Originally posted by Aros.MotionRC
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Official FlightLine F4U-1A Corsair 1600mm (63") Wingspan
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Originally posted by Aros.MotionRC View PostCongrats on the maiden Grover! Nice flight! Flown there a handful of times, I recognized it instantly. Not sure what you mean by flaps set way too much, my full setting is as far as the servo can handle! I LOVE seeing the flaps at darn near 90 on approach...
LOL
I was wanting to fly mine today but still waiting for the field to melt from all the snow we got. It's getting there...Tomorrow I will fly her for sure. Nicely done!
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Originally posted by Grover54 View Post
True, true - Maybe my flap issue is I need to mix in more elevator? I'll into that today!
1. When do you use flaps generally? Real planes use partial flaps when taking off. Some models do and some models don't. The real problem comes when preparing to land where high incident flap positions are used. Real planes deploy flaps as they begin to slow down in preparation for landing. They don't deploy flaps when at cruising speed. They wait till the plane's airspeed has slowed down some. If you drop flaps when the plane is still flying "at speed", of course the plane will become unsettled. Now, go to point #2 .......................
2. Deployment at too fast a rate. Slowing down the deployment will reduce or even eliminate any abrupt change in attitude. When the flaps suddenly and instantly drop, of course the plane will suddenly react. Real aircraft don't deploy their flaps instantaneously. Flaps go down gradually.
3. If you do #1 and #2 above ........................ IE, slow down a bit first and deploy flaps at a slower rate. Any slight unsettling can be dealt with easily and manually. As the plane slows down some more, you will likely find that this manually compensation is no longer needed as the plane then flies quite well and naturally with the flaps and without any compensation. Have you ever noticed that when you "mix" in some elevator compensation for flaps and you deploy them before slowing down and deploy them rapidly, that you may have cured the "ballooning" BUT as the plane slows down more as you make your approach, you need to apply more UP elevator now? That's because at the slower speeds and after the plane has had time to "get used to" flying with flaps, it doesn't need any elevator compensation.
In most cases of RC flying, there really is no "need" for doing this mix. The "need" is mostly due to the way the pilot flies.
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Originally posted by xviper View PostI have very few planes where I have done an elevator mix to compensate for flap "ballooning" or in some cases, flap diving. The unsettling of the plane when flaps are deployed is primarily a function of a couple of things.
1. When do you use flaps generally? Real planes use partial flaps when taking off. Some models do and some models don't. The real problem comes when preparing to land where high incident flap positions are used. Real planes deploy flaps as they begin to slow down in preparation for landing. They don't deploy flaps when at cruising speed. They wait till the plane's airspeed has slowed down some. If you drop flaps when the plane is still flying "at speed", of course the plane will become unsettled. Now, go to point #2 .......................
2. Deployment at too fast a rate. Slowing down the deployment will reduce or even eliminate any abrupt change in attitude. When the flaps suddenly and instantly drop, of course the plane will suddenly react. Real aircraft don't deploy their flaps instantaneously. Flaps go down gradually.
3. If you do #1 and #2 above ........................ IE, slow down a bit first and deploy flaps at a slower rate. Any slight unsettling can be dealt with easily and manually. As the plane slows down some more, you will likely find that this manually compensation is no longer needed as the plane then flies quite well and naturally with the flaps and without any compensation. Have you ever noticed that when you "mix" in some elevator compensation for flaps and you deploy them before slowing down and deploy them rapidly, that you may have cured the "ballooning" BUT as the plane slows down more as you make your approach, you need to apply more UP elevator now? That's because at the slower speeds and after the plane has had time to "get used to" flying with flaps, it doesn't need any elevator compensation.
In most cases of RC flying, there really is no "need" for doing this mix. The "need" is mostly due to the way the pilot flies.
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Landings...
I cannot stress enough that with any new airplane you must become intimate with how it stalls, clean and dirty.
Get The model high enough but not too high that you can’t see exactly what it’s doing and practice stalling it. It’s nothing at all like a full size airplane where you learn to feel the stall progress in the seat of your pants.
All we have in Rc is our eyes in place of our asses. Only your eyes to rely on, no airspeed indicator, no AOA gage, just eyes. Not easy to master at all...
Couple that with the dozens upon dozens of different type models most of us fly and that’s amazing stuff what we do.
If you alter settings with flap and elevator, see what the model does on a practice run high up.
With any new airplane do not just fly around for 5-10 minutes for the sake of a video, take off, trim it out, start the stall practice runs then see how slow you can fly without stalling it clean or dirty.
Remember, you are a test pilot at this point! And...
That is a real maiden flight!
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Originally posted by Grover54 View Post
Excellent points and well taken. I'm guessing my speed was too high to get the correct result from experimenting. I do have the flaps set to deploy very slowly so I got that right. :) Thanks for your inputs. As always this forum has a tremendous amount of good and solid information! :Cool:
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Originally posted by Ole-Timer View PostLandings...
I cannot stress enough that with any new airplane you must become intimate with how it stalls, clean and dirty.
Get The model high enough but not too high that you can’t see exactly what it’s doing and practice stalling it. It’s nothing at all like a full size airplane where you learn to feel the stall progress in the seat of your pants.
All we have in Rc is our eyes in place of our asses. Only your eyes to rely on, no airspeed indicator, no AOA gage, just eyes. Not easy to master at all...
Couple that with the dozens upon dozens of different type models most of us fly and that’s amazing stuff what we do.
If you alter settings with flap and elevator, see what the model does on a practice run high up.
