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-   -   brison 2.4ci/39cc (https://www.rcuniverse.com/forum/3d-flying-82/1663637-brison-2-4ci-39cc.html)

Kenny R 03-26-2004 10:04 PM

brison 2.4ci/39cc
 
Anyone 3D with this engine? If so I would appreciate any comments you would like to give. I'm thinking of building an 80" profile around this engine Target weight would be 11-12 lbs, what do you think?

Thanks,
Kenny

3D ONdaEDGE 03-26-2004 10:42 PM

RE: brison 2.4ci/39cc
 
I think that you should do great with that engine. It is a pretty good all around engine that doesnt weigh too much. You might look at the aeroworks 80 profile or Ohio model planes has an 80 inch edge profile kit and an arf too i think.

Superfast 03-27-2004 09:42 AM

RE: brison 2.4ci/39cc
 
The Brison 2.4 is really a strong running engine, I have had no problems at all with them. I just installed a new Brison 2.4 in an 80" D&L Edge 540 I built this winter. The overall weight ready to fly came in at 12lbs 4oz, the Brison pulls the plane unlimited and will torque roll the plane with ease. I have seen a few other 2.4 at my home field and they can handle a plane with a weight of about 14 - 14 1/2 lbs for unlimited vertical with the right prop, over about 14 1/2 you will lose a little. Keep the plane light you you will have a ton of power to spare.

[link=http://www.scottsrc.com/files/dledge36.jpg]80" D&L Edge 540[/link]

Scott

Geistware 03-27-2004 01:37 PM

RE: brison 2.4ci/39cc
 
THis engien will swing a 20x8 propeller with no problem so you should be able to 3D like crazy.

Kenny R 03-28-2004 08:32 AM

RE: brison 2.4ci/39cc
 
Thanks for the replies! I appreciate all of them and any more that you might have.

Scott, what size and brand prop are you using?

Thanks,
Kenny

fly3dnyc 03-28-2004 09:27 PM

RE: brison 2.4ci/39cc
 
1 Attachment(s)
I few of the guys at the field I fly at have this engine and it is very reliable and pulls a 12-14 lb. plane like crazy. I have a BME 44 on the AW profile turning a BME 21 x 8 prop at 6800 rpm and the plane is awesome. First flight yesterday and a bunch more today. Only thing I didn't like about the Brison is that you have to do the mods to mount the engine as for the BME it mounts on rails.

Geistware 03-29-2004 06:09 AM

RE: brison 2.4ci/39cc
 
Yea, Brison mounts like most of the big gassers, the BME mounts like a glow engine.

Superfast 03-29-2004 07:01 AM

RE: brison 2.4ci/39cc
 
As far as the prop, I am using a Zinger Pro 20x8. I an currently turning it at 7400 rpm. I can probably get it to increase a little once the engine breaks in some more. I now have about 8 flights on the new engine and haven't had to touch the carb needles yet ! Once I get about 2 gallons through it I will give it a little tweek and see if the rpms increase.

Scott

ddavis 04-12-2004 09:17 PM

RE: brison 2.4ci/39cc
 
I am flying a Morris Hobbies Giant Sudokohi, which is my favorite plane. Weight is 15lbs on inacurate bathroom scales, 1800sq + inches. The 2.4 is just now broken in. Running a 18x12 and sometimes a 20x10 Zingers with no problems. The plane floats in at a walk speed for landings with flaporons. I cant say enough good things about Brison engines as I have 4. 2.4 two 3.2s and a 4.2.

Geistware 04-13-2004 05:26 AM

RE: brison 2.4ci/39cc
 
If you switch to a 20x8 APC, NX or Menz propeller you will see a great improvement.



ORIGINAL: Superfast

As far as the prop, I am using a Zinger Pro 20x8. I an currently turning it at 7400 rpm. I can probably get it to increase a little once the engine breaks in some more. I now have about 8 flights on the new engine and haven't had to touch the carb needles yet ! Once I get about 2 gallons through it I will give it a little tweek and see if the rpms increase.

Scott


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