Brison 2.4 on GSP Yak-54 ?
08-30-2004 | 04:09 AM
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From: Seoul, KOREA, REPUBLIC OF (KOR)
Brison 2.4 on GSP Yak-54 ?
I recently bought a Brison 2.4. I was going to put that engine on the 80" Top Model 3D Cap, but decided not to after I read several threads; not enough power for 3D. With the 72" GSP Yak-54, which I think is a nice plane, I have the opposite dilemma. Won't it be too much? Any experience and suggestion would be appreciated.
Hachul
Hachul
08-30-2004 | 06:26 AM
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From: Carrollton,
TX
RE: Brison 2.4 on GSP Yak-54 ?
Hachul,
The 2.4 is a good choice but watch your weight. I have a 2.4 I am installing it in a 28% Cap21 96" wingspan 14lbs. a 3.2 would make the plane unnecessarily nose heavy at over 17lbs. A 2.4 may not be enough to 3D this plane but a Cap21 is not really a 3D plane anyway. If you look at RC Show Case web site they have a spreadsheet
that shows their recommendations for their engines. A 2.4 is about 40cc and it pulls the same if not a little more than a zdz 40RV. According to RC show Case a 40cc engine will pull 20lbs max, 14-16 sport and less than 14 for 3D.
I've read where allot of people were installing a 40cc gas engine in the GP Giles 202. (72" wing span) Some may like this set up some say it turns the plane into a bomb. (to nose heavy) I think the most perfect plane for a Brison 2.4 is a wide body 76-78" aerobat plane. Kangke USA Texas Hurricane is a very good plane for the 2.4. The old Yellow A/C Cap10b is another. Something that can handle the width of the engine (Walbro carb and slimline muffler) without carving up the cowling too much.
The GSP Yak may be a little small for the 2.4 but again watch your weight. Build it like a strong .60 and not like a small big bird. In other words watch your battery weight, use one strong digital servo instead of multi servos.
If you do that you should be okay.
Good Luck
jds
The 2.4 is a good choice but watch your weight. I have a 2.4 I am installing it in a 28% Cap21 96" wingspan 14lbs. a 3.2 would make the plane unnecessarily nose heavy at over 17lbs. A 2.4 may not be enough to 3D this plane but a Cap21 is not really a 3D plane anyway. If you look at RC Show Case web site they have a spreadsheet
that shows their recommendations for their engines. A 2.4 is about 40cc and it pulls the same if not a little more than a zdz 40RV. According to RC show Case a 40cc engine will pull 20lbs max, 14-16 sport and less than 14 for 3D.
I've read where allot of people were installing a 40cc gas engine in the GP Giles 202. (72" wing span) Some may like this set up some say it turns the plane into a bomb. (to nose heavy) I think the most perfect plane for a Brison 2.4 is a wide body 76-78" aerobat plane. Kangke USA Texas Hurricane is a very good plane for the 2.4. The old Yellow A/C Cap10b is another. Something that can handle the width of the engine (Walbro carb and slimline muffler) without carving up the cowling too much.
The GSP Yak may be a little small for the 2.4 but again watch your weight. Build it like a strong .60 and not like a small big bird. In other words watch your battery weight, use one strong digital servo instead of multi servos.
If you do that you should be okay.
Good Luck
jds
