pete taylor Posted October 24, 2013 Share Posted October 24, 2013 I'm not sure that vintage is the right place for this, but can't think where else it should go. Just spotted this from HK...should raise a few eyebrows! Quote Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted October 24, 2013 Share Posted October 24, 2013 I like the last item in the required items "hearing defenders"If the noise of the control line pulse jets at the nationals are anything to go by then these are a must. I remember watching the RC pulse jets at Woodvale many years ago. Quote Link to comment Share on other sites More sharing options...
Simon Chambers Posted October 24, 2013 Share Posted October 24, 2013 Wow I wasn't expecting HobbyKing to stock one of these! PulseJets are temperamental at the best of times. It'll be interesting to see how well (or if they) run. Building a pulsejet has always been on my list of project todos... Si. Quote Link to comment Share on other sites More sharing options...
ken anderson. Posted October 24, 2013 Share Posted October 24, 2013 yes ........and anyone who buys/starts one up will probably get any model flying banned in a 5 mile radius........maybe it would make a good paper weight/conversation piece..... ken Anderson ne..1 ....... banned dept. Quote Link to comment Share on other sites More sharing options...
Martian Posted October 24, 2013 Share Posted October 24, 2013 weapon of mass destruction ,it would be far to fast for me it would be a case of start- launch- where is it Quote Link to comment Share on other sites More sharing options...
GrahamC Posted October 24, 2013 Share Posted October 24, 2013 Oh dear.... I predict some lost flying sites it too many of those make their way to the UK! Quote Link to comment Share on other sites More sharing options...
malcolm woodcock 1 Posted October 24, 2013 Share Posted October 24, 2013 Oh boy, they'd really love me down my local park (The Flatts) with one of those. Quote Link to comment Share on other sites More sharing options...
Steve Hargreaves - Moderator Posted October 24, 2013 Share Posted October 24, 2013 Scale model of a V1 anyone??? BEBs Tiffie could chase it...... Quote Link to comment Share on other sites More sharing options...
Braddock, VC Posted October 24, 2013 Share Posted October 24, 2013 There used to be a lovely show at plumpton park racecourse, I even managed to tolerate db sound. They lost it, a dutch guy used to fly a pulsejet and despite being briefed not to fly over a specific house managed to do it on virtually every visit I made there. Don't think db sound helped by broadcasting he shouldn't be flying there or words to that effect. Show closed down and, unfortunately, damned right too. Nevertheless it was a hell of a spectacle. Don't know where the temperamental sprang from, the four or so that I saw were anything but, just one moving part. Can't get much simpler than that. (actually it can, there are valveless pulse jets but they are a bit awkward to install in aircraft) Quote Link to comment Share on other sites More sharing options...
David Tweddle Posted October 24, 2013 Share Posted October 24, 2013 Posted by Braddock, VC on 24/10/2013 21:57:10: There used to be a lovely show at plumpton park racecourse, I even managed to tolerate db sound. They lost it, a dutch guy used to fly a pulsejet and despite being briefed not to fly over a specific house managed to do it on virtually every visit I made there. Don't think db sound helped by broadcasting he shouldn't be flying there or words to that effect. Show closed down and, unfortunately, damned right too. Ditto Plumpton the next year @ Sandown I saw Hanno flying it again. Bit more room there though; Boy what a sound. So BEB will you chase our VII's with Rockets or bombs or Cheat ... David Quote Link to comment Share on other sites More sharing options...
Biggles' Elder Brother - Moderator Posted October 24, 2013 Share Posted October 24, 2013 I'll chase them with an injunction! Crazy idea. I mean, yes they are spectacular and exciting. But so are high explosives! They are far too fast and far too dangerous for any one but the very very competant - and I don't think there are many of those around. In shows is one thing, I too remember the Dutch guys with their Pulse Jst at Woodvale - which didn't end happily if I recall correctly. They have no place on the RC club scene in my view. We wouldn't allow it at our club - TBH we simply couldn't allow it - well over the maximum permitted sound levels and too damn dangerous! BEB Quote Link to comment Share on other sites More sharing options...
Andrew Russell 2 Posted October 24, 2013 Share Posted October 24, 2013 I think we are all to worried about sound levels and safety although i am biased as i have my own microlight strip to play at. I'll be buying one in the near future Quote Link to comment Share on other sites More sharing options...
Plummet Posted October 24, 2013 Share Posted October 24, 2013 Ess Hache One Tea How many pulse jets to power a microlight? Could you start them all before you went deaf? Plummet Quote Link to comment Share on other sites More sharing options...
Biggles' Elder Brother - Moderator Posted October 25, 2013 Share Posted October 25, 2013 Andrew, I'm afraid your comment would led me to believe you have never seen a pulse jet in operation! 1. Do you have the slightest idea just how loud these things are? Think of the loudest engine you have ever heard - its a whisper compared to one of these. There is an event held at Macrihanish, I think annually, where Pulse Jets are flown - they can be heard 8 miles away! 3. There is a raft of conditions you need to satisfy - including compulsary annual noise monitoring. Are you equipped for that? 4. Are you aware how dangerous they are! If the "fires go out" (and believe me that happens to best of Pulse Jet Jockeys so it will happen to you) the fuel doesn't stop and you have a large quantity of petrol flowing over a red hot motor - woof! 5. Finally and most importantly in my opinion, are you aware that they can only be flown untethered in the UK from a site with a special excemption certificate from the CAA? And, trust me, you wouldn't get one! Flying them off a tether without this excemption certificate is illegal - you would be liable for prosecution, so could the landowner be if s/he had given his/her permission. Oh - and case you're thinking "well they've got to catch me first" - well think again. The noise alone of that thing will attract the boys in blue from miles around. Dream on,... BEB Edited By Biggles' Elder Brother - Moderator on 25/10/2013 00:14:55 Quote Link to comment Share on other sites More sharing options...
