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February 4, 2012 ORDER ONLINE |
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The following question came from Dave


Can you tell me about the flying characteristics of the Chrysalis 2m and or the Electric version?

We've flown it in 15 to 20 knot winds at that weight, and had absolutely no rouble penetrating. Of course if you want ballast, the entire space under the wing is unoccupied.

Still true for the sailplane version.

In the electric version that area is rather busy, but there is still room in there for ballast if necessary. Of course the best kind of ballast is a bigger battery. Switching from a 2-cell 2006 mah Li-poly battery to a 7-cell 2006 mah nicad adds 10.4 ounces, changes the wing loading from 7.37 oz./sq.ft. to 9.44 oz./sq.ft., increases the penetration considerably (and it was already pretty respectable at the 7.37 oz./sq.ft. wing loading). The thermalling performance obviously suffers a bit at that higher weight, although it's still good compared to others in its class. However, the extra current and voltage from the nicads actually increases the climb performance a little, despite the extra weight.

The large wing area plus the semi-elliptical planform, combined with the long length and generous tail area, gives it a "visual footprint" as big as some open class ships. Very important for beginners and for folks whose eyes are getting old. This is a two-meter that is easy to see!

No change there, still very easy to see.

Stability and damping in pitch and yaw is very high. We've actually been able to deliberately move the C/G behind the point where it starts to become divergent in pitch (an almost impossible-to-fly situation for typical airplanes) and then let absolute beginners fly it! The high damping from the long tail moment slows down its behavior to within the ability of a beginner to mentallykeep up with it.

The long tail moment also makes the plane's response to air currents much easier to see, which is a significant help for perfecting your thermalling skills. This is one airplane that really "talks" to you.
Minimum turning radius is similar to the HLG Chrysalis.

Still true for the sailplane version, and almost true for the electric version. At 37 ounces flying weight (with MP Jet 28/20-7 "outrunner" motor and 2006 mah 2-series-cell Li-poly battery) and 7.37 oz./sq.ft. wing loading, the electric version is lighter than many pure sailplane 2-meters!

Spoilers are standard equipment, they're absolutely necessary if you want to get it to come down within a reasonably sized landing area. They're very effective. In our tests, the L/D with spoilers open was less than 3:1. The spoilers use a direct linkage which is very easy to rig and adjust, but that also makes them extremely resistant to coming open inadvertently from air loads. No more troubles with spoilers sucking open on launch!

The new spoilers use two micro servos (one at each spoiler) for easier construction, setup and maintenance. The positive action is still there, but the linkages ad setup are quicker and simpler to build, set up and maintain.

All hardware is included, including special Sullivan cables with metal

clevises!

All hardware for the builder's choice of bolt-on or rubber-band-on wing attachment is also included.

Building is very fast and easy, especially with our new "Laserwebs" one-step shear webbing system for the wing. Construction methods are similar to the HLG Chrysalis, but simpler. Despite being a very big model (the fuselage and tail are as big as a Paragon's!), it goes together very quickly. Anyone who has built the HLG Chrysalis will find this one even easier to build. <br> Instructions are drawn on CAD, with lots of exploded views and isometric line drawings (better clarity than is possible from using photos), similar to the instructions for a good plastic display model.

We need to start a chart in the products section for motor/esc/battery combinations that we've successfully tested.

So far, we have:

  • 8.4v Speed 600 motor, 8-4.5 folding prop, 25 amp speed controller, 7-cell nicad battery with cell sizes from 500 to 2006 mah.
  • MP Jet 28/20-7 outrunner brushless motor, Graupner CAM 14-9.5 prop with 5mm collet and 42 mm precision spinner, 35 amp Castle Creations Phoenix-35 brushless speed controller, 7-cell RC2006 nicad battery
  • MP Jet 28/20-7 outrunner brushless motor, Graupner CAM 14-9.5 prop with 5mm collet and 42 mm precision spinner, 35 amp Castle Creations Phoenix-35 brushless speed controller, 2-series-cell 2006 mah Li-poly battery ("super-high-discharge" cells rated for 15C continuous discharge currents and 20C for brief periods)
That last arrangement is my favorite; it gives breathtaking climb rates under power, but keeps the weight low enough to still provide outstanding low speed performance.


From : Don Stackhouse

Don Stackhouse
DJ Aerotech



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