With any new airplane do not just fly around for 5-10 minutes for the sake of a video, take off, trim it out, start the stall practice runs then see how slow you can fly without stalling it clean or dirty.
Remember, you are a test pilot at this point! And...
That is a real maiden flight!
My big FMS Corsair, on the other hand, loves full flaps and as already pointed out, looks so cool with them down. I will presume that my FL Corsair will be very similar.
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I’m nearing completion of Gus’s Gopher. Special thanks to “LB” as without his initial input and 3DP cockpit, this would be just another plain Jane warbird of mine!:Cool:Thanks LB!
3 3/4 inch Robart tires, 3DP cockpit, Warbird Pilot, canopy repaint, engine mods, gun port mods, fuel caps with pull for main tank battery access, Callie Graphics... a bit more weathering and such as time permits but it’s 90% and airworthy now.
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[QUOTE=Ole-Timer;n182675]I’m nearing completion of Gus’s Gopher. Special thanks to “LB” as without his initial input and 3DP cockpit, this would be just another plain Jane warbird of mine!:Cool:Thanks LB! 3 3/4 inch Robart tires, 3DP cockpit, Warbird Pilot, canopy repaint, engine mods, gun port mods, fuel caps with pull for main tank battery access, Callie Graphics... a bit more weathering and such as time permits but it’s 90% and airworthy now.[Quote]
O-T, WOW! She's Outstanding, Sir. Love the subtleness and the 'mottled' areas (Salt Technique?). Though no thanks necessary as I just like what you do. Bravo Zulu. Best, LBI solemnly swear to "over-celebrate" the smallest of victories.~Lucky B*st*rd~
You'll never be good at something unless you're willing to suck at it first.~Anonymous~
AMA#116446
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Even Corsairs that remained stateside suffered countless oily boot scuff marks to the inboard wings from maintenance crews.
I used an old sea sponge from the craft store and a pallet of grey’s to daub that on. Best thing I could think of :Confused:
There’s a lot of fading different hue’s of blue n grey in this model to simulate sun fade all over it.
I’m ready to do some dry brushing here n there to help blend some areas and add a bit more tones.
After that some baby powder coral dust !
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Great work OT! Really like the subtle areas and the scuff marks is a unique and nice touch.
As for flaps, I agree with xviper, I always hit mine in two stages and never at cruising...With this model, no elevator mix is needed...Simply decrease throttle when setting up for the final, hit the first stage and then kick in full flaps on final and even with them as full as they can possibly be, there is absolutely no ballooning effect. Also, I always have my flaps on a realistic slow speed via my radio (5-6s on my iX12) to help avoid any undesirable pitch tendencies.My YouTube RC videos:
https://www.youtube.com/@toddbreda
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Originally posted by Grover54 View PostAros MRC - then come up here Cowboy as my guest! Flying starts at 10:00 but it's a bit cold then so I wait till around 1:00. Look me up! I'm the "Hoss" with the cowboy hat! LOLLOL
My YouTube RC videos:
https://www.youtube.com/@toddbreda
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Originally posted by Aros.MotionRC View Post
Thanks, one weekend I will take you up on that! I attempted this morning but it's too windy to fly. Been windy here all weekend...Now I am at home in Honey Do Hell. :Scared:
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The mottled area that simulates foot scuffing was done with Model Master enamel paint. When you use a technique like this you are able to achieve a variety of texture, from nothing to rough. If you want a textured surface go heavy on the paint, but in this case I did the opposite, picked up a small load of paint on the sponge then work it over the pallet to achieve the correct color and work most of the paint off so when the sponge goes to the wing it’s barely wet and doesn’t build up a textured surface, just adds a thin coat of color. With a little practice it’s very easy to do.
Yes, I’d filled in the flap hole with foam board and some 222 lite. That was a big enough boo boo it had to go.
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Originally posted by xviper View PostVery true! Contrary to what one might naturally surmise, using high incident flaps may also require keeping some throttle going as it can be very deceptive how slow flaps can make a plane go. Sometimes, so slow that it will stall and when landing, the plane is getting closer to the ground - a very bad time to stall. Then, some planes don't like flaps at all and need quite a bit of throttle to NOT stall. The Eflite Cirrus was one of those planes. I gave up on the flaps and just left the flaps alone the whole flight.
My big FMS Corsair, on the other hand, loves full flaps and as already pointed out, looks so cool with them down. I will presume that my FL Corsair will be very similar.
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Originally posted by Ole-Timer View PostThe mottled area that simulates foot scuffing was done with Model Master enamel paint. When you use a technique like this you are able to achieve a variety of texture, from nothing to rough. If you want a textured surface go heavy on the paint, but in this case I did the opposite, picked up a small load of paint on the sponge then work it over the pallet to achieve the correct color and work most of the paint off so when the sponge goes to the wing it’s barely wet and doesn’t build up a textured surface, just adds a thin coat of color. With a little practice it’s very easy to do.
Yes, I’d filled in the flap hole with foam board and some 222 lite. That was a big enough boo boo it had to go.
Before sanding
After sanding
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Love coming back to this thread after a few days and catching up on peoples progress. Ole-Timer, looks amazing, the early bird cage version would have been my personal model choice, for the weathering potential alone, and you've done a stunning job sir, thank you for sharing.
We had a break in the weather recently, unusually hot and calm for March! It did mean however I was able to get out and fly the Corsair, then shoot video too (see below). Obviously she's a sweetheart in the air (better than the 1.6m Spit and and almost as good as the F7F, the lack of torque being the only advantage) but on the ground just as much fun as you should see.
There are some in-flight still's I'll post a little later too.
Stuart.
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