Sorry about the blank reply.
Yes motor sticks get soggy and floppy when the humidity is high. I think an equally obnoxious problem is spars losing their stiffness. Then the combination of high torque downthrust and high torque wing twisting and spars that don't want to work can add up to the dreaded right wing washout and the crash that almost always follows.
----- Original Message -----
From: Marty Sasaki
To: Indoor_Construction_at_yahoogroups.com
Sent: Monday, February 26, 2007 3:14 PM
Subject: Re: [Indoor_Construction] Flight Temperature
It sounds like the general lesson is to test keep good records which
include as much information as possible (time to get a thermometer,
hydrometer, and a barometer for my flight box!) and do controlled,
partial, motor tests on the day of the contest.
I don't know whether it has been mentioned in this thread, forgive me
if it has been, but humidity can have a big effect on the motor stick
stiffness. A more flexible stick will normally give you more
downthrust during the power burst.
Marty Sasaki
[Non-text portions of this message have been removed]
Received on Mon Feb 26 2007 - 12:30:57 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:44 CET