BrendAn Posted April 30, 2023 Share Posted April 30, 2023 (edited) Could be interesting. Edited April 30, 2023 by BrendAn Link to comment Share on other sites More sharing options...
old man emu Posted April 30, 2023 Share Posted April 30, 2023 If it stops, the hydrogen in the fuel tank will keep you up. 1 Link to comment Share on other sites More sharing options...
spacesailor Posted April 30, 2023 Share Posted April 30, 2023 But we're is the power take-off. spacesailor Link to comment Share on other sites More sharing options...
facthunter Posted April 30, 2023 Share Posted April 30, 2023 You ask a good question there and where are the mounts needed by that much torque, or is it TALK? Nev 1 Link to comment Share on other sites More sharing options...
BrendAn Posted April 30, 2023 Author Share Posted April 30, 2023 The finished prototype is supposed to coming out in the second quarter of this year. Despite all the negativity to anything new on this forum nothing new happens without these experiments. Something will replace the piston engine eventually.whether it is something like this or the rotary variety in my other post. Who knows. Link to comment Share on other sites More sharing options...
Area-51 Posted April 30, 2023 Share Posted April 30, 2023 Piston engine is here for good, humans are no longer able to advance further unless Elon provides required Capex... Still waiting for previously promised Gravitron to materialise since childhood days... still waiting... no longer holding breath... 1 1 Link to comment Share on other sites More sharing options...
BrendAn Posted April 30, 2023 Author Share Posted April 30, 2023 I thought the Thunderbirds nuclear powered airliner would catch on. Never did though. 1 Link to comment Share on other sites More sharing options...
facthunter Posted April 30, 2023 Share Posted April 30, 2023 Pointing out obvious shortcomings is NOT Negativity. EVEN "Normal" engines have a short list of successes in Aeroplanes. I'm PRO turbines and always have been and also electric and in a limited way for Wankel and 2 strokes. I think most Pistons are sitting there ready for bits to come flying out of their innards and I've experienced that with some that HAD P&W on the front of the engines. I'd be quite happy to have a Gipsy 1-C up front and pull the heads off every 400 Hours if that's all the problem you had. . I'd be happy to fly a 3 cyl Anzani but I wouldn't fly it over a city or heavily treed Mountain slopes. ALL engines can fail.. Fly accordingly. Nev 2 Link to comment Share on other sites More sharing options...
Area-51 Posted April 30, 2023 Share Posted April 30, 2023 The water would likely be spent hydrogen exhaust escaping as there is no sealing 1 Link to comment Share on other sites More sharing options...
Area-51 Posted April 30, 2023 Share Posted April 30, 2023 28 minutes ago, BrendAn said: I thought the Thunderbirds nuclear powered airliner would catch on. Never did though. Micro fission nuclear closed loop steam turbine is the best option; Thunderbirds are go 👍 2 Link to comment Share on other sites More sharing options...
onetrack Posted April 30, 2023 Share Posted April 30, 2023 The Omega is 99% hypermarketing and glitzy video formatting and 1% practical, useful design. It will "fall by the wayside" along with all the others like it, who all promised breathless gains in engine design. 1 Link to comment Share on other sites More sharing options...
facthunter Posted April 30, 2023 Share Posted April 30, 2023 (edited) I can get a two stroke to RUN without piston rings but it doesn't mean anything. IF you've been mucking around with engines all your Life (I don't recommend it) but you get a fair idea of what good design is and what Isn't.. There are faults in an RR Merlin and most other engines and most gearboxes. My initial Interest in flying was initially the love of the powerplants but that became a love/hate relationship and I got more interested in Piloting and Safety Nev Edited April 30, 2023 by facthunter typo 1 1 Link to comment Share on other sites More sharing options...
Area-51 Posted April 30, 2023 Share Posted April 30, 2023 (edited) In the mid 60's a couple of brothers in Newcastle i think built a Daimler SP250 drag car that ran without any inlet or exhaust valves and reliably produced 600 odd hp on the dyno at 12500rpm.. it was documented in Sportscar magazine of that era... it must of been running as a 2 stroke... my father for some reason threw the entire collection in the bin just before he passed away because we got no response when advertised for sale... the garbage truck collected it all the day before i turned up to box them for storage... 🤦🏻♂️🤷🏼♂️😂😂😂🤦🏻♂️ Edited April 30, 2023 by Area-51 1 Link to comment Share on other sites More sharing options...
spacesailor Posted April 30, 2023 Share Posted April 30, 2023 And , the man who, turned a Holden motor into a ' compressed air ' motor . I think it was registered. spacesailor Link to comment Share on other sites More sharing options...
spacesailor Posted April 30, 2023 Share Posted April 30, 2023 And , the man who, turned a Holden motor into a ' compressed air ' motor . I think it was registered. spacesailor Link to comment Share on other sites More sharing options...
