Rubber-Powered Caudron C.714 - Anatomy of a Trim Session #3
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- Опубліковано 7 сер 2024
- Third evening of trim flying with the 28" rubber-powered Caudron C.714 free-flight model, designed and built by Tom Hallman.
Goes through a series of 12 trim flights, showing the effects of adjustments to the tail, thrust, CG and the use of Gurney flaps on wing TE. A few weeks prior she landed hard and cracked the fuselage in half. Once repaired, I started out with low winds to check her stability, then began filming at 580 turns. Max winds are around 2100. Weight w/o rubber, 57 grams.
*** 10 steps to trimming a rubber model, by John Koptonak: www.flyingacesclub.com/PFFT/Tr...
July 2018. "Start to Finish" slide show of the Caudron building project: • Rubber-Powered 28” Cau...
Trim session #1 in Pine Forge: • Rubber-Powered Caudron...
Trim Session #2 at Wawa: • Rubber-Powered Caudron...
Geneseo FAC Nats Journals from 2016 & 2018: www.maxfliart.com
For more info on free-flight rubber-powered models, check these websites:
www.easybuiltmodels.com/
www.volareproducts.com/BUY/
www.flyingacesclub.com
outerzone.co.uk/index.asp
National Free Flight Society - freeflight.org/
Mike Stuart's Flying Scale Models - www.ffscale.co.uk/
www.freeflightsupplies.co.uk/...
Flying Aces Club merchandise: www.cafepress.com/flyingacesclub
Center of Gravity merchandise: www.cafepress.com/centergravity - Наука та технологія
Besides the amusing sights of a wonderful bird that silently flies, it is so interresting to listen to your thoughts, when managing the trimmings.
Thank you for sharing that. I learn a lot. I had serious trouble a gusty day, trying to get my Korda Victory to behave. The winds made it hazardous, and resulted in a bent prop axel, and a number of small holes in the tissue. Now repared, it glides nicely in my garden, as well as with 70 turns. I hope for a calm day soon. Thanks a lot!
Thx for the kind words, very much appreciated.
Thank you for always taking the time to not only video your trim sessions, but also for narrating with your thoughts. It is so valuable for us that are learning, or in my case, re-learning aspects of this great hobby. Well, done. If had one one wish, it would be that you would consider and entire playlist of instructional videos.
All that and a good looker, too. I just get so calm and relaxed watching your sessions. Thank you.
We learn a great deal out of these trim sessions in your voice. I request if you candidate make build sessions like these in future. Great build again and good to hear wow after so many trimming. Thanks
Beautiful and SO relaxing to watch. This displays such maintenance of altitude on transition.. The gunsight may be useful in deterring predatory birds.. 👍
Many compliments! Beautiful model and beautiful fly!!!
beautiful model and trim session
Awesome plane! Thank you for sharing your trimming details! For me very helpful.
Great video Tom. Low wing models are always trickier to trim, but that was an object lesson in how to go about it.
Noel
Thx, Noel. Really enjoyed seeing this one come around. I really like how she looks up there now.
That was really excellent. Enjoyed listening to you reason through the trimming process. Outside of that one possible bad launch, it showed constant improvement. I think with a fresh motor, you'll get the climb you're looking for. Nice job, and thanks for sharing. Cheers!
Thx, Bill. She flew well in Geneseo, so I think I have a solid flyer for the future.
@@maxfliart looks like she wants a new home,,, i would give $ 25.00 shipped,,,, hehehehehe
@@jimmyhaley727 :-D
A really enjoyable video , learned a lot about trimming many thanks for sharing.
I enjoy the narrative you've been adding to your trim vids, a great addition for sure.
Beauty last flight
Super educational, great video, thank you for making it.
I really admire the people and their planes
Thank you, thank you, THANK YOU for the deeper explanations of the why's and wherefores.
It is stunningly difficult to find such explanations on line......
Wow...that is such a beautiful plane.
Super nice video, and you got about 1:50 or so out of the flight with 'tired' rubber. Loved the process!
Exceptional flying video as always, but really enjoyed the trim commentary. Very insightful. It also portrayed well the "art" of flying free flight which is such a different aspect from the building. Very beautiful.
Thx. Glad you find it enjoyable and informative.
Thanks for sharing your trim sesh w us. Guys like me that aren't surrounded by fliers can get lost in this process and quit on a model before getting the best out of it. BTW, I LOVE this plane and have thought of Nasise's dimer. Yours is beautiful and to your usual high standard.
