New Products Flash Sale
Thread Tools
Old Nov 26, 2015, 10:05 PM
nevadafinish is offline
Find More Posts by nevadafinish
TD noob
Joined Jan 2013
56 Posts
Discussion
PaxAero Chrysalis MkII E One Design Contest Southern Maryland

The Patuxent Aeromodelers are hosting a one design group build and contest.

We're just getting started on the group build of the Chrysalis MkII from DJI Aerotech, taking our time and helping each other to bring as many models to completion as possible over the winter. We aren't setting a blistering pace. You have time to look around, think about it and then join us. Even if you don't enter the contest, we encourage you to participate: follow the thread, build along with us and have fun.

PaxAero flies out of Helwig Field in Hollywood, St. Mary's County, Maryland. We are throwing the build and contest open to surrounding clubs. You don't have to be a member to participate.

This is our Crysalis MkII build thread. Expect to see a lot of information, photos and discussion right here.

Here is a link to our club's webpage: http://paxaero.com/ Most definitely check it out. We have a diverse group of enthusiasts with interests in all types of sailplanes, aerobats, 3D, helicopters, FPV, quads and you name it.

Rules:
Doing things together is part of the fun of this hobby/sport. So, let’s start a group build over the winter. This will be our first (in a while) one design contest. We'll need help from more experienced members of PaxAero and of the surrounding club members who might join.

If you have not done much building, then building your model as part of a club group will be a great learning experience. There are experienced builders who will be available to help. This removes some of the uncertainties for those of us that are not great or experienced builders. Ask lots of questions, take your time building and you will have one beautiful electric glider.

The Build

The model proposed is the Crysalis MkII.

The kit is well documented, has easy instructions and there are large build threads on the forums.

http://www.rcgroups.com/forums/showthread.php?t=1842520
http://www.rcgroups.com/forums/showt...r+power+system
http://www.rcgroups.com/forums/showt...r+power+system
http://www.wattflyer.com/forums/showthread.php?t=68088



The Contest

There will be a One Design (OD) contest based on the Chrysalis. The fun of this type of contest is that everyone flies the same type of model. This is very popular in other clubs. You have heard people say that it is the pilot, not the plane that wins the contest. A one design contest proves it!

Some people avoid competition because they feel their plane is not competitive. Well, in this contest you will be on equal footing with everyone else. All you need is a Chrysalis MkII for the contest. (You might even be able to buy one someone else has built.)

You'll have plenty of time to build and practice as the OD contest won't be until the spring/summer. And if the contest is well attended and we like the format there is no reason that we can’t do it multiple times.

Rules of the build if you want to fly it in the One Design contest:

* OK to buy one from someone else!
* OK for carbon on the wood spar (remains woody legal)
* OK for larger wing rod
* OK to reshape and fiberglass the kit fuselage and finish it as you please
* OK for one, two, or three piece wing
* OK to use either screws or rubber bands to hold down the wings
* OK to choose your own electronics and internal layout
* OK to go T tail or V tail - your preference
* OK to extend nose length to minimize weight added for CG balance
* Decorate as you like
* No skegs will be allowed in the contest (you won’t need one)
* We will use ALES rules 200m / 30 sec max run.
* ALES limiters will be required to compete in the formal contest (e.g. http://www.rcgroups.com/forums/showthread.php?t=1371423)
* Other modifications: Leeway will be given to modifications as they will not make a major difference when launching. The basic guideline is to make internal improvements (lighter, stronger, easier to transport) and not external enhancements to the wing or tail group (bigger wing, different shape wing, different airfoil). The CD has the last word on whether a model modification may be entered in the one Design Contest. If your modification falls outside of these rules it would be a good idea to ask first.


Flight tasks will be between 6 and 12 minutes. The landing task will be a runway landing so you can slide the plane in and still get a maximum point landing. No need for skegs or dork landings. Skegs will not be allowed. The OD contest date will be in ~June 2016.

