I will have to hire somebody to do the video shooting 
Just joking !!!!!!

I will do so shortly, will have to ask somebody to join me early morning.
Still trimming the glider

Quote from: K K Iyer on November 21, 2020, 09:10:16 PM

So I've decided to back off. And not post anything more on this thread till after the Contest.

Not sure if that's a good move from your part . Almost all of us are newbies in this sort of gliders . So I think learning is more important than competing. I don't care who wins . But I am sure I learned a whole lot after I was involved in this . Even test gliding seems fun ! CLG should be thrilling , I am sure . Please let us take time and improve . Competition spirit is there , but that comes when we are sort of "experts" in this field . So please don't leave us in the desert

Quote from: WeekendFlyer on November 21, 2020, 10:59:56 PM
I will have to hire somebody to do the video shooting 
Just joking !!!!!!

I will do so shortly, will have to ask somebody to join me early morning.
Still trimming the glider

Yes, big problems there  What I learned so far ( from the mentors and practice about trimming - and the mistakes I repeatedly did - balance the glider in its correct CG ( and forget about it unless there is loss of clay on landing ) Next focus on elevator tab and rudder tab/ washin during test flights . Rest of it - I don't know .

S174: Perfect video. That is ideal glide test. Hard push, nose rises up, gentle curve / turn to the left.

Your photographs of the elevator stab, rudder stab is good. A lot thicker than mine. But your glide test is good. So for now do not make any changes.

Go for a horizontal launch, that is plane is held level, wings level, pull back rubber about 2 inches and let go. It should do better than your glide test video. If that is true, go for a full pull launch. As I had said in the trim video, never do a partial pull on the rubber when you are ready for the catapult flight. Always pull back all the way. No partials. Your rubber band will break, take extra rubber bands.

Full Launch Pull: Launch angle say 70 degrees, bank angle 45 degrees, full pull let go. Do not look at the glider, aim to some point in the sky. If it loops back, sand your elevator tabs evenly on both sides, till loop goes away and you have an almost straight-up flight.
Let us see your video and can recommend something else, ONLY if needed.  Remember, if not satisfied ,play with launch and bank angle. Study the sketches in reply #110 on page 5 one more time to see how the flight should go.

Good luck, waiting to see your video.

Dear KK Iyer sir, sad to read your latest post Rely #220. A few contestants, at least, those posting videos and photos are doing real good. Proud of them catching on and asking real good questions. Other than indoor flying, CLG is the most difficult flights one can have, I am sure you agree. I think, after they master this, the expensive RC where you have to go to a special field to fly will be easy for them to grasp.

PS: Sweet but sad feeling today since I lost my first Lunchbox and right after that a Tip Launch Glider. Even when it is cold here today ( 7 deg. C)  thermals are quite strong and happened to launch both the gliders into it. We chased the Lunchbox for well over a mile and half in a golf cart. But kept on going up and up and then away, out of sight. Both the flights were just awesome. Today's Lost Lunchbox was catapulted with FAI tan sports rubber 1/4" and it was the first flight pulled on this rubber.

I am hoping that soon you guys will enjoy such moments too. It is a joy.

Thank goodness, had built the second Lunchbox

Will post some videos asap. Seriously thinking of getting a mobile head mount/ or make one with Velcro strips- then one is independent of assistant for taking videos.

There will always be two sides to the coin in terms of how much info / tech stuff is too much. My opinion -  nothing is too much - it's for the other side to assimilate and digest - or read and ignore.

Free Flight- put your mobile number on the models and say " Reward for Return".
May be lucky to get it back. Model going off into outer space is "sweet agony" - happy it was trimmed perfectly - but sad to lose it.

Now to get down to some actual competitive flights.

yes, I do have my name and phone number on the glider. From so many I have lost over the past 3 years in  strong thermals, only two came back as some modeler was searching for his plane and found mine. By then, the model could not weather the rains, dirt, little bugs etc, were not flyable again, but was sweet to see them again. Funny, when searching for my glider found another of a colleague of ours, who lost it a year ago.

Anyways, back to the topic now. Looking forward to hear and see everyone's Lunchbox experience.

Went out to the open space nearby - the place with a gusting stiff breeze- no choice.
My Lunchbox in hand chucks neatly turning left. Horizontal catapult launch - CG corrected - now model climbs and starts turns in left circles - fights the headwind and keeps trying to turn left while breeze drifts it sideways.
In such conditions got approx15 sec flights. Angle of launch about 60 degs. Will give steeper angle when testing in calm conditions.
Stab tilt given by twisting tail boom - was not set during construction.
Will drag son along next outing to get some videos.

Awesome! Looking forward to your video.

Realised that a lot depends on a proper launch in terms of bank and angle of release - both angle relative to ground horizontal and angle relative to wind direction.
Learning a lot with what is usually dismissed erroneously as a simple model - model may be simple - but the aerodynamics remains the same as a complicated model.
Very humbling to go back to basics and realise there is a lot you don't know.

My lunchbox with wings all decked out - full test flights with video scheduled for later this evening.

Looks pretty with all the tabs and coloring of the wings. Looking forward to your videos!

