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David Ramsden

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  1. David Ramsden
    Thanks Simon. That makes sense. The voltage is dropping to 13.6 in flight but when I land it's measuring 14.3 because it's not under load. Perfect. Thank you. So for the sake of preserving the life of my Lipo, stopping when it's 13.6 under load is (I guess) much better than taking it down to 13.6 under no-load. Thanks again. David
  2. David Ramsden
    Hello there. I am using a T6K transmitter with an R3008SB receiver and the required CA-RVIN-700 external voltage input cable. I have it wired in as instructed and connected to a 4S Lipo and I've programmed the Tx to vibrate (alarm) when the Lipo voltage drops to 13.6V. Only problem is, it always goes off when the battery drops to 14.3 or 14.4. Is it possible that there's another setting I have failed to do(?) or done wrong? Thanks! David
  3. David Ramsden
    Well, I finally built her - the Old Phoney. There's more info here:
  4. David Ramsden
    I thought you might like to see the Old Phoney I've just finished. There's three 'build' posts about her on the Dartmoor Slope Soaring Club website https://dssc.bmfa.org/old-phoney-part-4-covering-and-completion/
  5. David Ramsden
    Thanks Wookman & EarlyBird. Yes a strip of clear would be a good idea! My Turnigy iron doesn't show a temperature scale but I had it about 90% of the way to maximum ("high"). The adhesive didn't squeeze or run out but the edge seems well sealed.
  6. David Ramsden
    Hi speed fly-past. Covering stayed on fine.
  7. David Ramsden
    Thanks Nick. Probably never! Here's the thread about her with links to the build
  8. David Ramsden
    Thanks John Steve Chris and Ron, I took your advice and ironed the edge down at higher temp. Had three great flights afterwards totaling nearly 2 hours in the air. Performance great!
  9. David Ramsden
    Hi John, yes I used a combination of HK film and Oracover on my DR420 o/d glider . That has a join all along the LE too. Ora over HK.
  10. David Ramsden
    Just looked back through this thread I started a while back. There are some really lovely looking models in the photos - thanks everyone. Anyway. In the end I embarked on my own design aiming for a cross between two very different models The Deacon and the PD Parasol and using a few of my own ideas for the 'look' and the construction. I'm aiming to keep her very light. Out of respect for Roger Jones 3 and his smiley comment "designing your own 'vintage' model is a bit phoney", I decided to call her the 'Old Phoney'. The Plan is still being tweaked. This is how she looked about three tweaks ago. The ailerons look a bit big but that's cos they're going to be flaperons with quite small deflections and lots of differential. Span will be 71"
  11. David Ramsden
    Third outing with my new own-design slope soarer (the Mediator), still experimenting with the c/g so expected some variation in behavior but I wasn't expecting this... Got to my local slope. Wind's always a bit gusty on Dartmoor. 6-13 mph south westerly face-on to a big but not steep slope. Should be fine. First launch, up to about 40 feet quite quickly, 10 mins, landed, moved the battery further forward. Second launch, 40 feet again, handling better, 15 mins landed fine. Third launch, 10 feet then down down down. What's going on? Tried again - same again. Kept trying. What's going on? Has the wind dropped? No. Changed direction? No. Controls all working? Yes. Trims okay? Yes. If there is such a thing as 'the magic of flight' it was like someone had turned it off. The model was the same, the wind was the same. I was completely baffled. Tried again, and again and then, as she flew past me, loosing the tiny bit of height she had, I heard a very faint low pitched buzzing. Too early in the year for insects. To early in the day for a Nightjar. Then I twigged it. Close inspection of the wing revealed the problem. From tip to tip all the way along the wing the covering had come unstuck on the leading edge. White Hobbyking over pink Solarfilm. Game over. Got home and ironed it down again. Seems to have stuck perfectly but can I trust it? Before you ask, the slope was well within my "local exercise area" and I was alone.
  12. David Ramsden
    Posted by Piers Bowlan on 03/02/2021 14:01:53: How about a 120% scale up of Peter Miller's 58in span Peggy Sue 2, David - with a Leccy conversion (about 70in) Peggy certainly is curvaceous(!!) and I already have a 3s 2200 mah. I'll certainly check out her wing construction. Could be onto something here.
  13. David Ramsden
    Thanks Peter, Piers, KC, and Robin for your posts. Peter those are great colour schemes - I know what you mean. I call it 'inspiration'. Piers, I wasn't looking for plenty of dihedral. Sorry if I said something misleading. The PDP has 1" under each side of a 60" span. The Deacon has 3 1/2" under 52". I was thinking of about 2" under 70"
  14. David Ramsden
    Hi Roger and Peter. Yes I did go through all the 'RC Sport' pages on OZ. Took me three sessions. That's how I found the designs that inspired me. I also looked on various kit websites and did a Google Images search. I didn't find exactly what I wanted hence my original forum post. So. What I'm going to do (I think) is design a 70" Deacon/PD Parasol hybrid. This won't please the vintage purists but never mind. I love designing.
  15. David Ramsden

