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Alan Gorham_ last won the day on April 15 2023
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It's not difficult to enlarge if you download the full-size pdf of the plan which is located a long way down the page under the download files bar: My guess is that you have been trying to enlarge the low-resolution thumbnail at the top of the page.
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Reto Senn was F4H champion, not F4C. Andreas Luthi was second in F4C behind David Law of Australia.
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Southern Modelcraft
Alan Gorham_ replied to Southern Modelcraft's topic in R/C Retailers / Distributors / Manufacturers
Quite a lot of fuels are currently sold out it seems. Hopefully there is a plan to re-stock in time for the rest of summer. -
Actually, perhaps I'm remembering his slightly later Extra 300 design. A build was started on this forum a few years ago. You can see the minimal structure I was talking about.
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I haven't built it, but I do clearly remember the build article in RCME at the time. The designer replicated the tubular metal structure of the fullsize fuselage by using dowel IIRC. So that has to be lighter than slabs of solid balsa.
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All adhesive backed heatshrink fabrics work better with the application of an extra adhesive on harder non-absorbent surfaces such as ply or Ali or GRP. Solartex used balsaloc, Coverite used Black Baron and Sig fabric used Stix it. This is not priming! The video on the Sarik page does use Diacov and it does have subtitles which quote temperatures. I have used Diatex and I can assure you that it needs the entire airframe to be covered with fabric cement prior to the application of the fabric and then the fabric surface sealing with dope after shrinking. Very different to Diacov. So, to me, the video is entirely correct and you have implied the need for priming etc. I have bought a small amount of Diacov from Sarik to trial and I found it stuck to balsa surfaces easily without any additional adhesive as you'd expect, plus the iron temperature was non-critical. I would ignore any verbal info you've been given by Sarik as it seems that they have added unnecessary confusion.
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Is it possible that you are mistaken? The video on the Diacov page on Sariks own website does show Diacov being applied. The difference between Diacov and Diatex is that Diatex has no adhesive layer and the video shows a covering that does have an adhesive layer (plus indicative temperatures). So, I'm not sure what the issue is! https://www.sarikhobbies.com/product/diacov-1000-adhesive-film-for-model-aircraft/
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Didn't Ian say he had an operable sliding canopy on his model? If that's radio operable I'd say that is weight you can well do without for a maiden flight.
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Sciabola or Italian Sabre
Alan Gorham_ replied to Alan Gorham_'s topic in PSSA Mass Build 2020 - North American F-86 Sabre
I suppose I can finish this thread off now with a successful conclusion. After finishing the model in primer, it was successfully test flown in October 2022. I then left it alone until this spring when I painted it and it was flown again at the first PSSA event of the year at the Great Orme. -
Tandem Wing Handling Problems
Alan Gorham_ replied to John Botomley's topic in All Things Model Flying
Have you balanced the aircraft laterally? There's a honking great silencer hanging off the right side which may well account for the screwing out of erect loops to the right and inverted loops to the left. -
Anyone know what make this is and if it is worth anything?
Alan Gorham_ replied to Arthur Harris's topic in IC Engines
The photo of the flat twin was easier to identify. It's a Matador 60 twin designed by Derek Giles. It was a homebuilt engine and the plans are still available from Sarik: https://www.sarikhobbies.com/product/matador-60-60-twin-plan-rc1539/ Still no idea on the single cylinder engine. -
Genuinely interested as to why the OP hasn't seen a thread on this subject on the forum.... IE why don't all the other BMFA members on this forum not need to directly contact a member of the BMFA staff here to check for updates to the handbook. Is it because we all check for updates on the BMFA website? Or that we take advantage of the email updates that the BMFA offer on such things as changes to regulations, or even, dare I say it, updates to the BMFA handbook.... It is perfectly possible to help one's self.
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Because you didn't answer my question about which version of BMFA handbook you currently have printed off, plus the fact that you've responded to Andy Symonds statement that an updated version is due soon, that you'll then print off, can I ask again which version you currently refer to prior to going flying? You repeatedly pop up on threads about model flying legislation giving advice, yet it appears you are currently unable to access any copy of the handbook. You also take great delight in jumping into threads from beginners asking for advice and offering them confusing and often out of date or wrong information. I have seen other members ask you this questions before without being answered: do you currently fly R/C models?
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What version of the BMFA handbook do you already refer to? As you could just update it manually if you don't wish to print the whole document again....