From: "gldrgidr" <gldrgidr@...>
Date: Sunday, December 7, 2003 1:41 PM
Subject: Re: What is missing?
Date: Sunday, December 7, 2003 1:41 PM
Subject: Re: What is missing?
Henry,
When you look down the fuse, do the tail surfaces look straight? You
should only see the leading edges of the tail surfaces. Twisted tail
surfaces act like spoilers (drag device to make the glider lose
altitude fast).
You say that the launches are pathetic. Are you side arm launching?
Your not going to get much altitude javelin launching - unless you're
built like Schwartzeneger. If you do side-arm-launch, does the
glider launch at a high angle (nearly vertical)?
How much experience have you had trimming a glider. Your glider may
be trimmed to fly too fast. This glider must be flown slow - just
above stall, to get it to float.
Is there a twist in the wing?
Does it have equal washout in the tips?
Does it fly straight with the rudder centered?
The weather that day may have been dumping sink on you. Have you
flown it on other days?
Unless we can see photos of the glider or get more information from
you, I don't know what else could be the problem.
John
--- In BugHLG@yahoogroups.com, "dimple_kwok" <henry.kwok@x> wrote:
> I am frustrated that I am still getting miserable flight time.
>
> I have extended the wing and lightened the pod by using a smaller
> diameter tail tube. The all up weight for the extended wing bug
> ranges from 4.5 - 5.5 Oz depends on the nose weight I put in. The
bug
> glides straight and true but the launch altitude is just pathetic.
As
> a result flight time is often less than 10 seconds. I wonder why
this
> is the case? I would like to blame the weather during my test
flight
> (wind speed of 8mph or 12km/h on an overcast day).
>
> Is it still a weight issue? Flying condition? Or is it some of
those
> dihedral / incidence business?? What on earth am I missing here?
>
> Can you help me please?