 Share Posted November 17, 2010 Well I stupidly tried to fly too slowly yesterday, experimenting with flaps, and she dropped a wing and down she went. Wing broken, some damage to fuz and cowl well bashed. Now not going to replicate but to do a complete renovation with a new wing, new cowl and total recover, might even put new bearings in the OS. Will keep all the advise above in mind when it comes to the cowl. Had too many crashes recently and my fliers are diminishing so must get renovating. Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted November 17, 2010 Share Posted November 17, 2010 We do seem to go through a faze like this Hamish dont we Quote Link to comment Share on other sites More sharing options...
Dave Potter Posted November 17, 2010 Author Share Posted November 17, 2010 Stephen, I phoned up Sussex Model Center and told them about the cowl and there going to replace it with one already cut out. I think the one they sent me was a Friday afternoon one.Thanks Stephen. I'd like to thank everyone that tried to help me.It's good to know that you guys out there are willing to help. Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted November 17, 2010 Share Posted November 17, 2010 Really pleased to see you had such good service,it makes the job easier and with respect neater. Quote Link to comment Share on other sites More sharing options...
Magnar Schou Olsen Posted November 20, 2010 Share Posted November 20, 2010 Sorry for the late reply. More pics of my Magnattila can be found in my photos. The pattern on the cowl is made with a piece of those abrasive padds, glued to the end of a 10mm dowel, and then carefully making the pattern with a slow running drill. The hole in the cowl, was made with tinn snips , making several cuts so not to destroy the cowl, then the last bit is done with a file. I was afraid the ASP 70 engine was to big, but you can always throttle down. It balances with the battery behind the servoes, with no additional weight needed. Allways nice to have some extra power. Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted November 20, 2010 Share Posted November 20, 2010 Very nice Magnar,That should give Dave inspiration especially the pilot.Mine had a OS 40 LA inThink thats a starter motor for your ASP 70 Quote Link to comment Share on other sites More sharing options...
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