Bladder Tubing Wall Thickness

Tell us what you do to get the best performance from your engines.

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sgilkey
Posts: 2351
Joined: Mon Mar 19, 2001 8:26 am

Re: Bladder Tubing Wall Thickness

Post by sgilkey »

I received my 1/4ID, 1/32 wall latex tubing from McMaster. I did some test inflations using a fuel pump pressure gage. The 1/32 wall tubing runs about 11 psi at the point where the tubing will "bubble" and then holds about 5.5-6psi fairly constantly as it is inflated further. The 1/16 tubing pegged my pressure gage at 12psi during inflation. So it looks like i have at least half the pressure with the new tubing.

The OD of the inflated bladder appears to be about the same.

I have not had a chance for test flights yet, Michigan spring weather is still to fickle. Hope to try it soon.
Scott Gilkey
RCCA# 330
sgilkey
Posts: 2351
Joined: Mon Mar 19, 2001 8:26 am

Re: Bladder Tubing Wall Thickness

Post by sgilkey »

weather broke and I got in some test flights with the 1/32 wall tubing. flew two 7 minute flights with smooth consistent performance from start to finish, with excellent throttlability. looks good so far.
Scott Gilkey
RCCA# 330
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