Archive of the Yahoo! Groups mailing list for the Bug hand-launch glider 2002-2018

From: "gldrgidr" <gldrgidr@...>
Date: Tuesday, December 9, 2003 11:04 PM
Subject: Re: Longest flights with the Bug
First off. The week before my flight, the high temperatures were in the low 50's and upper 40's which lowered the ground surface temperatures. On the day of my long flight, the temperature was in the lower 60's. It was an unusually warm day. The wind was light and variable. Perfect conditions for long thermal flights. In the fall, the best flights sometimes occur when a colder than normal night is followed by a hot calm day. The differential heating (different surface areas absorbing the sun's heat at different rates) is increased when the temperature differential is largest between night and day or between the ground temperature and the air temperature. The flight occurred on the last day of fall (at least here) no matter what the calendar said. Thermals do occur during the winter. It's been my experience that most thermal days during the winter, are also windy days. But there are exceptions, especially if the winter is dry. I'm planning to spend the winter building a superlight bug for next spring like jason's (Zhack?). I'm aiming for 3.25 ounces for a 34.5" wingspan bug. Current Bug is 3.8 ounces and 34.5" wingspan. John John --- In BugHLG@yahoogroups.com, "Michael Kelley" <mkelley@m...> wrote: > Just a note, thermals work on temperature differential - so any time you > have major temperature differences within an air mass you get major lift > - the winter months offer some really great thermal opportunities. > Remember you are working with a micro climate and a snow covered field > next to a warming asphalt parking lot is a super thermal generator. > Look for calm days especially for the Bug. > > HTH, > > Mike > > Michael Kelley > Leesville Road High School > Career & Technical Education > Aerospace Technology > 919/870-4250 > http://www.leesvilleaerospace.org <http://www.leesvilleaerospace.org/> > > -----Original Message----- > From: trizzle777 [mailto:trizzle777@y...] > Sent: Tuesday, December 09, 2003 1:10 AM > To: BugHLG@yahoogroups.com > Subject: [BugHLG] Re: Longest flights with the Bug > > > That's unreal, and congratulations. I haven't finished my bug yet, > but I do have other (poor) HLG experience flying a Candy HLG (ARF) in > cold weather. At least recently on an overcast day, I was getting > very short flights with lots of sink crushing down on my glider. I > limped home and packed it in for the season, on the premise that cold > air tends to fall and flying something that depended on rising > columns of warm air was an exercize in futility. I'm new to this, > and your experience has sparked hope that I won't need to wait for an > August scorcher to go out and at least get some good trimming and > balancing flights in. > > So needless to say, I'm going to fire questions at you like a 4 year > old. ;-> > > I don't know much about thermals, but had always assumed (perhaps > wrongly) that I needed a certain minimum air temperature to get any > significant lift, and have hence written off flying before it warmed > up a little more. What was the air temperature approximately, and > what kind of wind were you flying in? > > Were you side arm launching, using any pre-sets for the launch, and > does your bug have a wing-tip peg? (If you download Al Wright's > Gambler manual from his site, he gives what seems to be some nice > tips on SAL'ing). I've never actually launched side-arm, at least > not yet. Are pictures of your bug posted? > > What's the terrain where you were flying. Could you have picked up > any slope lift? > > BTW, I find RadioCarbonArt videos to be excellent. There's one > called "Secrets of Thermals" which I may pick up as a result of your > message, in order to learn more. > > Thanks again. > > > > --- In BugHLG@yahoogroups.com, "gldrgidr" <gldrgidr@m...> wrote: > > Two weeks ago, here in New Jersey, we had a good flying weekend. I > > got my longest thermal flight with the Bug. It was 6 minutes and > 50 > > seconds. Has anyone had longer thermal flights? Maybe we should > > have a running contest for longest Bug thermal flight. > > What do you think? > > Of course this is the wrong time of year to expect long flights. > As > > soon as I'm finished with this post, I have to go shovel the snow > out > > of my driveway so I can get to work tomarrow. > > > > John > > > > Yahoo! Groups Sponsor > > <http://rd.yahoo.com/SIG=12c5svogr/M=259395.3614674.4902533.1261774/D= eg > roupweb/S=1705370808:HM/EXP=1071036615/A=1524963/R=0/*http://hits.411w eb > .com/cgi-bin/autoredir? camp=556&lineid=3614674&prop=egroupweb&pos=HM> > > <http://us.adserver.yahoo.com/l? M=259395.3614674.4902533.1261774/D=egrou > pmail/S=:HM/A=1524963/rand=937908190> > > To unsubscribe from this group, send an email to: > BugHLG-unsubscribe@yahoogroups.com > Home Page - http://groups.yahoo.com/group/BugHLG/ > <http://groups.yahoo.com/group/BugHLG/> > > > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service > <http://docs.yahoo.com/info/terms/> . > > > > > [Non-text portions of this message have been removed]