Twinstar that sounds like twin Merlins?

[Steve W-O]

The only thing that I would like on electric planes is some sound.

 

 

Not the tortured bee sound of a two stoke glow engine, but a proper plane sound.

 

 

I looked at this last summer, and found that available systems were stupidly expensive, only played one engine speed, and only one volume.

 

I want something that starts with an idle sound at low throttle, with revs increasing, and volume increasing as the throttle is opened.

 

I'd even like the out of sync beat note of a twin.

 

 

Over the next few months, going to have a go at designing and building something that will do what I want, at a reasonable price. (and hopefully not more than 40g excluding the speaker)

[Martin Harris - Moderator]

Assuming (a) that you succeed and (b) that you aren't planning to go into commercial production, wouldn't it be nice if RCM&E picked this up as a project?

[Danny Fenton]

Hi Steve, the Benedini system starts and runs up to idle at a flick of the switch, the rpm is then increased with the throttle stick postion. If you want the beat of a twin then fit two as John Ranson has done in his enlarged Brian Taylor Mosquito (93")

 

John has 4 large speakers in that. he has said it might be at Bickley in a months time those that are going.

 

John Ranson Interview

 

Cheers

Danny

Edited By Danny Fenton on 20/04/2011 16:07:15

[Phil 9]

HK version

[Steve W-O]

They are nice (both the same) but the price is high for a bit of fun.

 

Prepared to make quite a few compromises for a better price.

 

I imagine that the amount spent on some planes dwarfs the cost of the sound unit, and for that use the cost would probably not be a factor.

[andy watson]

I have seen the Bendini system used in a small (60") spitfire.

 

Worked really well.

[Lima Hotel Foxtrot]

Tamiya do a system for tanks that does what you ask. Maybe adapt that?

[Former Member]

[This posting has been removed]

[Steve W-O]

I have already bought the "sound module" and will building a prototype control circuit in the next couple of weeks, the final control circuit will use SMDs and be a lot smaller.

 

If it doesn't work, I'll look what is available to buy

[Doug Ireland]

Posted by Eric Bray on 22/04/2011 22:30:26:
Timbo was playing with a sound system in a model, but I cannot recall which one. I think you will find the thread in 'Electric Flight', somewhere.

I think it was his big Camel Eric. Not everyone's cup of tea but quite impressive nonetheless.

[Tim Mackey]

It was indeed, and the system is by Model Solutions Of Canada.

 

[Former Member]

[This posting has been removed]