SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Mar 16, 2008, 10:08 PM
Aircraft Designer Guy
AJWoods's Avatar
Melrose, MA
Joined Jul 2005
1,396 Posts
Discussion
The Quark--22" SAL Glider for Parkzone Receiver Brick

I posted this in the Indoor/Micro forum, but I figured you guys might find it interesting too.

I've made a small SAL glider to use with the very popular Parkzone Cessna 210 electronics. People have been adapting these for us in a ever growing number of interesting models (http://www.rcgroups.com/forums/showthread.php?t=720179) and I figured it was time to make a glider. The integrated receiver/servo/esc unit weighs in at 6 grams and is about 1"x0.75''x0.25''. The unit retails for $50, but you can usually find them in the F/S forums pretty cheap. ( I got the receiver, tx , battery and charger for $50 shipped from someone who was looking to get rid of their beat-up airframe.)

Basic specs:

b= 22 inches
s= 86 in^2
AUW= 0.9 ounce
w/s= 1.5 oz/ft^2

The wing is made from a piece of 10mm depron, tapered and sanded to AG03 sections. It's pretty stiff, and should be fine for such a light airframe. Hopefully there'll be a break in the wind tomorrow and I can give it some test throws.

-Adam

Short Video: http://www.rcgroups.com/forums/showt...53#post9411451

Newer Video: http://www.rcgroups.com/forums/showthread.php?t=1050727
AJWoods is online now Find More Posts by AJWoods
Last edited by AJWoods; May 16, 2009 at 11:00 PM. Reason: New video
Reply With Quote
Sign up now
to remove ads between posts
Old Mar 17, 2008, 05:15 AM
Registered User
kimhey's Avatar
nøtterøy, NORWAY
Joined Mar 2006
1,171 Posts
Very nice! I have three parkzone/kyosho bricks, and have been thinking of making a small SAL for some time.....

Post a flightreport, please.

(there is a range-issue )
kimhey is offline Find More Posts by kimhey
Reply With Quote
Old Mar 17, 2008, 11:27 AM
Registered User
Corona, CA
Joined Sep 2007
923 Posts
I did two things to beat the range issue.

1. Route the Rx antenna straight up.
2. Build a bi-quad Tx antenna like this:

Mr._Mulligan is offline Find More Posts by Mr._Mulligan
Reply With Quote
Old Mar 18, 2008, 07:49 PM
Registered User
oldschoolvdub's Avatar
Santa Maria, CA
Joined Oct 2007
332 Posts
looks sweet.. can't wait to see how it flies...
oldschoolvdub is offline Find More Posts by oldschoolvdub
Reply With Quote
Old Mar 18, 2008, 09:10 PM
Thermal Naked!
Hossfly72's Avatar
United States, AL, Mobile
Joined Dec 2007
1,655 Posts
I figured up what I would need to build one like it today after reading this thread. Just have to find time to get up to the hobby shop and get some Depron to try my hand at shaping wings. I dread that part! Been planning and thinking about this since I got the Cessna months ago, but never got around to it. Leave it to an MIT Kid to get me excited about it again! I should have paid more attention in math class! LOL


John
Hossfly72 is offline Find More Posts by Hossfly72
Reply With Quote
Old Mar 19, 2008, 09:06 AM
Aircraft Designer Guy
AJWoods's Avatar
Melrose, MA
Joined Jul 2005
1,396 Posts
Still waiting for a break in the weather (it's snowing now ) to get this thing in the air...I'll keep you posted

-Adam
AJWoods is online now Find More Posts by AJWoods
Reply With Quote
Old Mar 19, 2008, 10:26 AM
Gambler-AG DLG Designer
Allan Wright's Avatar
Lee, NH, USA
Joined Jun 2001
5,188 Posts
Rumor has it the TX/RX in the new Citabria has improved range.
Allan Wright is offline Find More Posts by Allan Wright
Reply With Quote
Old Mar 20, 2008, 06:57 PM
Aircraft Designer Guy
AJWoods's Avatar
Melrose, MA
Joined Jul 2005
1,396 Posts
Finally, got a chance to give it a go before the sun went down this evening. Just a few javelin tosses, but the results look promising. Nice flat glide and it penetrated well in the light wind. This weekend I'll start trying SAL tosses and see if I can get somebody to take some video.