And When You are Done

This plane should not become a hanger queen. It was chosen because people will want to fly it. Once you have finished the build you should have a beautiful 2M sailplane that can be flown for sport and which is very well suited for ALES contests, a bit of slope flying, or perhaps a monthly club contest.

You should even be able to compete in the Eastern Soaring League contests and place well. There is no reason this one would not place well in the hands of a practiced pilot in the ESL Sportsman class.

A build thread will be established where we can ask questions and share our experiences. And there should be a LOT of show and tell at the club meetings as we progress with the build. This is going to be fun!

Contact Dan (nevadafinish @ hotmail . com) if you are interested. We will probably arrange a group buy of the kits so we can take advantage of discounts. (I have already contacted Don Stackhouse) If you are an experienced builder and would like to help others with a Chrysalis build or modification, please say so in your response.


Purchase
Kit http://www.djaerotech.com/dj_product/chrysalis2m.html - we are building the 2meter MkII electric.


Balsa By Density And Size
--------------- http://www.specializedbalsa.com/prod...lsa_sheets.php
Carbon Fiber Products
--------------- www.cstsales.com/products.html
--------------- www.acp-composites.com/home.php


Build Threads
Oct 2015 ------ PaxAero Chrysalis MkII One Design Build Thread
---------------
Sep 2012 ------ http://www.wattflyer.com/forums/showthread.php?t=68088
Oct 2011 ------ http://www.daddyhobby.com/forum/showthread.php?t=63619
Oct 2011 ------ http://www.rcgroups.com/forums/showthread.php?t=1517432
Oct 2011 ------ http://www.daddyhobby.com/forum/showthread.php?t=63619 - detailed photos, discusses errors in plans <checking to see if fixed>
Feb 2011 ------ http://www.rcgroups.com/forums/showthread.php?t=1393114
Jan 2008 ----- http://www.rcgroups.com/forums/showthread.php?t=808656




Other Useful info

How To
Tighten Covering On ARF Models
---------------- manuals.hobbico.com/top/tighten-covering.pdf

Reviews
HLG ------ http://www.fagnits.com/wtph/airplanes/chrysalis.html
Dec 2011 ------ http://metrorcflying.com/images/lass_dec11.pdf
a review to consider, and points to remember


Manuals
Haven't found a link yet...

ALES USA General Forums
http://www.rcgroups.com/forums/showthread.php?t=1330889
http://www.rcgroups.com/forums/showthread.php?t=2334521



Videos
Hand Launch/Maiden
---------------
Chrysalis 2m Electric Sailplane Maiden Flight (0 min 11 sec)

From the air
---------------
Chrysalis Electric Powered Glider (3 min 3 sec)

---------------
Chrysalis 2m Sailplane (3 min 47 sec)

Get you pumped up for ALES!!!
---------------
F3X Viking-E Race - 4kW - On board video from Rakovnik (3 min 48 sec)




Controls Test
---------------
Chrysalis 2M Electric Sailplane Controls Test (1 min 23 sec)

---------------
Chrysalis spoiler trial (0 min 23 sec)



Original credit goes for the generation of this page goes to PowerBud over at the LISF One Design Page for the Bird of Time - What a great resource!
nevadafinish is offline Find More Posts by nevadafinish
Last edited by nevadafinish; Dec 23, 2015 at 04:33 PM. Reason: Removed references to plans
Reply With Quote
Sign up now
to remove ads between posts
Old Dec 18, 2015, 09:49 PM
nevadafinish is offline
Find More Posts by nevadafinish
TD noob
Joined Jan 2013
56 Posts
Thinking about the 3 piece wing - thoughts?
nevadafinish is offline Find More Posts by nevadafinish
Reply With Quote
Old Dec 19, 2015, 12:00 AM
Don Stackhouse is offline
Find More Posts by Don Stackhouse
Registered User
Don Stackhouse's Avatar
United States, OH, Bradford
Joined Jun 2005
4,624 Posts
If you don't absolutely have to have the 3-piece wing, I'd recommend sticking with the one-piece stock wing. I can ALMOST fit the stock one-piece 2-meter wing in my Mazda Miata convertible (in fact it will fit if I don't mind unzipping one end of the back window and letting about 8" stick out the back).