Thx. Slow n steady is the way to go. Glad this one came around.
Красивые модели отлично летают! Спасибо за видео...словно в детстве побывал! )))
As usual, I learn more from watching your videos than anything (have I said that before?)
Thx! Glad u enjoy them. I learn a lot about each new ship by going slowly through the process.
Hoje consegui ser o primeiro. Deve ter se cansado, pois caminhou bastante. He, he, he. Parabéns e obrigado pelo vídeo!
Nice flyer.
With the clockwise propeller, does the plane make a circle on the left side or on the right side? Thank you
That Cuadron has alot of similarities with the Mikoyan 3 the untamable stallion, it was impossible to fly strait, but was used in large numbers.
How much would it help to put a little right bank in the launch to keep it from trying to toque roll into the ground? Great flying video again!
Possibly. A lot depends on the on the direction you launch into the wind too. Makes for some crazy launches at times. Interesting though when she nearly went in to the left, it became one of her best flights, which shows me that some thermalistic air was coming thru, and could have been part of the puzzle.
Holy crap.
Thanks for your quick response and your advice on the flyer, just Oder two of the squirrels flyers 👍 . We live in South Jersey and the Hobby stores around my area don’t carry rubber power airplanes, what would be a good online store to buy from? Thanks again 👍
I always include the following links in the text below my films. www.flyingacesclub.com, www.easybuiltmodels.com/ and www.volareproducts.com/BUY/ EasyBuilt and Volare would be the places to buy on-line. They can also give you recommendations for a newby in the hobby. The Flying Aces Club is the place to go for free-flight support and inspiration. They also have a great newsletter. Lastly, there are numerous on-line groups to check out. Try www.hippocketaeronautics.com and outerzone.co.uk/index.asp
Awsome work !!! Would really appreciate your advice in a beginner flyer , just started in the hobby with my son and we love your videos, if possible would you guide me in what’s a good flyer? I thanks for your time and advice 👍✈️!!!!!!!
Hi, thanks for the kind words. Ironically, my pals and I were talking about beginner models this week. Here's one that seems ideal as a first model. Called The Squirrel. www.rubber-power.com Inspiring website too! From there, you can upgrade to a model with a fully formed body or fuselage. The websites in the body copy above will be a good source for the next step and for modeling supplies. Good luck and let us know how it goes!
I have such an urge to move the cg a bit forward and increase the decalage, but what does an rc pilot know about trimming a free flight model.
I'd agree. It's on the edge right now but I'm pretty happy with where she is. I like flying slowly close to a stall attitude. As long as she's not falling off to either side, I'm happy. She they fly fast, I know I'm not getting everything I can out of the rubber.
When you say "tweak of the rudder" or add a bit of clay, and down-thrust, etc or otherwise make an adjustment, it would be helpful to show it. Are you relying on breathing on the rudder and hoping any warping adjustment you bend in will actually stay? What have you used for moveable elevator/rudder hinges if any. Nice videos.
I use 1/2" sq. soda can hinges on the stab and rudder. A pair will be strong enough to keep the setting, but it's always good to check that they haven't moved after a hard landing. Clay amounts are minimal, usually only a pea size or less is added.
@@maxfliart Thanks! Useful info.
Thank you for nice learning video. I'm new to this sport and trying to learn from your videos. I have question, why you are flying it to left? Also at 17:20 and 26:34 durning glide it is turning to right inspite of left rudder, I wonder why is it doing so.? What happens if you trim (rt rudder and rt thrust)it to go in right circles? Thank you.
Thx for the comments. Good question, as each model has a natural directional preference. I always try for right-right, but sometimes they let you know that it's not going to happen. The Caudron was one who needed to go left. It does fade to the right during the glide, but so far it remains in a non-spiraling attitude. That's the key.
Check out this series of flights by the Seafire, where I tried my very best to force her to the right. ua-cam.com/video/F823eGe69CY/v-deo.html It was very frustrating, especially when later I realized that on flights #2 &14 she gave me a sign that the left pattern was much more stable and floaty. I just didn't see or feel it at the time. The other 17 flights prove that she wasn't interested in going to the right. A few nights later in Wawayanda, she went left and grooved. But she too fades to the right in the glide, but keeps the inboard wing up throughout. ua-cam.com/video/bjB-sRL6UNI/v-deo.html Hope this helps. It's a slippery slope sometimes.
