As I am sure you know, building lighter not only increases the flight potential, but more important in this discussion, it also reduces the impact forces. On the question of your prop, I have peanut scale models that weigh 6-9 grams. The props are about 6"-8" diameter, use formed 1/32" thick balsa blades & use bass wood spars that are .050" Sq. (HO scale 4"X4" lumber). They weight about .5 gram total. The spar is glued on to the top of the blade & extends about 1" on the blade. Sometimes I let the spar into the blade by cutting a narrow slot. I rarely have any breakage.
Gary Hodson
-----Original Message-----
From: Neil Dennis <wombatt_at_gmail.com>
To: Indoor_Construction <Indoor_Construction_at_yahoogroups.com>
Sent: Sun, Feb 17, 2013 5:26 pm
Subject: [Indoor_Construction] props
I'm embarrassed, that clunker weighs almost 6 gms !!!
It breaks where the hub and blade are glued together so I thought to run
a full length spar up the middle of the blade (from hub to tip)
I wasn't really looking for lightso shouldn't be surprised, wombat
Received on Sun Feb 17 2013 - 18:27:24 CET
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