BrendAn Posted April 30, 2023 Author Share Posted April 30, 2023 3 hours ago, facthunter said: Pointing out obvious shortcomings is NOT Negativity. EVEN "Normal" engines have a short list of successes in Aeroplanes. I'm PRO turbines and always have been and also electric and in a limited way for Wankel and 2 strokes. I think most Pistons are sitting there ready for bits to come flying out of their innards and I've experienced that with some that HAD P&W on the front of the engines. I'd be quite happy to have a Gipsy 1-C up front and pull the heads off every 400 Hours if that's all the problem you had. . I'd be happy to fly a 3 cyl Anzani but I wouldn't fly it over a city or heavily treed Mountain slopes. ALL engines can fail.. Fly accordingly. Nev I think electric could be the answer with better charging and batteries. Some nuclear power would be good for Australia too. And hydrogen Link to comment Share on other sites More sharing options...
facthunter Posted April 30, 2023 Share Posted April 30, 2023 Piston engines have character and sounds that some of us real petrol heads like the challenge of. IF they need a bit of attention now and again. just give the motor a girls name and do what you have to to make it run happily. Nev. 3 Link to comment Share on other sites More sharing options...
BrendAn Posted April 30, 2023 Author Share Posted April 30, 2023 33 minutes ago, facthunter said: Piston engines have character and sounds that some of us real petrol heads like the challenge of. IF they need a bit of attention now and again. just give the motor a girls name and do what you have to to make it run happily. Nev. I have played with engines all my life too but I am open to new designs . One of them will succeed eventually. I have a vf ss and have owned gt Falcons among others. But my favourite exhaust note is by far a 2 stroke GM diesel. I fitted a 453 turbo in one of my boats and it sounded fantastic. All the old blokes would stop and listen to it . Link to comment Share on other sites More sharing options...
BrendAn Posted April 30, 2023 Author Share Posted April 30, 2023 (edited) 4 hours ago, Area-51 said: In the mid 60's a couple of brothers in Newcastle i think built a Daimler SP250 drag car that ran without any inlet or exhaust valves and reliably produced 600 odd hp on the dyno at 12500rpm.. it was documented in Sportscar magazine of that era... it must of been running as a 2 stroke... my father for some reason threw the entire collection in the bin just before he passed away because we got no response when advertised for sale... the garbage truck collected it all the day before i turned up to box them for storage... 🤦🏻♂️🤷🏼♂️😂😂😂🤦🏻♂️ There was a valveless Holden grey motor made in sa. It had a chain driven overhead shaft with flats cut in it . I guess like a sleeve valve. It had a rootes blower and made 300 HP on the dyno before the block split. Edited April 30, 2023 by BrendAn Link to comment Share on other sites More sharing options...
bushcaddy105 Posted April 30, 2023 Share Posted April 30, 2023 4 hours ago, Area-51 said: In the mid 60's a couple of brothers in Newcastle i think built a Daimler SP250 drag car that ran without any inlet or exhaust valves In Adelaide in the 1970's I met a guy who had built rotary valve heads for Holden grey motors. They ran in speedway cars at Rowley Park Link to comment Share on other sites More sharing options...
BrendAn Posted April 30, 2023 Author Share Posted April 30, 2023 Just now, bushcaddy105 said: In Adelaide in the 1970's I met a guy who had built rotary valve heads for Holden grey motors. They ran in speedway cars at Rowley Park Would that be what I am thinking of. The one I read about was in Adelaide. Link to comment Share on other sites More sharing options...
turboplanner Posted April 30, 2023 Share Posted April 30, 2023 Harold Clisby? Link to comment Share on other sites More sharing options...
turboplanner Posted April 30, 2023 Share Posted April 30, 2023 7 hours ago, BrendAn said: The finished prototype is supposed to coming out in the second quarter of this year. Despite all the negativity to anything new on this forum nothing new happens without these experiments. Something will replace the piston engine eventually.whether it is something like this or the rotary variety in my other post. Who knows. What you're reading is not negativity, it's people explaining practical defects in the design, and usually people who work in an Industry or actually build engines, and can instantly see what's wrong. For example it's very easy to understand why turbines are not a match for cars. 2 Link to comment Share on other sites More sharing options...
sfGnome Posted April 30, 2023 Share Posted April 30, 2023 It’s interesting watching this discussion. For years I worked for a company that was trying to do something very commonplace in a completely new, vastly better way - something that all the large established companies had spent literally billions trying to achieve (and failed). The fun part was when we first put a demo video on line, reading all the comments from the experts about how it had to be fake because we were a little, unknown company and couldn’t possibly have done it, and if it was true, then it would never get into production. Guess what? We did, and it did. Just occasionally - though not very often - the online experts are wrong. 1 Link to comment Share on other sites More sharing options...
Area-51 Posted April 30, 2023 Share Posted April 30, 2023 5 hours ago, BrendAn said: There was a valveless Holden grey motor made in sa. It had a chain driven overhead shaft with flats cut in it . I guess like a sleeve valve. It had a rootes blower and made 300 HP on the dyno before the block split. I remember more now, the daimler motor was fuel injected but normally aspirated... Link to comment Share on other sites More sharing options...
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