cymaz Posted May 24, 2014 Author Share Posted May 24, 2014 Bad luck John, Evolution info is here I fly my Stampe on third to half throttle....so the 26 should be ok. I will have a look through my pictures to find one of the exhaust. I chose the 33 as it was the weight I needed to get the balance correct and the fuel mix is the same as my Zenoah. Below is how much the exhaust sticks out, not very much and could be painted the same as the cowl...It sticks out at the front about 1cm. Edited By cymaz on 24/05/2014 20:23:43 Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted May 24, 2014 Share Posted May 24, 2014 Hi John H, sorry to hear of your Perry pump woes but I did try to warn you against one. They are awful things and am surprised that they are still available after 45 years or so. My post on 17/5 needs correcting because I have had to move the firewall so far back to accommodate the 155 that the supplied 14oz tank no longer fits. It would also have been way too high for an inverted motor, so I am proposing to try a SLEC 9oz in the original position and a similar 6oz mounted underneath, the two being connected in series. If this does not work due to a rapid change in fuel head I could get a slim tank in behind the carb. even if I have to make a tinplate one, but the motor is so frugal that I doubt that the 6oz would ever be called upon. Got loads of goodies from MRM yesterday, including wheels, pinked tape, miles of Solartex and a couple of dashboards. Tiggy ones are OK for my requirements. Have assembled one and it looks great but that compass got me scratching the grey matter for a while. Martin Mc. Quote Link to comment Share on other sites More sharing options...
John Hill 6 Posted May 24, 2014 Share Posted May 24, 2014 Thanks Martin, nothing ventured nothing gained I suppose, the perry pump certainly pumped you just can't control it, it pumps too much fuel, or too little, also after using petrol for the past few years I forgot just how messy glow fuel is. It's back to petrol for me. if you have some pictures cymaz that wold be very useful Quote Link to comment Share on other sites More sharing options...
cymaz Posted May 25, 2014 Author Share Posted May 25, 2014 Will take some more pictures for you John, have a look in my albums under Precedent Stampe. See if anything in there is of interest. The Perry pump should have a small screw on the back that you can turn in and out to control the flow of fuel. The instructions say that under no circumstances remove it or you will loose the spring. Did your pump have one John?? Edited By cymaz on 25/05/2014 07:58:41 Quote Link to comment Share on other sites More sharing options...
cymaz Posted May 25, 2014 Author Share Posted May 25, 2014 John et al , I have finished the exhaust on my Stampe. I've uploaded a load of pictures on the forum page HERE . Feel free to use them as you see fit. Quote Link to comment Share on other sites More sharing options...
John Hill 6 Posted May 25, 2014 Share Posted May 25, 2014 The picturs are very useful thanks. The exhaust looks very good. the perry pump did have a screw to adjust it but could not get it to run right, it always seamed to be running way too rich. Any way I have converted the SAITO back to petrol agin to give it one last try, with new bearings and a new cam gear it might be better now. If this sitll does not work I will be ordering the Evolution 26GX. Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted May 25, 2014 Share Posted May 25, 2014 John, good luck with the Saito but petrol motors do seem to run hotter then glow. Before you burn your boats on the 26, for very little extra you could get a Laser 155 or 150 which fit in the cowl and sound much better. A club mate bought a 10cc Evo which quit on take off and resulted in lots of damage. It was fine on a ground run. These petrol motors really are overpriced for what you get. I once had a couple of Perry pumps which were part of a job lot and fitted in the back plates of Webra 60`s. Even though the Dynamix carbs were the best you could get I soon gave up with them. You require a needle valve which will shut right down to almost nothing then fiddle with the idle screw. Quote Link to comment Share on other sites More sharing options...
cymaz Posted May 25, 2014 Author Share Posted May 25, 2014 Page 34 of this thread is a very short video of my Stampe running the 33gx. The 33gx is £100 cheaper than the laser 155. Yes, I do own a laser ( in my other Stampe . And I love it to bits too. Edited By cymaz on 25/05/2014 15:45:40 Quote Link to comment Share on other sites More sharing options...
Stearmanandy Posted May 26, 2014 Share Posted May 26, 2014 Hi, nothing about engines, but design Quote Link to comment Share on other sites More sharing options...
cymaz Posted May 26, 2014 Author Share Posted May 26, 2014 Sweeeeeeeet Quote Link to comment Share on other sites More sharing options...