Note, it says in the proposed rules above "OK for plans or kit". The plane is designed to be built from a kit. The information on the plans and instructions is more than sufficient for building a kit, but it is definitely not sufficient to scratch-build one from the plans. Joe and I are in the kit business, it would not make sense for us to sell plans for scratch building.
Don Stackhouse is offline Find More Posts by Don Stackhouse
Last edited by Don Stackhouse; Dec 19, 2015 at 12:07 AM.
Reply With Quote
Old Dec 21, 2015, 01:42 AM
dankar04 is offline
Find More Posts by dankar04
Registered User
Tucson, Az
Joined Feb 2007
14,907 Posts
The kit quality is excellent. You could not buy the wood to build these. Yes i know you have ton of wood. So do I and good contest balsa. Use it for something else.
The instruction book is one of best of any kit i have seen. Plans are excellent. Each rib is different as shape of wing. I have no Dog in fight but kit makers like this shoukld be supported by us glider flyers. Kit prices are very good and shipping is good also.
dankar04 is offline Find More Posts by dankar04
Reply With Quote
Old Dec 23, 2015, 04:34 PM
nevadafinish is offline
Find More Posts by nevadafinish
TD noob
Joined Jan 2013
56 Posts
Thanks for the input on plans, removed references to plans in the intro. Don did you get my email regarding the group buy?
Thanks!
nevadafinish is offline Find More Posts by nevadafinish
Reply With Quote
Old Dec 29, 2015, 08:51 PM
nevadafinish is offline
Find More Posts by nevadafinish
TD noob
Joined Jan 2013
56 Posts
3 kits purchased so far...

Pax Aero has three kits on order... Hoping PGRC will be interested and join in! Also had interest from Ohio...
nevadafinish is offline Find More Posts by nevadafinish
Reply With Quote
Old Jan 04, 2016, 01:26 PM
Wazmo is offline
Find More Posts by Wazmo
Duane, LSF IV
Wazmo's Avatar
No. VA
Joined Nov 2004
1,704 Posts
I've ordered two kits for myself. Don't know whether I'll be able to participate in the contests, but it should be a fun build.
Wazmo is offline Find More Posts by Wazmo
Reply With Quote
Old Jan 05, 2016, 09:15 PM
nevadafinish is offline
Find More Posts by nevadafinish
TD noob
Joined Jan 2013
56 Posts
Anyone can join...

Thanks Wayne - just so folks know, anyone can join in the contest - just post your photos. We'd love to have you join us on our flight date, but if can't make it - no problem!

No restrictions on how late you join either - it's just about a fun build that we can all work on together.

Dan
nevadafinish is offline Find More Posts by nevadafinish
Reply With Quote
Old Jan 05, 2016, 09:45 PM
nevadafinish is offline
Find More Posts by nevadafinish
TD noob
Joined Jan 2013
56 Posts
Ales

Official League Rules...
http://www.ales.org/About/LeagueRules.aspx

An Altitude Limiter can be found at:
http://www.soaringcircuits.com/

Others can be used but may be out of production:
e.g. SkyLimit Altitude limiter from Winged Shadow

We're looking for a device that limits altitude to 200m AGL and/or 30sec of runtime, whichever comes first.

Some really nice ALES footage by Paul Naton
ALES Contest 1.mp4 (10 min 30 sec)
nevadafinish is offline Find More Posts by nevadafinish
Reply With Quote
Old Jan 28, 2016, 03:43 PM
Wazmo is offline
Find More Posts by Wazmo
Duane, LSF IV
Wazmo's Avatar
No. VA
Joined Nov 2004
1,704 Posts
Just got an email that my order shipped. Looking forward to the build. Need to clear off my workbench.
Wazmo is offline Find More Posts by Wazmo
Reply With Quote
Old Jan 28, 2016, 05:09 PM
Pcd7326 is offline
Find More Posts by Pcd7326
Chad. Registered User
Pcd7326's Avatar
United States, OH, West Milton
Joined Dec 2015
13 Posts
This is a post from Don Stackhouse on the Chrysalis 1.5 m/ 2 meter kits thread. Link below:

