Re: Flight Temperature (Conditions)

From: Bill Gowen <b.gowen_at_earthlink.net>
Date: Mon, 26 Feb 2007 11:14:38 -0500

Yes!

  ----- Original Message -----
  From: calgoddard
  To: Indoor_Construction_at_yahoogroups.com
  Sent: Monday, February 26, 2007 11:09 AM
  Subject: [Indoor_Construction] Flight Temperature (Conditions)


  Thanks for all the great input. My SciOly flyers can really benefit
  from the same.

  It seems that temperature differentials of ten degrees or more F.
  could result in some hard to accurately predict variations in the
  torque curve of the rubber.

  It also seems as if variations in temperature and humidity could
  affect lift and drag in some complex, difficult-to-quantify ways.

  Local flying sites may also have updrafts, downdrafts, sideways
  drafts and any combination of these varying from second to second
  throughout the day.

  So my SciOly flyers must try to do several test flights in the actual
  competition flying site as close to their actual flying time as
  possible, using partial motors, and be prepared to adjust motor
  thickness, winds and launch torque as needed to achieve that much
  sought after no-touch conservative first flight if the site has
  ceiling obstacles.

  In the rare flat ceiling flying venue, their aggressive second flight
  could be a ceiling scraper.

  If the students ever get to compete in one of those 90 foot ceiling
  flying sites (like the University of Illinois or the Kibbie Dome) the
  students can then just worry about maxing out altitude and landing
  with 2 turns left on the rubber.

  Do these sound like good approaches?



   

[Non-text portions of this message have been removed]
Received on Mon Feb 26 2007 - 08:15:09 CET