.. Posted May 12, 2015 Share Posted May 12, 2015 Posted by Gordon Tarling on 12/05/2015 12:35:54: Justin - all the sound systems use an input from the throttle channel, which provides increasing rpm sound with increased throttle position. There's also startup and shutdown sounds, with things like machine gun sounds and lights being optional extras. Sounds and looks great on my Sopwith Pup! Good stuff, still a nice little fourstroker for me tho. Quote Link to comment Share on other sites More sharing options...
Dave Hopkin Posted May 12, 2015 Share Posted May 12, 2015 All the sound systems I have seen use a downloaded sound replicating a particular type of engine, plus start up and close down noises - a wide range of differing engine sounds are available to suit the subject There is one breed (and I cant find it now! but its fitted to the electrifiers spitfire that doesnt use a traditional speaker but uses actuators that then use the airframe as a sound box Quote Link to comment Share on other sites More sharing options...
Allan Bennett Posted May 12, 2015 Share Posted May 12, 2015 Posted by Dave Hopkin on 12/05/2015 13:10:56: ... There is one breed (and I cant find it now! but its fitted to the electrifiers spitfire that doesnt use a traditional speaker but uses actuators that then use the airframe as a sound box The speakers are the heaviest bit of a sound system, but nowadays transducers, which are lighter, can be substituted for regular speaker with any sound system I think, provided you select the correct resistance. Certainly the Benedini system I use lists transducers on its web page, though I've only used the conventional heavy 4" speakers to date. MrRCSound also promotes transducers. Quote Link to comment Share on other sites More sharing options...
cymaz Posted May 12, 2015 Share Posted May 12, 2015 Though not having any electric planes THIS might be of interest Quote Link to comment Share on other sites More sharing options...
Bustergrunt Posted May 14, 2015 Author Share Posted May 14, 2015 Well chaps after all your input (much appreciated) I have decided to stick with I/c...so will be acquiring a suitable engine shortly....although OS48's seem a bit thin on the ground these days Quote Link to comment Share on other sites More sharing options...
jrman Posted May 14, 2015 Share Posted May 14, 2015 " I have decided to stick with I/c..." There speaks a wise man who hasn't been tempted to the dark side. Quote Link to comment Share on other sites More sharing options...
Jon H Posted May 14, 2015 Share Posted May 14, 2015 You wont be disappointed! if you don't already have a os48 then grab a 52 from os/asp/saito etc. A saito 45 would also be enough for toodling about WWI style And, just for your amusement here is my saito 45 powered Nieuport 17. Plenty of oomph. **LINK** Apologies for all the chat and the screaming two strokes in the pits Quote Link to comment Share on other sites More sharing options...
Dave Drew Posted June 11, 2015 Share Posted June 11, 2015 I've recently acquired a flair SE5a superbly built but in need of a bit of tlc. Mainly replacing the worn out AXi outrunner. Soon dropped a BL28 20 in and have evened out the difference in weight between old and new motors by adding 32g of lead. Would appreciate a steer on correct c of g as my gut instinct is that the beastie is still tail heavy Quote Link to comment Share on other sites More sharing options...
Trevor Crook Posted June 11, 2015 Share Posted June 11, 2015 Am I the only one to have had glow and electric versions? 20-odd years ago I had one which flew well on an O.S 40 Surpass. Now I am all electric I have another that flies at least as well on an electric setup - 3s 3000, 900kv motor, 11x7 prop giving about 400W flat out. I much prefer operating electric models, and they don"t deteriorate like I/C ones tend to. However, the SE5 is the one model I fly where I sometimes miss the glow sound and thin smoke trail against a blue sky. Quote Link to comment Share on other sites More sharing options...
Trevor Crook Posted June 11, 2015 Share Posted June 11, 2015 Oh, here's the "current" one! Quote Link to comment Share on other sites More sharing options...
Allan Bennett Posted June 12, 2015 Share Posted June 12, 2015 Posted by Trevor Crook on 11/06/2015 21:19:26: Am I the only one to have had glow and electric versions? 20-odd years ago I had one which flew well on an O.S 40 Surpass. Now I am all electric I have another that flies at least as well on an electric setup - .... No, see my earlier post My electric one is my original glow one from about 25 years ago, and performance (subjectively) is even better with electric power than it was with glow. Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted June 12, 2015 Share Posted June 12, 2015 Sorry to butt in guys, and i am in no way going to suggest one way or another, but the transducers, according to Thomas (Benedini) only really seem to work well with foam models, Not so good on traditional balsa models. The speaker is very heavy compared to the model weight and you really need a bigger model to "lose" the weight in my oppinion. Cheers Danny Quote Link to comment Share on other sites More sharing options...
