I don't know much about the airfoil. I was able to get the 45-50 second
dead times from the super light one. On my more typical Chinooks I
generally had 35-40 seconds dead air. I think a better pilot than I could
perhaps even get better dead air times. With a good light Chinook you
should definitely be getting at least 40 seconds dead. For me, I had to
keep moving the CG back gradually, and I increased the dead air time a
second here or there. Just like the trimming article says! To get the 50
second dead air time with the light one I also practiced a good consistent
launch, a good consistent transition and smooth flying on calm evenings. I
would warm up for a few minutes and then every flight would be between 45
and 50 seconds, very consistent.
Oh, and here is another cool little hint. Don't throw away the foam core
"shucks" when you are done. You can use the lower 2 shucks to make a nice
wing carrier. You can tape them together, so that you have a sandwich of
shuck, wing, wing, shuck. After all this you can slide your tail between
the two wing halves, and you are ready to go! Fits nice in the carry on.
Ryan
"Mike Carris" <[EMAIL PROTECTED]> on 11/27/2000 09:49:02 PM
To: [EMAIL PROTECTED], Ryan D Woebkenberg/Tivoli Systems@Tivoli Systems
cc:
Subject: Re: [RCSE] HLG in the form of flying wings
Hmm....
50 sec dead air times with a 34" glider of any configuration seems
amazing?
Maybe I should try one of these. Do you know the airfoils, I would like to
build one.
Mike
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, November 27, 2000 10:47 AM
Subject: [RCSE] HLG in the form of flying wings
> Mr. Resin Head,
>
> Not knowing exactly what type of environment you intend to fly these
flying
> wing HLGs in (Thermal for fun, Thermal for competition, slope for fun,
> etc.), it is hard to make a good recommendation, however, I like everyone
> else in this world, it seems, will freely give my advice. ;-)
>
> The only flying wings I have ever owned and flown are the ones from
Thermal
> Gromit Works (www.tgworks.com). I believe Dick mentioned them in another
> reply. I have found these hand launched flying wings great fun. The
> reasons are as follows:
>
> They are compact. I took one of them to Puerto Rico and on a day trip to
> San Jose. It is simple to fit one or more in your carry on luggage, and
> still have room for clothing and all of your radio gear. I live in
> Indiana, so having a compact machine that I can take to enjoy
> thermaling/sloping in far off lands is a cool thing. They are also so
> small that you barley notice leaving them in your car for the summer, and
> this is good for honing pilot skills. I built 3 Chinooks and practiced 4
> days a week (sometimes at lunch and in the evenings) for most of the
spring
> and summer. When you own a Chinook or a Herring, there is never an
excuse
> for being caught with free time on a nice day and not having a glider
> around. I flew a Chinook as recently as Friday, when there was a break
in
> the rainy nasty weather we have had in Indiana recently from my parents
> back yard.
>
> They are cheap. At like 70 bucks a pop (for complete hardware, the
> covering material, and the coloring markers) and plenty of availability
(no
> need to place your order and then wait for a few months, like you might
> have to do with the prefab composite ships that require so much manual
> labor by their manufactures) I could build 3 ships quickly. With 3 of
the
> same ships, I quickly learned what differences in trim make (lateral
> balance, CG, control throws, etc.) that might have caused me problems
> before that I could never quite figure out. I learned that if you put
the
> gear as far forward as possible and use the lightest wood for the tail
you
> can fly a Chinook at 4.5 ounces. A 4.5 ounce Chinook really hangs. I
> could pretty consistently get 45-50 second dead air times with the light
> Chinook. Dead air times of 30-40 seconds with a 5.5 ounce Chinook is
more
> realistic. I also tried out that trimming article by Bryan somebody (it
> has been posted several times) and found that once I knew where I wanted
my
> CG, I had all 3 Chinooks flying well.
>
> They thermal well. It might be because of all the extra stick time, but I
> was more successful at getting good flights with the Chinooks than I had
> been with my previous hlgs (Wizard and Wizard Light, Monarch D,
Chrysalis).
> In my experience, the best conditions to thermal the Chinooks in is low
> wind. They also do best in tight strong thermals. You can really crank
> these little guys, and I have out climbed more conventional HLGs in tight
> lift. In a given lunch practice session of 45 minutes, I generally would
> have plenty of 2 and 3 minute flights and usually a 5+. This in a field
> that was not the worlds best but was close to where I work.
>
> They launch high. The tip launched sidearm (in this case more of an
> underarm) launch is way cool. Launch consistency is high, and you don't
> need to be crazy strong or coordinated to get good launches. I can
easily
> launch the Chinook to similar altitude as the better overarm launchers.
I
> was not able to do this when I flew the traditional javelin style
launches
> ships.
>
> They are durable. They really take a beating. And after they get a bit
> banged up, you can give them a "new coat of paint" by simply taking the
> Monocote Iron to them to get rid of the wrinkles. You would be suprised
> how much better they fly after you perform this routine maintenance
>
> Good luck with your quest for a hand launch flying wing, and I hope this
> helps.
>
>
>
>
>
> Ryan
>
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