David Tweddle Posted October 25, 2013 Share Posted October 25, 2013 I for one am not barking... Posted by Biggles' Elder Brother - Moderator on 25/10/2013 00:12:52: The fuel doesn't stop and you have a large quantity of petrol flowing over a red hot motor - woof! Dream on,... BEB But what a paper weight. David Quote Link to comment Share on other sites More sharing options...
Braddock, VC Posted October 25, 2013 Share Posted October 25, 2013 BEB I didn't realise there were so many restrictions, but it looks like c/l is ok. My lasting impression of the plumpton one was his finale, after two or three mins of zapping around he went vertical and this plane disappeared upstairs and I mean disappeared then suddenly the noise would stop and you could imagine the mind set of all those folk in london when v1s were attacking, the silence was deafening. Definitely a spectacle but not for the pc of today. Quote Link to comment Share on other sites More sharing options...
Andy Green Posted October 25, 2013 Share Posted October 25, 2013 Just hang it on the wall underheath that other thing that seemed a good idea at the time - The yard of ale. Andy Quote Link to comment Share on other sites More sharing options...
ken anderson. Posted October 25, 2013 Share Posted October 25, 2013 here is one of the many vids off u-tube...to illustrate the point of one of these motors in action........impressive but.....noisy..... ken Anderson ne..1..... noise dept... Edited By ken anderson. on 25/10/2013 10:45:04 Quote Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted October 25, 2013 Share Posted October 25, 2013 I'm sure the US NSA will also be monitoring the purchase of these, they might even come with a free holiday in Guantanamo Quote Link to comment Share on other sites More sharing options...
Terry Walters Posted October 26, 2013 Share Posted October 26, 2013 Pete B and me saw two pulse jets being flown at a local model show near the Dordogne. The sound was horrific. I had now idea how loud they were - certainly louder than a F1 car at full chat! You do not want the problem believe me. Were they exciting? - yes! Were they fast? - unbelievably so! Were they dangerous? Yes! Only the very experienced could cope with the speed and orientation. The one that got into trouble was rapidly ditched into the adjacent field and resulted in a fire ball that set the field alight requiring valiant efforts by the stewards to control and extinguish it. As a club modeller this is bad news all round. Terry Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted October 26, 2013 Share Posted October 26, 2013 Ah yes. Even on control line with its lowerr height and thus smaller footprint they can be heard miles away. Instant flying field loss. They used to glow red hot withing seconds of starting and if you didn't get them in the air fast enough they could be ruined. I know that they were totally banned from all RAF stations. Almost certainly they still are. I think I will frighten our club sec out of his mind by just hinting at buying one Edited By Peter Miller on 26/10/2013 08:41:01 Quote Link to comment Share on other sites More sharing options...
Phil 9 Posted October 26, 2013 Share Posted October 26, 2013 Posted by GrahamC on 24/10/2013 21:08:06: Oh dear.... I predict some lost flying sites it too many of those make their way to the UK! ban them Quote Link to comment Share on other sites More sharing options...
Paul Marsh Posted October 26, 2013 Share Posted October 26, 2013 I want one. Hope Rapid RC have them, Want to run it in the back garden!!! Quote Link to comment Share on other sites More sharing options...
GrahamC Posted October 26, 2013 Share Posted October 26, 2013 Posted by Phil 9 on 26/10/2013 09:11:57: Posted by GrahamC on 24/10/2013 21:08:06: Oh dear.... I predict some lost flying sites it too many of those make their way to the UK! ban them Well they are effectively banned for RC use anyway as you need explicit permission from the CAA, which won't be forthcoming. The problem is the people who don't know they are banned... And the irresponsible idiots who think the rules are boring. Just read through the discussion at HK for proof that they exist. And if you have never heard one in real life... the Youtube videos really give you no idea how loud they are.... Quote Link to comment Share on other sites More sharing options...
Pete B Posted October 26, 2013 Share Posted October 26, 2013 I really don't see why folk are getting so agitated about this - there is clearly an implied criticism of HK in many of these posts. Hobbyking is a global company and the UK market is just a small part of their total sales. They sell a number of other products which cannot legally be used in the UK, such as FPV modules etc, so why the histrionics about one more? There are many other parts of the world where flying a pulse jet will create no noise problem whatsoever and I think too many here are adopting a 'dog in the manger' attitude......if we can't have one, no-one else should, either They are currently only available from the Global warehouse. If they stock them in the UK, then there may be some grounds to question the decision, although as far as I am aware it is not yet illegal to possess one in the UK! Aren't we just showing a bit of the green-eyed monster about the opportunity being presented to other, non-UK, modellers? Pete Quote Link to comment Share on other sites More sharing options...
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