GrahamWh Posted June 12, 2015 Share Posted June 12, 2015 Perhaps the speaker manufacturers should catch up with the rest of the world and move on to the modern sort of magnets, then the speakers could be smaller. Edited By GrahamWh on 12/06/2015 17:11:35 Quote Link to comment Share on other sites More sharing options...
PatMc Posted June 12, 2015 Share Posted June 12, 2015 Posted by GrahamWh on 12/06/2015 17:10:58: Perhaps the speaker manufacturers should catch up with the rest of the world and move on to the modern sort of magnets, then the speakers could be smaller. Edited By GrahamWh on 12/06/2015 17:11:35 They already do make speakers with rare earth magnets but I don't think they're smaller, just lighter. Which isn't necessarily an advantage in most applications. Quote Link to comment Share on other sites More sharing options...
Allan Bennett Posted June 12, 2015 Share Posted June 12, 2015 Posted by Danny Fenton on 12/06/2015 09:10:14: Sorry to butt in guys, and i am in no way going to suggest one way or another, but the transducers, according to Thomas (Benedini) only really seem to work well with foam models, Not so good on traditional balsa models. . . . I haven't flown my SE5A with transducers yet, but my first impression testing in the garage is that there's less bass than with traditional speakers -- difficult to judge, I suppose, because my Magnatilla with conventional speakers is using a completely different sound file. That's with the transducers mounted on a bit of liteply infill glued onto the balsa side skin between the original liteply framing. Before I bought them I found this article explaining how to mount and what types of materials. My SE5A's covering is getting a bit shoddy, so when I recover it this winter I'm considering whether I should replace the balsa skin where the transducers are with one of the materials in the "excellent" list -- maybe a sheet of aluminium, or corrugated "signboard" material. Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted June 12, 2015 Share Posted June 12, 2015 Will be good to hear how you get on Allan CheersDanny Quote Link to comment Share on other sites More sharing options...
The real Ron Truth Posted June 14, 2015 Share Posted June 14, 2015 I've heard the sound systems in action and imho the overall affect is actually quite average and only seems to be worth it if the motor isn't one that has a high pitch noise. Given the weight and cost, id say either go for a nice 52 fs or plain electric, don't faff in-between. If its sound you want, go IC and remove the exhaust expansion muffler. If you do go IC, i also recommend sourcing the 90 degree muffler knuckles they sell to try and keep the exhaust in the cowl. don't be tempted by flexy exhaust pipe. Perforates and stress cracks very quickly if bent at an angle. Quote Link to comment Share on other sites More sharing options...
Former Member Posted June 14, 2015 Share Posted June 14, 2015 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Allan Bennett Posted June 14, 2015 Share Posted June 14, 2015 It's not just "sound" though, it's the right sound. And removing the muffler does nothing other than make it too noisy! I agree about the flexible pipes though. I've only ever used them with 4-strokes, and they were forever failing at the bends or where the screw connectors attached. Quote Link to comment Share on other sites More sharing options...
anthony szostak 1 Posted July 9, 2015 Share Posted July 9, 2015 If the real se5a had an electric motor to power it. Then I could justify an electric motor in a model for me. What a person uses for power is a personal choice. But I do not see why certain modellers should try and force their ideas on other modellers. It is time all aspects of modelling should be respected and not knocked. I wonder if the person who doesn't like smelly oily things, when they were having the sex thing. Quote Link to comment Share on other sites More sharing options...
extra slim Posted July 9, 2015 Share Posted July 9, 2015 what you do behind closed doors is your business Anthony...TOO MUCH INFORMATION.. visions of a can of old diesel next to your bed.....I've tried washing my eyes in petrol but the vision is still there. Edited By extra slim on 09/07/2015 15:43:59 Quote Link to comment Share on other sites More sharing options...
Dave Hopkin Posted July 9, 2015 Share Posted July 9, 2015 Posted by anthony szostak 1 on 09/07/2015 14:50:44: If the real se5a had an electric motor to power it. Then I could justify an electric motor in a model for me. What a person uses for power is a personal choice. But I do not see why certain modellers should try and force their ideas on other modellers. It is time all aspects of modelling should be respected and not knocked. I wonder if the person who doesn't like smelly oily things, when they were having the sex thing. No-one tried to force anything on anyone! and refering to them as dirty oily smelly things was very much toungue in cheek..... the origninal question was asking what we thought should power the plane, so we gave our opinions/suggestions - if he had not of asked we would not have suggested alternatives... As for anyones sex life/preferences that has no place on this forum and none of your business anyway Quote Link to comment Share on other sites More sharing options...
roger graves Posted July 9, 2015 Share Posted July 9, 2015 On the Baronette I used 10mm copper micro bore pipe to run the exhaust from the bottom of the cowl, with an upright engine and exhaust I would have thought silver soldering this pipe would be easy. I found that the supplied exhaust nut would cut a usable thread into the pipe. Quote Link to comment Share on other sites More sharing options...
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