http://www.rcgroups.com/forums/showt...2544300&page=4

"The system we currently recommend for the 2-meter is a Himax 3522-0700 motor with a speed controller (we prefer Castle Creations ESC's) rated for about 35 amps, and a 3-cell Li-poly battery around 1500 mah or so capacity. Use a folding prop around 11-7 to 12-8. More diameter and/or pitch means more amps and watts at full throttle, and you can buy a new set of blades to swap out in the existing hub if you want to experiment. For motors, speed controllers and batteries we like Radical RC www.radicalrc.com

Use a 42 mm spinner with a shaft collet that fits the 5 mm shaft on the Himax motor.

Avoid APC brand folding props. They have a design flaw that has caused us some serious problems in the past (in-flight failures on brand-new props running well below their rated RPM).

We prefer the "Freudenthaler" ("Aeronaut") CAM folding 2-blade props. Esprit Models www.espritmodel.com carries a good selection of those props. You will need to buy a 2-blade hub and 42 mm spinner with a 5 mm collet, and a set of blades. Do not get the "turbo" spinner with the cooling air inlet in the tip, it will not work properly with the cooling air intake system already designed into the 2-meter Chrysalis (in fact I have my doubts about how effective it is in general).

I'm in the process of writing all this up in a sheet we will be adding to the 2-meter kit."
Pcd7326 is offline Find More Posts by Pcd7326
Reply With Quote
Old Feb 01, 2016, 11:30 AM
rc4fun is offline
Find More Posts by rc4fun
Registered User
Maryland
Joined Dec 2002
495 Posts
i got one

My order showed up on Saturday.
Packed very well no problems. The instructions are printed on one plan sized sheet, I'll probably cut mine apart for easier access.
I certainly will not be the first one to start or finish. I've got a couple of other projects that I need to make some progress on before I do more than look at this one.

Anyone thinking about motors other than the one Don recommends? The Himax 3522-0700 does look like a good choice.
Kerry
rc4fun is offline Find More Posts by rc4fun
Reply With Quote
Old Feb 01, 2016, 12:47 PM
Don Stackhouse is offline
Find More Posts by Don Stackhouse
Registered User
Don Stackhouse's Avatar
United States, OH, Bradford
Joined Jun 2005
4,624 Posts
We've actually test flown that motor. We're reluctant to actually recommend a motor we have not personally flight tested, for obvious reasons. However, that does NOT mean other motors don't work. Folks report good results with the Parkzone 480, for example, although its lighter weight could make getting the C/G correct more of a struggle. However, folks have succeeded with it and without a bunch of ballast in the nose, so if you keep the tail light, it can be done. There are other motors as well.

There are some Axi motors that fit but that use a different mounting bolt pattern, with two of the holes on a slightly smaller radius than the other two. We have a special F1 bulkhead that fits that, and we can swap it out for the regular one if you request it when you order the kit.

As far as the plans, you do not need to cut them up, just zig-zag fold them along the horizontal lines between the instruction blocks. Gets it down to a manageable size that you can leaf through easily like a book, much easier than trying to keep track of a bunch of loose pieces.
Don Stackhouse is offline Find More Posts by Don Stackhouse
Reply With Quote


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Southern Maryland Electric Fly-in thebest_102 Electric Flight Events 8 Sep 24, 2014 08:29 AM
Contest Rules for One-Design Libelle DLG Contest LSF226 Hand Launch 140 Mar 27, 2014 09:30 PM
Contest Short notice Warbird Event in Southern Maryland 2qwik4u Fuel Warbirds 0 Sep 02, 2009 08:35 AM
Contest Short notice Warbird event in Southern Maryland 2qwik4u Electric Warbirds 0 Sep 02, 2009 08:32 AM
Jet Design Contest entry #2 -- Viperjet MKII berniep1 Electric Ducted Fan Jet Talk 10 Apr 18, 2008 12:30 PM