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Post by ratcheeroo on Jun 5, 2023 12:43:26 GMT
I think I finally found a good 50mm EDF candidate. Next project after the Rare Bear. Haven't seen too many examples of scratch builds of this.  saab_29_tunnan by Chris McIntyre, on Flickr |
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Post by Mr NCT on Jun 5, 2023 21:22:41 GMT
That looks like it should have plenty of room for everything with a straight shot front to back for the thrust tube. I like it!
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Post by ratcheeroo on Jun 6, 2023 8:28:00 GMT
Those were my thoughts exactly. Pretty pumped to get on this one, already built it in my mind twice now lol so hopefully it will go quick. Rare Bear needs to finish first before I jump into this one, should be a little rocket.
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Post by ratcheeroo on Jun 6, 2023 12:38:17 GMT
Here are the set of plans that I will use as a reference, a lot of stuff will have to be done differently but its a good base to get it going. I have found a build manual for a large kit version of this plane that gave me a lot of ideas on construction. Wingspan is is just a bit over 26" with a 23' length. Just them them to print LOL !! I love my job, lots of perks like being able to print full size plans as needed.  IMG_20230606_092854_031 by Chris McIntyre, on Flickr |
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Post by Burkeomatic on Jun 12, 2023 3:50:34 GMT
Oh, that's awesome. It looks kind of like a little mig 15, but the tail will be easier to build. That will be great!
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Post by ratcheeroo on Jul 6, 2023 1:03:36 GMT
Rare Bear is pretty much there so time to keep myself busy. Wing basically works out to 3 pieces to form outside and 3 spars for inside and a slight dihedral. The saw tooth leading edge should look pretty cool and hopefully help with stall problems. I think I have all the fuse former centres and holes worked out so I will be cutting those patterns tomorrow night. I have a really good build guide for a kit for one of these , one of those gas turbine expensive things, and its given me a few different ideas to help this build along. Not anticipating this one to take a whole lot of time, the simpler I keep it the lighter it will be is my theory LOL. Here is what the wing plan looks like.  IMG_20230705_213821_221 by Chris McIntyre, on Flickr |
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Post by Burkeomatic on Jul 6, 2023 1:26:54 GMT
Rare Bear is pretty much there so time to keep myself busy. Wing basically works out to 3 pieces to form outside and 3 spars for inside and a slight dihedral. The saw tooth leading edge should look pretty cool and hopefully help with stall problems. I think I have all the fuse former centres and holes worked out so I will be cutting those patterns tomorrow night. I have a really good build guide for a kit for one of these , one of those gas turbine expensive things, and its given me a few different ideas to help this build along. Not anticipating this one to take a whole lot of time, the simpler I keep it the lighter it will be is my theory LOL. Here is what the wing plan looks like. IMG_20230705_213821_221 by Chris McIntyre, on Flickr In my experience, jets are way harder to stall than people say. Heck, the mig 29 will pretty much float down vertically. I'm pretty sure that the "jets are hard to fly and super stally" thing is a conspiracy from the EDF haters and a load of fooey. Then people that don't fly jets repeat it. It is what it is. It will fly great. I am currently jetless right now. I semi-purposefully crashed the F-35 yesterday.... the goal post got me. |
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Post by ratcheeroo on Jul 6, 2023 8:39:53 GMT
Not worried about the stall thing. The original plans I have are for the "B" version of that plane which don't have the saw tooth leading edge but later versions of that plane did and after some research found that that was the reason why they did that. I did it cause they just look cool LMAO!! They put those goal posts in the worst spots at times LOL, I can imagine there was a little carnage there. Semi purposefully means either you weren't happy with it or you got a plan for something else perhaps?
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Post by Burkeomatic on Jul 6, 2023 20:49:07 GMT
Not worried about the stall thing. The original plans I have are for the "B" version of that plane which don't have the saw tooth leading edge but later versions of that plane did and after some research found that that was the reason why they did that. I did it cause they just look cool LMAO!! They put those goal posts in the worst spots at times LOL, I can imagine there was a little carnage there. Semi purposefully means either you weren't happy with it or you got a plan for something else perhaps? I had planned to thin the herd anyways, and the seams were starting to split from the heat/hot glue combo and the elevons were sketch being held onto the DTFB with just tape, which was delaminating no matter how much glue I jammed in there. It was a good flier, but time for something else, so I wasn't trying to keep it from crashing. I was trying to fly a "S" pattern through the goal post and ended up clipping the second one. |
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Post by ratcheeroo on Oct 25, 2023 15:55:13 GMT
Finally got the build going on this. Wing is almost complete, definitely looked complicated but went together pretty well. Fuse parts are all cut, 50 mm edf just fits but I have to come up with a plan for battery location, not a lot of real estate there. It will take something creative to solve that issue I think.  20231022_205424 by Chris McIntyre, on Flickr  20231024_213020 by Chris McIntyre, on Flickr |
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Post by Burkeomatic on Oct 29, 2023 0:35:29 GMT
It looks like there is tons of room in jets, until there isn't. I have found that it is good to err on the side of making them a little bigger. Looking good.
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Post by ratcheeroo on Nov 6, 2023 22:00:49 GMT
Finally back into build mode on this, everything lining up on the fuse so far, looking to have the tail assembly done tonight. feeling like I have a spot for battery now. Wings are another matter, not going to work in their current form but still usable. Will have to come up with another way to mount them as they sit right where that motor and thrust tube are sitting , so no way to get them in like they are now. Think I have a solution. Feels good to be back at the build table, got a few more planes up my sleeve for this year. Here is what it looks like so far.  20231106_174347 by Chris McIntyre, on Flickr  20231106_174422 by Chris McIntyre, on Flickr |
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Post by Burkeomatic on Nov 7, 2023 1:22:22 GMT
Finally back into build mode on this, everything lining up on the fuse so far, looking to have the tail assembly done tonight. feeling like I have a spot for battery now. Wings are another matter, not going to work in their current form but still usable. Will have to come up with another way to mount them as they sit right where that motor and thrust tube are sitting , so no way to get them in like they are now. Think I have a solution. Feels good to be back at the build table, got a few more planes up my sleeve for this year. Here is what it looks like so far. 20231106_174347 by Chris McIntyre, on Flickr 20231106_174422 by Chris McIntyre, on Flickr Could you 3d print a couple of spars with a hole in the middle that the thrust tube goes through, like wraps around it? |
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Post by ratcheeroo on Nov 7, 2023 9:07:50 GMT
Hmmmm, never thought about that. Putting the laser to use not even thinking 3d printed parts lol, although I was considering printing a canopy for this. V-stab is in place now so I can finish building out remaining aft fuse. Wings have been separated and mounts have been made to attach to fuse, you can kind of see the mounts in the pics. H-stab is not glued in yet, rest of fuse will get done first before I glue that. Wings are just kind of mocked into place so that I could get a good look at how this is shaping up, so far so good. Not a whole lot of building left here.  20231106_203037 by Chris McIntyre, on Flickr  20231106_221200 by Chris McIntyre, on Flickr  20231106_221152 by Chris McIntyre, on Flickr |
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Post by droneflyer200 on Nov 7, 2023 15:09:04 GMT
Wow Chris another masterpiece!
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