dirk tinck
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Everything posted by dirk tinck
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Channel %limited on transmitter ?
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Fouga magister 1/4.5 moulded from scratch
dirk tinck replied to dirk tinck's topic in Electric Ducted Fan
Hi Peter , It's a hardwood core filled with automotive filler , nothing special ... The last hurdle , before a complete sand-over of the fuselage , are the little additional intakes. I've been thinking about it for days now and i can't think of a simple way to replicate them. i Guess i 'll just go along and see what comes up... There's no way around cutting up the fuse so that's the first thing i did . I'm going to try to make a wooden stamp to make an impression with it in the opening filled with filler... More tomorrow ! -
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Phil's F-86 Sabre build thread
dirk tinck replied to Phil Cooke's topic in PSSA Mass Build 2020 - North American F-86 Sabre
Hang in there Phil ! It's looking good !! -
Fouga magister 1/4.5 moulded from scratch
dirk tinck replied to dirk tinck's topic in Electric Ducted Fan
Hi all ! Not sure how i'm going to copy this slots , i first got the nose cone done.It was a thorn in my eye sinds the left side of the fuse was a little ''rounder''. I solved it now by filling the right side with some automotive filler. You can see on the left side (right side fuse )the fuse is made a little rounder. This change in shape makes a new nose cone unavoidable. I made up a wooden cone filled with polyester filler and sanded it flush with the fuse. to fit the cone later to the fuse , i made up a round plate , a little smaller than the end of the fuse. this will be glued to the fuse later when everything is sanded The actual nose cone will hide this part when assembled.It also will house the nose light. Light at the end of the tunnel !! -
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Fouga magister 1/4.5 moulded from scratch
dirk tinck replied to dirk tinck's topic in Electric Ducted Fan
Example of the additional air intakes: -
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Fouga magister 1/4.5 moulded from scratch
dirk tinck replied to dirk tinck's topic in Electric Ducted Fan
Hi all ! More sanding and shaping on the fuselage. I noticed a little difference in width between L and where the arrow is drawn. I solved it by adding some filler to the fuse . Test fitted the canope frame to the fuse. just a little sanding where the frame touches the fuse. Looking at some pics of the real plane , i decided to replicate the boundry air layer intakes too ( pics later ) . For a EDF propulsion you need every bit of air to the fan you can get , especially with the narrow intakes of a fouga. The real thing flies with only two motors producing 400 kg of thrust each.With a total weight of 2200kg , the model could fly with 4.5 kg of thrust !! Imagine a 12kg model with 11 kg of thrust -
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80.71 exhaust area x100 : 97.5 fsa =82.77% right ?
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I think that gives me 80.71 % right ?
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Hi Simon ,what if the motor diameter was 63 mm ? That's the size used in a schubeler HST98DIA (128MM).That reduces the fsa ,right ?
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The end of the thrust tube saga : Ready to fit when the fuselage is ready...FANtastic!!
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Fouga magister 1/4.5 moulded from scratch
dirk tinck replied to dirk tinck's topic in Electric Ducted Fan
Hi all ! Next on the ''to do'' list is the rear of the fuselage. Tis area needs final sanding to accept the tail cone and the rudders. Not too much work here . -
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