ORIGINAL: selnekav
I got SAP-180 from some friend on our field so i will be able to test it. the engine include the standard muffler
do you think 16x10 regular APC prop will be ok ?
Thanks
Not quite enough prop. 17x10 or 16x12 will work fine.
Does the muffler have the "tone inserts"? They restrict the power a little, but really reduce noise. Even with a little power restriction you will still have plenty of power.
In order to reduce the weight of the model, you can use the [link=http://www.tech-aero.net/ultra-ibec]Ultra IBEC[/link] to power the ignition. It uses power from the Rx battery, so you will want a larger Rx battery such as a (regulated) 2600mAh Li-Ion or LiPo battery of the 2-cell variety.