Re: EZB Prop wood- quick!

From: <leop_at_lyradev.com>
Date: 02 Jul 2017 16:36:10 +0000

Wombat,

 The blocks mentioned (12"x4"x3" ) at 17 ounces are just under 13 pounds per cubic foot in density.
 

 Tim,
 

 4# wood is too light for F1L props. I use just a bit over 5# wood and 0.010# thickness for my F1L props. Two of my F1L props were made by sanding 1/32" c-grain sheet (5.14#) that I found at the local hobby shop. Last month, I provided 12"x2"x 0.012" sheets cut from a 12"x2"x2", 5.17# block that I found at Hobby Lobby to some local junior fliers for their junior F1D plane. The girls sanded the prop blanks (cut from the sheet) down to weight (finished thickness just under 0.010" after water soaking). Fro prop blades, I find it better to use sheets slightly thicker than needed and then sand down to weight. If the sanding is done with medium grit (I use 80 grit) with little pressure, the wood comes back to the original density after soaking in water (and expanding in thickness).
 

 My F1L's fly well and often have better flight times than the 600mg EZB planes. So, the above advice is tested and works out.
 

 LeoP
 

Received on Sun Jul 02 2017 - 16:36:11 CEST