Lego Posted May 26, 2014 Share Posted May 26, 2014 Beautiful covering, what materials are you using. Quote Link to comment Share on other sites More sharing options...
Stearmanandy Posted May 27, 2014 Share Posted May 27, 2014 Oracover silver and blue, but not everything is possible to do with it, as ziczac stripes for example Quote Link to comment Share on other sites More sharing options...
John Hill 6 Posted May 27, 2014 Share Posted May 27, 2014 Wow, that is a nice colour scheme, I'm jealous I wish I'd seen that one. How will you do the fuselage and all the fiddly bits? Quote Link to comment Share on other sites More sharing options...
John Hill 6 Posted May 27, 2014 Share Posted May 27, 2014 I've ordered the Evolution 26GX by the way, I can't wait to put it in this, and maybe one day I'll actually get to fly it? Quote Link to comment Share on other sites More sharing options...
cymaz Posted May 27, 2014 Author Share Posted May 27, 2014 Oooooh that's nice Quote Link to comment Share on other sites More sharing options...
Stearmanandy Posted May 27, 2014 Share Posted May 27, 2014 Well I think the fus and the wings will be the fastest part, most work has been the rudder so far. Thanks for the complements Quote Link to comment Share on other sites More sharing options...
Pegasus Posted May 28, 2014 Share Posted May 28, 2014 Those Stampes all you guys look a real picture and credit to you. This thread Cymaz has been very helpful. I am just over 1/2 way thru my build, I hope I don't get the same problems of overheating as some of you have had, I am using a DLE 35r as the power source, I am going to duct the air flow and use louvers to create a Venturi effect to help draw and evacuate the warmed air. my color scheme is very boring compared to you chaps artistry. My Stampe is based on the one at Duxford, mostly because we live not to far away and visit frequently. It's just a plain old blue. Would love to visit green acres and see your planes one day, and maybe fly up there with you all and my Stampe. cheers pilots.....blue sky's tony Quote Link to comment Share on other sites More sharing options...
cymaz Posted May 31, 2014 Author Share Posted May 31, 2014 Tried out the new exhaust today. Worked a treat. See it up close at Greenacres - weather Gods permitting. The exhaust was eventually made from box section aluminium and aluminium tubing, copper being far too heavy, even by my standards. I had a speciality welder do the welding. It cost me £80 but it was worth it. Quote Link to comment Share on other sites More sharing options...
cymaz Posted June 1, 2014 Author Share Posted June 1, 2014 Sorry forgot pictures Edited By cymaz on 01/06/2014 09:12:26 Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted June 5, 2014 Share Posted June 5, 2014 Anyone know the correct-ish shades of blue for a Rothmans in say Spectra, Solarlac or Hammerite please? Getting that close now. Quote Link to comment Share on other sites More sharing options...
Lego Posted June 5, 2014 Share Posted June 5, 2014 Hi Martin when i built my Stampe years ago i covered it in ocean blue glosstex and for the lighter blue i used solarlac lux blue, hope this helps. Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted June 5, 2014 Share Posted June 5, 2014 Looks a nice bit of kit that Cymas John Quote Link to comment Share on other sites More sharing options...
John Hill 6 Posted June 7, 2014 Share Posted June 7, 2014 Hi all here's an update on the Evolution 26GX instillation. I have modified the exhaust so that it will fit inside the cowl, this involved cutting the front side off to make it slimmer at the front and then brazing a new piece of aluminum sheet on, it now fits in perfectly. Edited By John Hill 6 on 07/06/2014 14:05:28 Quote Link to comment Share on other sites More sharing options...
John Hill 6 Posted June 17, 2014 Share Posted June 17, 2014 Hi cymaz, I had my first flight at the weekend and she is very tail heavy even though I had it balanced on the position on the plan. Am I right in thinking you have yours now balanced 25mm in front of this position, on page 32 of this thread you mention this? Anyway she is down safely, I just need to get the CofG right now. Evolution 26GX had loads of power for it. Edited By John Hill 6 on 17/06/2014 11:11:24 Quote Link to comment Share on other sites More sharing options...
Former Member Posted June 17, 2014 Share Posted June 17, 2014 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
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