    David Ramsden posted a gallery image in Member Albums

  16. David Ramsden

    David Ramsden posted a gallery image in Member Albums

  17. David Ramsden
    Thanks Robin. I prefer the Eros to the Cruiser. The only plan I've found so far is for the free flight original (**LINK**). Not seen one with control surfaces but never mind. It certainly does tick some boxes. Very interesting turtle deck and unusually high tail. Nice rounded wing tips too. Looks surprisingly modern given that it dates back to 1948.
  18. David Ramsden
    Hi Robin, You've certainly pulled some very different ideas into this thread! Sadly no, I'm not keen on parasols or pylons or low wings, at least not this time around. What attracted me to the PD Parasol was not the parasol or the fuse shape, it was the wing and tail feather shapes, the ailerons and semi-symmetrical section, the light build and relatively low power needed, slow flying ability and maneuverability. For fuselage shape I like curved top and bottom lines, if possible, a top with a rounded cross-section. Definitely a high-wing, cabin, taildragger, configuration. Around 70" span. This has been a very interesting thread. I'm coming to the conclusion that precisely what I'm looking for probably doesn't exist which is not surprising given that I have such strong pre-conceived ideas (as stated in my opening post). Except for it's fuselage top line and under-cambered wing, Jonathan's recommendation 'The Stentorian' (with the addition of 3-axis control surfaces) is almost exactly what I had in mind. Thanks though. I've really enjoyed everyone's contributions.
  19. David Ramsden
    Posted by kc on 02/02/2021 18:28:19: There is a Mick Smith Mercury which is a very rounded shape and about 78 inch span. A famously good looking design Thanks KC. The Mercury 1V looks great. Very similar to the Thermal Magnet and Stentorian in it's nice rounded wing and tail feather shapes. Interesting to see that someone added ailerons and flaps. Huge but I could scale it down. The Mercury fuselage is much more rounded in section too which is nice. Mind you, I'm still attracted to the 'perky' look of the Deacon which although boxey in cross-section has a lovely top-line curve that most seem to lack. **LINK**. I wonder if it's practical to have a rounded-top fuse that curves upwards. No doubt it's been done before. It would be fun bending the stringers! Maybe I should KIS (keep it simple) and build two different models! Great to hear about the existence of the RC Peacemaker plan. Thank you. That's definitely on my 'future projects' list.
  20. David Ramsden
    Posted by john stones 1 Moderator on 02/02/2021 16:43:39: Well I'm on tenterhooks here, wondering if Thermal Magnet has a chance. Well John. The plan for the Thermal Magnet is pretty sparse whereas the plan for the Stentorian has a lot more detail. Given that the models are so similar I'd say the Stentorian 'has it' by a nose. Mind you, we're not quite on the home straight yet because I'm still not convinced that an under-cambered section is best for the performance/handling I'd like.     Edited By john stones 1 Moderator on 02/02/2021 19:03:36
  21. David Ramsden
    Other recent efforts have been enlarged 'classic' control line stunt models converted to rc. Hi Roger. Converting CL aerobatic models to RC 3D sounds interesting. If you ever do an enlarged RC version of the full-fuse version of the Peacemaker please DO tell me. I'd love that (and probably build one). My last design was a slope soarer inspired by the Peacemaker. I called it the Mediator. I didn't 'stay true' to the original but I respect you for doing so. Coming back to the 'vintage-inspired', I don't know if you are familiar with the Stentorian that Jonathan recommended (above) but that's very very close to the 'look' I want but probably not the right wing section to give me the handling I want.
  22. David Ramsden
    Hi Jonathan, Great recommendations! Thank you. Not so keen on the Centaur but the Stentorian and Thermal Magnet look almost perfect. Lovely wing and tail feather shapes. I'm not sure about adding ailerons to an under-cambered wing section but there's probably plenty of members who will jump in and say they've done it with success. In terms of handling I'd like SOME of the manouverability of the PD Parasol **LINK** and the slow gentle flight of a Junior 60 **LINK** Thanks again. David Edited By David Ramsden on 02/02/2021 16:55:15
  23. David Ramsden
    personally I think designing your own 'vintage' model is a bit phoney Thanks for the great tips Roger. It's great to know that ailerons are effective without reducing the dihedral that helps give vintage models such character. I read differing opinions about strip ailerons and barn doors. There are plenty of examples of both so I guess there's not much to choose between them in some respects. The Debutante has a lot of straight lines and I think it's trike u/c makes it look quite modern. The Southerner has a lovely fuselage but I've never liked polyhedral wings. Sorry. I agree that designing a model in 2021 and calling it "vintage" would be phoney. Maybe calling it vintage-style or classic-inspired would be more acceptable. If I design my own maybe I'll call it 'The Phoney'. As I said at the outset, I have a pretty fixed idea of what I want. I just thought it was worth putting up a forum post just encase it already exists.
  24. David Ramsden
    Posted by kc on 02/02/2021 11:15:08: If you want a sleek high wing 70 inch model then the Laddie Mikulasko ' Easy 100 ' might be suitable. Plan is on Outerzone and can be with wheels or floats. You might consider the 71 inch Cloud Niner by Bill Winters and maybe look at Vagabond Revisited or Tern from the same designer - a high wing specialist. All on Outerzone. Snowy Owl or Gull Sport by A. G Lennon might also be worth looking at for inspiration and design features. Edited By kc on 02/02/2021 11:25:35 Edited By kc on 02/02/2021 11:33:50 As for your 4 suggestions, thanks KC but far too modern-looking and too many straight lines for my liking. Sorry.
  25. David Ramsden
    Posted by Peter Miller on 02/02/2021 11:06:04: Why not just get a nice big sheet of paper and start from scratch. That way you get exactly the shape that you want. Hi Peter, Because designing is 'my thing' that's almost certainly what I'll do. But beforehand I thought it was worth trying to find out if what I want already exists.
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