@@maxfliart Got it..! Thanks for replying.
A few have asked about my dethermalizers. Here's an article I wrote last year for the NFFS. Details the various ways of installing a DT. Hope to make a separate YT post with the photos in slide show format. hallmanstudio.com/DT.pdf
Do you use paper with dope when you build this aircraft??
What is a button DT?
Is this particular paint scheme modeled after the Polish volunteers who escapes to France before heading to England?
Here's the story behind the model. www.britmodeller.com/forums/index.php?/topic/234943171-caudron-c714c1-cyclone-azur-132/
I am sure you will address it's misgiving since your are True to the design.
I think each model design has different flight characteristics and trying to trim them all that they fly exactly the same might be a mistake let the plane fly the way it flies
8:20 what is that? And how you adjust the thrust once is already built?
That's a timer, or a DT (dethermalizer). The string and spring is attached to the stab, which pivots after the timer runs out. The tail or stab pivots to 45º and breaks it out of the thermal (hopefully) and prevents an out of sight (OOS) flight.
I would love to see in detail your DT set up and how it works. I google it found one that work with fire :O and then this other one that is probably more similar to yours ua-cam.com/video/GJglmxpl5nY/v-deo.html
Yeah, I stayed clear of the old fuse DTs. Yikes! Better suited for the desert or other nonflammable settings. I have quite a few photos of my DTs, so I could make a slide show of the process when time allows. There are a few approaches of popping up the stab with scale models. It all depends on the configuration.
That would be awesome. I would also love to see a video of your entire collection. To see how you storage or display them. You have so many beautiful models. Do you have some rubber powered ducted fan jets? Did you like the DRACO Bush Wilga? Quite famous these days. Maybe it could inspire a rubber powered one :)
Here's an article I wrote last year for the NFFS. Details the various ways of installing a DT. Hope to make a separate YT post with the photos in slide show format. hallmanstudio.com/DT.pdf
Did you change motors along the way?
I'm not 100% sure, but since I started with low winds, and since I use a blast tube once I get past 50%, I usually fly her on as many flights as the motor gives me.
@@maxfliart I guess I got my answer at the 24 min. mark. Patience, Dave.
@@daveb7811 Haha...yeah, I caught that. 15 flights or so with a few before filming started.
That rubber was toast though, as she'd climb much quicker with a fresh motor. Got lucky that day.
How did you apply the camouflage?
It was airbrushed over slightly raised cardboard shapes. Go to the 3 minute mark here. ua-cam.com/video/6AhPK6a3ElA/v-deo.html
@@maxfliart Thank you sir! As I’m finishing up my Dumas GeeBee Z I’m watching your videos as inspiration
@@maxfliart Wow I just saw that and it’s incredible! I’m not sure if you have a callsign yet but all I can think about is that your “The Machine!” A spiritual, in tune with these models machine! Bravo my friend, I hope achieve 1/10 of your skill
May I copy and post your Seafire build and fly videos to my site. I am not monetized, I just want to spread the joy of build and free-flight in this day of drones and instant gratification. Many thanks.
Sure thing. Thx.
What are the symptoms of a tired motor? When should it be changed?
If it doesn't break first, a weakening sense of power is what I'd see...but it's often hard to tell, as was seen on my trim session. The air is different on every flight, which can trick you into thinking the rubber is good, or bad... I usually change it after 2-3 max winds. Here I had 15 flights starting at 300 turns, up to 1980. But I always used a blast tube after 700 turns or so, just to be safe.
Thanks for that. Another if I may: How do you establish max winds? Do you take a sample from each batch and test it to destruction, or??
The motors I use, width and length, are somewhat similar for a number of models, so through experience you get to know what the max winds will be. But yes, the best way to find the max is to take a motor and wind the heck out of it. Not an exact science, since batches vary, and motors can at times blow at only 30% winds....but you can generally get an idea winding it off the model in a safer setting.
A little more nitro maybe?
I was gonna say, why don't you pick a day with no wind. And THEN, you spoil, my fun by saying that it's dead calm.
However, if it's dead calm, how come the plane landed so far from you,,, way past the ditch even?
I LOOKED THE CAUDRON UP ON UT. IT'S IRONIC THAT IT WAS THE WORST FAILURE EVER BUILT. NOT YOURS THOUGH!