-Adam
AJWoods is online now Find More Posts by AJWoods
Reply With Quote
Old Mar 20, 2008, 09:49 PM
Registered User
kimhey's Avatar
nøtterøy, NORWAY
Joined Mar 2006
1,171 Posts
Video is great!
kimhey is offline Find More Posts by kimhey
Reply With Quote
Old Mar 22, 2008, 07:03 PM
Thermal Naked!
Hossfly72's Avatar
United States, AL, Mobile
Joined Dec 2007
1,655 Posts
OK Adam,

First day of the weekend is over and I didn't get to fly at all due to errands and a sick child. Tell me you got to fly and that it flew like a homesick angel! Oh yeah, where's that video? Don't hold out on us man! Help a brother out. I need a fix! Show me something flying! LOL
Hossfly72 is offline Find More Posts by Hossfly72
Reply With Quote
Old Mar 22, 2008, 08:00 PM
Aircraft Designer Guy
AJWoods's Avatar
Melrose, MA
Joined Jul 2005
1,396 Posts
good and bad news.

The wind finally calmed down enough to give it some harder tosses and it flies extremely well. I was flying in a small courtyard in front of my apartment, probably 40x40' with trees on all sides, and I was able to do several circuits off a gentle SAL toss. Bad news, I dorked it on an ugly throw and cracked the pod loose. By the time I got it fixed, the sun was down and any hope of videos was gone.

I'll be bringing it to my grandmother's house tomorrow to keep me entertained during the easter festivities, and I'll make sure to get one of the family members to take some video

-Adam
AJWoods is online now Find More Posts by AJWoods
Reply With Quote
Old Mar 22, 2008, 09:19 PM
Thermal Naked!
Hossfly72's Avatar
United States, AL, Mobile
Joined Dec 2007
1,655 Posts
Well rats!

Glad it flew well but sorry ya dorked it. I'll be finding some time tomorrow to get up to the shop for some depron and then re-reading that article on shaping wings. If the wind doesn't come up until later, I will definitely satifies my own urges and chunk the Skeeter around a bit but I can't wait to see how that little thing flies. It would be great to have something that small in my truck for lunch break relaxation! Good luck and happy thermal hunting!

Hoss
Hossfly72 is offline Find More Posts by Hossfly72
Reply With Quote
Old Mar 23, 2008, 08:30 AM
Registered Billy
Louisville, KY
Joined Dec 2003
335 Posts
Very cool. I wonder if it's small enough to fly indoors? Of course that would mean no more "bad weather" excuses

Brian

BTW does Depron sand easily?
bkopke is offline Find More Posts by bkopke
Reply With Quote
Old Mar 23, 2008, 08:55 AM
Thermal Naked!
Hossfly72's Avatar
United States, AL, Mobile
Joined Dec 2007
1,655 Posts
Indoors? Interesting concept. A large gymnasium, several space heaters pointing straight up and a couple of small fans at each end of th gym. An indoor Thermal field!


Adam? What did you do with the motor? Did you just snip the wires or what?
Hossfly72 is offline Find More Posts by Hossfly72
Reply With Quote
Old Mar 23, 2008, 03:31 PM
Registered User
Joined Sep 2006
795 Posts
isn't there a glider that looks alot like that one you built?
b36roxs is offline Find More Posts by b36roxs
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
For Sale 2 Parkzone Receiver's w/crystals for sale! $25 shipped for both! RCisAddicting Aircraft - General - Radio Equipment (FS/W) 3 Apr 14, 2007 11:21 AM
Looking for a receiver batt. that is LIGHT Gman2 Hand Launch 6 Apr 03, 2002 02:51 PM
A glider for a beginner Yoda Dog Electric Sailplanes 2 Aug 01, 2001 09:09 AM
Longest range for Mini-Receiver namancio Power Systems 1 Jun 29, 2001 04:31 PM
What would be a good thermal glider for a beginner? ChrisFeole Electric Sailplanes 11 Jun 28, 2001 12:34 AM