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  2. isoaritfirst

    Double-vision when flying?!

    Typical migraine symptom. Drink more.
  3. Feefo

    Double-vision when flying?!

    I've had something similar to you when on the computer for excessive amounts of time, probably had it when I've been playing games too long too, but never when flying thankfully. I guess if you didn't want to go OTT on fluids you could try some hydration tablets, but the ones I tried a few years ago were pretty awful TBH but they did the job.
  4. Today
  5. StraightEdge

    Double-vision when flying?!

    On at least two occasions now I've experienced really painful double-vision when flying my Middle Phase in big winds (30mph plus). It either turns into a pink-and-black P-38 Lightning or a pink-winged biplane!! This hasn't happened when flying the Ahi closer in in less windy weather. The first time was a couple of weeks ago flying the west slope off Liddington Castle south of Swindon with the sun in the same part of the sky. It happened again yesterday afternoon on Uffington White Horse hill with the wind coming right up the bowl from the NW, so not directly into the sun. This time I'd brought proper workshop goggles as I thought it may have been the pressure of wind on my eyeballs behind my prescription glasses/sunnies, and possibly drying them out, but they made no difference at all. The only thing I could do once it started was close one eye for a while, then the other, holding the MP out high until the wind had abated enough to come in and round for a safe landing - for this I opened both eyes for proper depth perception! I then had a rest after my my chum who was also flying and photographing had left and drank my flask of hot tea. When I briefly went up again the problem did not recur, but it was getting too wild (a period of 40mph gusts) to be safe so I landed and finished the session. I later recalled that last year, after too long on the computer one afternoon, I'd suddenly experienced wave-like vision in one side of one eye which went on for about ten minutes - making me anxious that it was some kind of mini-stroke?! Fortunately the doctor on NHS 111 diagnosed an "Ocular Migraine". When I mentioned all this to another slope-soaring chum, he suggested that on all three occasions I was probably a bit dehydrated. This makes sense as all three instances were after lunch but before having any late-afternoon tea - digestion uses a lot of the body's available water, denying the brain (of which eyes are a direct external part) sufficient hydration. Solution then will be to keep well hydrated on the slope... and worry about having multiple wazzes on a busy hillside later!!
  6. satinet

    New Kingmax fuselage servo

    Yes. If they fit.
  7. StraightEdge

    Dlg elevator trim

    Looks like you're pretty close Mark but this windy weather isn't going to help fine-tuning anything. Wait now till next week when we're due some more calmer weather!
  8. Ollie witt

    New Kingmax fuselage servo

    Hi, Just ordered a couple of these, intended for an electric f3b model vtail. Are they suitable? Thanks
  9. wookman

    Yorkshire Slopers

    Only problem I had with very early morning flying was condensation forming on the aeroplane stopping the wing tape sticking properly. Make sure to take some kitchen roll.
  10. AJ993

    ESC settings

    Hi Mike, I'm certainly no expert but maybe try changing the Timing to 12 from the 6 you've got it set to now. I believe that the motor specification gives 8 degrees but the programming card only allows 6 or 12 to be selected. I have mine set to Auto-Timing but my motor is a Tenshock 1515T. Regards, Alex
  11. Mark Evans

    Dlg elevator trim

    I’ve clearly got dodgy eyes, another look at it today, and putting a credit card across the hinge shows I’m carrying only the slightest amount of up trim in my cruise mode. Without the card it actually looks more than it is, probably no wonder I haven’t been able to glue a vert on straight in the past without a square lol. The dive test from 20-25m to check elevator trim has it only just about pulling up before it would hit the ground. And my Zoom mode only takes a very few clicks of down to climb straight after launch so I think I’m pretty close. As for it nosing up now and then, I’m probably just expecting it to fly hands off for longer than it should and the air wasn’t exactly smooth when I last flew. I like the way if flies so going to stop messing. Thank you for the help guys.
  12. pdel

    Yorkshire Slopers

    Just back from a very short session at Baildon NW . Very windy, 20mph gusting to 30, blew my woolly hat off. I flew my old Hobby king Speedy as it suits these blustery conditions. There was plenty of lift and some thermals even this early. Speedy was a pleasure to fly though in the past the wings came off at the bottom of a fast loop, it's still in my mind even though everything is repaired and strengthened. Rain came to end things. I could see it coming and landed on the path having gone too far back but was very pleased with the recovery and landing. In my mind I sometimes here fellow flyers from a couple of years back giving me little words of advice . As I trudged back to car the rain stopped and I thought about going back up. " No, it was a great little session let's leave it at that" Back home now for breakfast. Paul
  13. tomc

    carbon fin vs balsa weight

    yes, I understand the theory, its just putting it into practise that is problem. I try and have a plan, but if the launch is not as good as I hoped or I have a few stalls the model does not always comply. A bigger field would help, but the one I use is 30 seconds walk from my back door, so its dead easy to watch the wind and pop out just when its super calm. Tom
  14. Yesterday
  15. Phil.Taylor