Got ditched by the videographer (son) as he got tied up in another commitment. Must get that head band stuff. Flew the lunchbox anyway - quite happy with the way it is behaving .
No loop on full launch. Added a wee bit of clay as there was a hint of a stall. Was doing right turn to transition and left turn glides.
A single video will be worth more than all these words.
The orange colour on wings was a great help in finding and retrieving the model from the tall dry grass.
Video coming soon. Competition closure date also round the corner.
Don't see competition flight videos from any others.

" Was doing right turn to transition and left turn glides" Perfect.

Any flight times. Without good air, I speculate 40 + seconds for your glider.

Yes, looking forward to everyone's video.

Will time flights tomorrow. Now got the hang of launching it so I confident it stays within the field - the field abuts the airport boundary wall - if the model drifts across its lost. I don't think flights are touching 40 secs - that's an eternity- anything  closer to 30 secs will be satisfying.
Since there always a smart wind that is gusting- some flights I observed when model glides and is headed directly into the wind it is almost stationary at the same height for some time and when the gust dies down the model continues on it left circles path downwards.
A good lesson that speed of air flowing over wings is what is important for lift - not ground speed.
Will get those videos asap.

Closing date almost there -- still await performance videos from bonafide participants.

Rummaged thru my aeromodelling goodies rack - have some original CLG kits procured very long ago from IHC.
All pre cut parts with catapult handle - Ply doublers for nose.
(rubber bands have deteriorated with age).

Propose incentive for participants in addition to prize announced by KK

Winner -- Yellow bird kit

2nd Place - Tailwind kit

All others who post performance videos of the models made by kits sent by KK --- Tiny Tot Kit

Above offer subject to approval by Competition Administrator.

Regards

Quote from: Glidiator on November 26, 2020, 03:17:27 PM
Propose incentive for participants in addition to prize announced by KK

1. Winner -- Yellow bird kit
2. 2nd Place - Tailwind kit
3. All others who post performance videos of the models made by kits sent by KK --- Tiny Tot Kit

Wonderful! (Especially #3)

@ K K Iyer sir please please consider extending the deadline by 2 weeks. I am very busy now with college endsem exams and a national level robotics competition so I am not able to give the hobby the time it deserves. I also don't have the luxury of having an open area near my own house so I travel to my cousin's house to do that. This increases time needed. Please sir. Kindly extend the deadline by 2 weeks.

Quote from: Karthick Ashwath on November 26, 2020, 07:27:36 PM
@ K K Iyer sir please please consider extending the deadline by 2 weeks. I am very busy now with college endsem exams and a national level robotics competition so I am not able to give the hobby the time it deserves. I also don't have the luxury of having an open area near my own house so I travel to my cousin's house to do that. This increases time needed. Please sir. Kindly extend the deadline by 2 weeks.

Extension is often just another name for procrastination.

However due to the current situation, it's quite reasonable to extend the deadline to say 9pm on Monday, 14th Dec, (or as long as desired) if there's no objection from other participants.

Just let me know. 14/12? Or 31/12?

(Even though it means my next contest has to be deferred till 1st Jan  )

@KK
Thanks for approval of my incentive proposal.
How many's kits involved in competition?
Regards

Thank you sir. Will make it by 14/12. How many rubber bands(the ones that you provided) in series are allowed for the catapult launch?

Quote from: Karthick Ashwath on November 26, 2020, 09:45:08 PM
Thank you sir. Will make it by 14/12. How many rubber bands(the ones that you provided) in series are allowed for the catapult launch?

2 for initial tests.

Thereafter no limit.

Only Freeflight, Glidiator and I have restrictions - we can't use our TAN Super Sport rubber!

Quote from: Glidiator on November 26, 2020, 08:29:05 PM
@KK
Thanks for approval of my incentive proposal.
How many's kits involved in competition?
Regards

KIT and/or CONTESTANT

1. Weekendflyer
2. Rooster
3. SI74
4. Sanjayrai55 (Kit only, Honorary contestant?)
5. Aspersid
6. Hitesh Kher
7. Prabal276
8. Karthick Ashwath
9. Freeflight (No kit, Honorary contestant)
10. Glidiator (No kit, Honorary contestant)
11. Alex Bessie
12. Girish Madhavan
13. Dreamliner (only kit, not contesting?)

So 9contestants for 4 prizes.

Quote from: K K Iyer on November 26, 2020, 08:21:45 PM

Quote from: Karthick Ashwath on November 26, 2020, 07:27:36 PM
@ K K Iyer sir please please consider extending the deadline by 2 weeks. I am very busy now with college endsem exams and a national level robotics competition so I am not able to give the hobby the time it deserves. I also don't have the luxury of having an open area near my own house so I travel to my cousin's house to do that. This increases time needed. Please sir. Kindly extend the deadline by 2 weeks.

Extension is often just another name for procrastination.

However due to the current situation, it's quite reasonable to extend the deadline to say 9pm on Monday, 14th Dec, (or as long as desired) if there's no objection from other participants.

Just let me know. 14/12? Or 31/12?

(Even though it means my next contest has to be deferred till 1st Jan  )

I had proposed an extension before, however, that post got lost somewhere, no issues.
An extension will be appreciated for better competition.
14/12 is fine with me.