In-cowl Muffler for ST90
04-29-2002, 06:54 PM
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In-cowl Muffler for ST90
I have a SuperTigre .75 in my TF P-47 (60 size, @ 11.75lbs http://www.rcuniverse.com/gallery/index.pl?photo=351) now. The plane flies well but is under powered with the .75. So I want put in a ST .90 for more power, but the TF in-cowl muffler will not work with the 90 size engine. Any advice on how to solve this problem?? are there any modifactions that I can make to the TF Muffler?
Thanks
Andy
Thanks
Andy
04-30-2002, 06:42 PM
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In-cowl Muffler for ST90
Andy,
Wow! Is she glassed and painted by any chance? There is not an incowl i know of off hand that would be a direct fit/replacement to put your ST90 into that plane, no. You might consider going to a more powerful powerplant still within the model's power range. I would consider, esp if hte model is taking nose weight, a high weight high power engine like a YS120 pumper.
Wow! Is she glassed and painted by any chance? There is not an incowl i know of off hand that would be a direct fit/replacement to put your ST90 into that plane, no. You might consider going to a more powerful powerplant still within the model's power range. I would consider, esp if hte model is taking nose weight, a high weight high power engine like a YS120 pumper.
04-30-2002, 06:50 PM
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In-cowl Muffler for ST90
Yes she is glassed and painted 
. She weighted 10.5lbs before I had to add 15oz of nose weight.
How about the RCV120-SP with a four bladed (15.5x12 @ 5500) prop? This way I will not have to hack up the cowl....
Andy
. She weighted 10.5lbs before I had to add 15oz of nose weight.How about the RCV120-SP with a four bladed (15.5x12 @ 5500) prop? This way I will not have to hack up the cowl....
Andy
05-01-2002, 10:31 AM
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In-cowl Muffler for ST90
hI ANDY! Not familar with the RCV so i really can't say. The 4 blade will decrease your performance dramatically, but if the engine brings you enough power, you then dont have to worry about aircraft damage from the engine.
