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Underwood

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Everything posted by Underwood

  1. Underwood
    UK SSDR spec is 35 knots/ 40mph or under stall The guy at the show with the Ultracruiser was stating 25mph, must be a substantial increase in wing area from the hummelbird to get such a difference in stall speed. perhaps there are also weight savings in the ultracruiser build.
  2. Underwood
    The SSDR class here in the UK allows the choice of engine entirely up to the builder. Someone actually got the smaller winged Hummelbird like yours I believe into the SSDR class, but I don't know how he managed to get the stall speed low enough. perhaps Vortex generators would get it down sufficiently?
  3. Underwood
    Decided to fly in on the Friday Evening so as to avoid the Chaos of Saturday. Been in many times before and it gets a bit daft on Saturday when there are often up to 10 aircraft in the circuit and overhead with at least 3 often more on final at any one time. As it turned out quite a few had the same Idea and it was already busy friday evening. Met some friends and went down the Pub for some food and drinks so a nice evening. Weather was good which is fairly unusual for the Show its often horrible. Trade presence wasnt huge it hasnt been in recent years, mostly new very expensive 600kg imported stuff that to my mind doesnt really fit in the Microlight Ethos. On a more realistic side I did see someone has started selling the Hummel Ultracruiser as it now fits in the SSDR class over here, kit or full builds available, only the engine choice isnt great either a 1/2 VW which are rubbish from what I've seen of one fitted to a bloke I know's Hummelbird or an unspecified V Twin (probably a B&S derivative) Didnt get inspired to take many pics, but here's my Nynja and the Ultracruiser...
  4. Underwood
    Some might say a couple of points should be deducted for not taking out a few golfers but all in all a Great Job saving that one.👍
  5. Underwood
    Great stuff, heres to having many hours of fun👌
  6. Underwood
    I use one of these with the top page just a blank sheet in the clear pocket that I can write on with a chinagraph pencil. https://pilotshop.nl/contents/en-us/p515_Small_Flip_Chart_Flexi_Kneeboard.html
  7. Underwood
    Blue, any update on your 600KG Nynja?
  8. Underwood
    Yes, I have flown into Cardiff a couple of times and though they do now require a flight plan there are no other requirements I can remember.
  9. Underwood
    Presumably only if it's a XC flight and not just circuits at the airfield you have been training at that didnt previously require one up to that point?
  10. Underwood
    Looking to do a Panel refit in a few months time and been looking at the Kanardia gauges, specifically the ASI, Altmeter and the Horis. Anyone got experience of them?, there are a couple of aircraft at my field whose owners have given positive reviews.
  11. Underwood
    But if the outlet valve fails open then when the mechanical pump does the suck part then it can suck through both the Inlet and outlet, surely this has the potential to reduce overall pressure? https://www.rotax-owner.com/en/rotax-blog/item/77-rotax-912-fuel-pumps
  12. Underwood
    Me too, I'm looking forward to the fly-camp season this year, I havnt done any decent adventures since covid as changes of aircraft, moving house etc have got in the way.
  13. Underwood
    Lol, that's ridiculous and typically American. I think If I woke up and looked down at that ground sheet I'd probably fall over
  14. Underwood
    I'm sure you've checked this already but does the problem track voltage on the bus?, I mean is happening when you have lower voltage?
  15. Underwood
    I honestly get embarrassed by the behaviour of mankind in the 21st century
  16. Underwood
    I have a DC headset that I had converted by ANR Man https://www.anrman.co.uk/ He uses one of the conversion kits. As I never did the conversion myself I can't comment on its fitting but in use I would say the Noise reduction is 80%-90% as good as the Bose A20 headset I also have. It also has the advantage that if the battery runs out then the passive noise reduction on the DC is far better than the Bose A20. When the battery runs out on the A20 its horrible
  17. Underwood
    I've only 1 single hour of tuition in an R22, but was told by the instructor that you have literally a second or so to drop the collective on an engine out in the R22, the rotor inertia being so low. Apparently the R44 is a little more forgiving Coincidently I was watching an R44 doing practice autorotations today at Berrow and it all looked quite relaxed, but of course thats no indication of what was going on in the cockpit
  18. Underwood

    Lynx

    Underwood posted a topic in Military Aviation

    I flew into Berrow today, a grass strip at the southern tip of the Malvern Hills. This was parked up and being readied for flight. an Early Lynx Helicopter one of I believe 2 on the UK Civil register, the Lynx once held the world speed record for helicopters due in large part to its Rotor design with the B.E.R.P. tips a feature much copied since.
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  19. Underwood
    Buying isnt a problem of course. Good luck
  20. Underwood
    Go to the USA? have you thought this through?😁 Re: Hiring a part 103 aircraft I'm doubtful that you'd find anywhere to do that, USA is an immensely litigious society
  21. Underwood
    I'm pretty sure there has been plenty of time and space given to white male able bodied heterosexual aviators so don't feel particularly concerned that those outside that sphere get some recognition In the interests of full disclosure I am a white male heterosexual, though the able bodied bit might be a a stretch these days😁
  22. Underwood
    Maybe the Dynon instrument itself has a problem (vibration/heat buildup?) I'm chasing multiple problems with an MGL unit right now and its a nightmare.
  23. Underwood
    I previously spent a lot of time rebuilding and tuning Motorcycle and mountain bike suspension, I used bottled Nitrogen to recharge units that used the gas instead of a coil spring. Mainly used as its inert so wont encourage internal corrosion Air is about 3/4 Nitrogen anyway, but its the oxygen that causes strife. I've always thought that Oxygen is some sort of dark joke from the big guy, we need it to stay alive but its slowly killing us🤪
  24. Underwood
    Yes, I think these cases had more to do with the large risks involved in particular cases rather than concluding ownership of airspace in any event.
  25. Underwood
    Nice video *though the missing cowl fastener hurts my OCD. I notice it uses the original style undercarriage legs together with the larger tyres, I was told that this wouldnt be allowable in the UK and you would have to fit the 600kg upgrade legs at great cost....Hmm P.S. It also has what looks like a rather large gap seal at the flap/wing junction that I've never seen before, interesting I've only skimmed the vid as I need to go work I'll have a proper look/listen later.
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