    DG-303 HF-Modell all-moulded

    It flies ! Maiden flight on a local Devon slope this afternoon - blowing 25-30mph - had to be done. Flew ok from launch but dive test immediately pulled up - very nose heavy. Flew better on the second flight with 20g of lead taped to the tail end. Its fast, its aerobatic in a smooth sort of way, looks good in the air - good fun & worth exploring further. Video of maiden to follow when its edited - maybe next week. Phil.
  16. MikeDLG

    carbon fin vs balsa weight

    It is important to land as directly in to wind as you can. That is one reason I have a rod with a piece of string attached to my TX. Easy to see wind direction, no need to suck my finger and hold it up . Landing cross wind is asking for trouble. Better to land down wind than attempt low turn and end up skidding sideways and breaking the fin.
  17. mikef

    ESC settings

    Thanks Peter. Neil Jones kindly remade the soldered joints for me, direct to the motor, no connectors. I have a watt meter I can video the startup to see current draw. I will experiment when I can safely run outside on a test stand - bit breezy at the moment.
  18. PeteMitchell

    ESC settings

    Problem most likely is not related to the AMRT. As I understand it, startup speed refers to the voltage increasing, either as programmed by the esc or as applied by tx throttle (or both together) to make the motor rotate faster Startup power is Amp draw at the motor to provide power to overcome the resistance caused by the prop as the voltage tries to make the motor rotate faster. Hope some one will correct me if this is wrong. Without a prop on, the motor start pretty much instantly and will run very fast even at low voltage and most manufacturers warn against running fast without a prop. One possible cause of erratic starting worth checking on is the solder joints in the wires and plugs between the motor and the esc. All my models have YGE esc. and they are very reliable. I have burnt one out, it was my fault, I sent it back to YGE who repaired it. Total cost of postage to and from Germany and the repair was about £55 which was a lot cheaper than buying another 65LVT.
  19. Sheepish

    How to acquire Tungsten ballast ?

    No problem, another possibility might be this company too. https://www.dymetalloys.co.uk/ Both of these companies make tungsten blanks for tool manufacture. They have a wide variety of standard shapes and also specials for their customers. As sintered pieces would probably do for ballast pieces (grinding it is expensive) and if you can use something they have or perhaps some dead stock on their shelf it might not be as expensive as you think. If you do need to grind small chamfers or similar it can be done with a silicon carbide abrasive wheel on a bench glider if you are careful and don’t have many to do.
  20. tomc

    carbon fin vs balsa weight

    sideways load from me not getting all the landings smooth and in a straight line. I have a field 1 min walk away I can fly in, so have been getting out at least once a day while the weather is nice to try and up my skills, so my landings are getting better, but I still cant nail it every time. I think if I made some balsa ones with maybe a carbon sparthen I could almost consider them as expendable until I have improved my landings. O I was wondering about a super thin ply one that might have some flex? tom
  21. mikef

    Dlg elevator trim

    Don't worry about that. There are no points for where your cg is and I have never heard of manufacturers coming around to check... If it suits your flying style it's right.
  22. Mark Evans

    Dlg elevator trim

    I have wondered if I trimmed to fly too fast, and slowing the plane down will just show how much up trim I actually need to carry. On a calm day, just how slow do you trim your plane to maintain level flight? The thing that concerns me is I feel once I have finished that my cg will be far from the suggested range.
  23. Both items now sold. Thanks for your interest.
  24. MikeDLG

    Dlg elevator trim

    That seems to be pulling up quite a lot, if your estimates are correct. You may have too much up trim. It should not be pulling up on its own in level flight. It should continue for a fair distance maintaining its attitude and speed. You may need a relatively calm day or at least one with constant wind speed to check this properly. Gusts will effectively change the flying speed momentarily and affect attitude. Remember, the dive test is pointless unless the glider is trimmed properly for level flight. You can have a rearward cg, but have too much up trim and in a dive test it will pull up. Does that mean it is stable/forward CG? No, of course not.
  25. Elf lot is sold, thanks for your interest.
  26. Mark Evans

    Dlg elevator trim

    Thanks Mike, currently I’m leaving it, I find it flies hands off a lot yet even I can still spot lift with it so I feel I shouldn’t mess with it anymore.
  27. MikeDLG

    Dlg elevator trim

    If you like how it is flying, then leave it alone. The elevator trim will cause next to no additional drag. You generally need different trim for different camber settings, so you are not going to have the elevator always lined up with the tail anyway. Just a note, from the perspective of the glider, there is no upwind or downwind, only from your ground based perspective. So there is no trim difference required. Hence MikeF’s comment about people often stalling when flying downwind pulling up to ‘slow’ it down.
  28. Mark Evans

    Dlg elevator trim

    Thanks Mike, you came across clear even with the duplication. When flying downwind it’s pretty much hands off, it will nose up by itself, but I find it noses up more by itself down wind than up. since I’ve never had anyone else fly my planes, how would you describe a more rearward cg/neutral plane? Will it just be very pitch sensitive or will it really be wandering on roll also and require constant corrections? I may already be just on the side of stable and up the up trim just looks worse than it actually is, especially since it’s not aggressively pulling up from a dive test, just barely reaches level from starting a 45 degree shallow dive at 20-25m height (all I dared with a loose vert yesterday) I like how it flies, just I was re-watching my Bruce Davidson videos and when he talks of trim I wondered if I could really improve mine. Or I fly my planes a bit fast and slowing it down some more would should the true extent of my up trim. I get it’s a balancing act and the dive test is more to show the state of your trim and not necessarily the stability and cg of the plane.
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