Cox Engines Forum
You are not logged in! Please login or register! Guests are limited to posting in the "General Questions (Guest Posting Allowed)" section only. Becoming a member is fast, easy and FREE!


Sound Advice Babe_b10
Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Cox Engine of The Month
November-2019
jmcalata's

"Pee Wee .020 throttled combinated"



PAST WINNERS
CEF Traveling Engine

Win This Engine!
The Traveling Prop
Gallery


Sound Advice Empty
World of Aviation

Sound Advice

Go down

Sound Advice Empty Sound Advice

Post  Scratch049 on Thu Oct 31, 2019 7:26 am

Actually noise advice for those that don't enjoy the music of an ic engine.
Our club has a muffler requirement at our field.   No!
I asked a club officer and received permission to fly my Cox .o49's without said muff.
However larger engines are required to have one.
Although its kind of a sacrilege, I wonder if anyone has tried to fit a muffler to a vintage sparky and go flying?
Scratch...
Scratch049
Scratch049
Bronze Member
Bronze Member

Posts : 41
Join date : 2018-08-17
Age : 81
Location : South Carolina

Back to top Go down

Sound Advice Empty Re: Sound Advice

Post  getback on Thu Oct 31, 2019 9:56 am

Yea Scratch049 do you run fly or have Sparkies ? I have a few that i am wanting to run , but the 70W oil seems to bee a problem , i can get 75W soon as i get to the Motorcycle shop 10- a qt. is good compared to Ebay at 17-18$ to the door Sad
getback
getback
Top Poster
Top Poster

2019 Supporter

Posts : 6339
Join date : 2013-01-18
Age : 62
Location : julian

Back to top Go down

Sound Advice Empty Re: Sound Advice

Post  ticomareado on Thu Oct 31, 2019 10:23 am

An antique sparky and a high nitro dentist drill produce two entirely different sound profiles to casual listeners. The former is not anywhere near as objectionable. In fact there are probably quite a few electric models that produce a more annoying sound than a typical vintage sparky. There would be some exceptions among sparkies such as McCoy speed engines.

I certainly can't imagine mutilating a good sparky specimen to put a muffler on it. Some with exhaust collectors would probably take a strap on w/o too much risk of damage.
ticomareado
ticomareado
Platinum Member
Platinum Member

Posts : 869
Join date : 2013-10-03
Location : NC

Back to top Go down

Sound Advice Empty Re: Sound Advice

Post  Scratch049 on Thu Oct 31, 2019 1:04 pm

getback wrote:do you run fly or have Sparkies ?
Hi Getback.
Don't presently own a sparkie.
Occasionally have run into an example that gets my imagination going.
Hmmm... what could I put that Ohlsson in?
So I guess I'm here to just put out some feelers.
70W oil seems to bee a problem
I understand that some guys are having success with 60 weight. Walmart brand.
Hi  ticomareado;
Never heard a sparky run up close and personal.
ticomareado wrote:I certainly can't imagine mutilating a good sparky specimen to put a muffler on it
Wasn't my idea.
A strap on of some sort is pretty much what I was thinking of.
If it indeed produces a mellow sound, then I probably wouldn't have any trouble running it at the club field.
Worth a shot!
Scratch049
Scratch049
Bronze Member
Bronze Member

Posts : 41
Join date : 2018-08-17
Age : 81
Location : South Carolina

Back to top Go down

Sound Advice Empty Re: Sound Advice

Post  aspeed on Thu Oct 31, 2019 2:17 pm

Gas engines might run a bit hotter than glow. It may be a good idea to open the outlet a bit if there are no decibal limits, just to have one in place.
aspeed
aspeed
Gold Member
Gold Member

Posts : 344
Join date : 2013-01-18
Location : Leamington Ont. Can.

Back to top Go down

Sound Advice Empty Re: Sound Advice

Post  Scratch049 on Thu Oct 31, 2019 4:15 pm

Good information.
Will keep it in mind.
Thank you Aspeed.
Scratch...
Scratch049
Scratch049
Bronze Member
Bronze Member

Posts : 41
Join date : 2018-08-17
Age : 81
Location : South Carolina

Back to top Go down

Sound Advice Empty Re: Sound Advice

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum