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HomeOff Topics › Talking of planks
02-08-2010 03:08 AM  8 years agoPost 21
GimbalFan (RIP)rrProfessor - Big Coppitt Key, FL - My Posts: All  Forum  Topic

When taking dual instruction several years ago from my father, he told me the rudder was the most important control surface on a airplane. I took that advice to heart when learning to fly RC airplanes.
I'll concede that for pretty, coordinated, low-bank turns rudder control is important, but he's starting (as he should) with a trainer, and trainers aren't as 'needy' about rudder input for coordinated turns (and to avoid tip stalls) like 3D planks and some gliders are, due in part to the dihedral in the main wing.

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02-08-2010 08:46 AM  8 years agoPost 22
shawmcky

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Isle of Wight,United Kingdom

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Found a field
That should be perfect for the first attempt,a guy flys a full size Tiger Cub from this field so should give me enough room for a few aborted take-offs and landings,my usual field is fine for helicopters but fenced off,not ideal for a first time probable "Kamikazi"style flight.Think i will let the aircraft donor trim and test fly first,just in case Will give me confidence if i see it fly first,only drawback is i wont be able to blame the plane if i crash.

Team- unbiased opinion.K.I.S.S principle upheld here

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02-08-2010 08:50 AM  8 years agoPost 23
shawmcky

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Isle of Wight,United Kingdom

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GimbalFan
That looks to be the very same trainer,are they also availiable in the States?

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02-08-2010 12:03 PM  8 years agoPost 24
RayJayJohnsonJr

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Midwest

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only drawback is i wont be able to blame the plane if i crash
Oh yes you can! If your plane is the same one as gimbal posted a picture of, you can most definitely blame the plane. You will find that if a plank is built like a brick, it will probably fly like one too. The Duraplane is advertised as a trainer when in fact it's 'almost' a good second airplane. But there are better choices all the way around. You heli experience will help a great deal, and the price was right. Right?

Have fun and let us know how it goes.

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02-08-2010 12:43 PM  8 years agoPost 25
shawmcky

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Isle of Wight,United Kingdom

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Ok
point taken, i will let you know how i get on.You cant get a better deal than free so i guess its worth a blast.

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02-08-2010 01:00 PM  8 years agoPost 26
SSN Pru

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Taxachusetts

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I'll concede that for pretty, coordinated, low-bank turns rudder control is important, but he's starting (as he should) with a trainer, and trainers aren't as 'needy' about rudder input for coordinated turns and to avoid tip stalls like 3D planks and some gliders are.
I agree but why learn bad habits from the get go?

Especially if he's already got a trained left thumb?
But I've always found that a trainer that's designed to fly will generally crash less than one that's designed to crash.
That's true of any aircraft, rotary wing or fixed.

If it's designed to fly it'll do it well, if it's designed to crash, it'll do it often.

Stupidity can be cured. Ignorance is for life!

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02-08-2010 08:18 PM  8 years agoPost 27
GimbalFan (RIP)

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Big Coppitt Key, FL

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That looks to be the very same trainer,are they also availiable in the States?
Don't know -- that's a pic I found during a brief search.
a trainer that's designed to fly will generally crash less than one that's designed to crash.
if it's designed to crash, it'll do it often.
Likely he's referring to the inherent (and desirable) instability of 3D planks (i.e. rearward CG, etc) -- but you probably already knew 'bout that, eh?

op-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-t

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02-09-2010 02:20 AM  8 years agoPost 28
Spitfire1

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Perth Australia

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After a couple of months messing around with 3s 55 mm ducted fan jets, I finally maidened my 70mm f16 last night.

It was so hard to fly I had to just try and get it down fast, broke the fuselage nearly in halve, the wings were just banking violently from left to right 90-180 degrees each way(sometimes inverted), did not feel had any control at all even with speed.

If the 70mm jets are this hard to fly, I put it into the same category as piroflips/chaos with a heli in difficulty, and Im just talking about simply keeping the wings level and being able to a banking turn.

Not sure where to go now, if there really so hard to fly not sure I want to fly jets anymore and thats the only reason I started all this in the first place.

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02-09-2010 03:36 AM  8 years agoPost 29
Spitfire1

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Perth Australia

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^
Update:

On inspection, one of my aileron servos is stripped at the center point and as soon as I put any pressure on it when its centered it goes crazy like a heli gyro servo.

My guess is what would have been happening(due to the way the servo is malfuntioning), is as long as I was banking or useing aileron the plane would seem normal, but as soon as I was not makeing any inputs trying to keep the wings level the right wing servo would have been going berzerk.

Maybe what I said about 70mm jet being harder that piroflips is not true after all, its still not done much for my confidence on the second attempt though.

My flying bud was saying its normal for f16 to behave in this manner, but I cant see how it would be possible for any human to control something as hard as what this felt like.

It would spin uncontrolably from left to right with little or no inputs from me.

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02-09-2010 03:43 AM  8 years agoPost 30
GimbalFan (RIP)

rrProfessor

Big Coppitt Key, FL

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one of my aileron servos is stripped at the center point and as soon as I put any pressure on it when its centered it goes crazy
Makes for an interesting day in the air, wot Wot?

op-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-t

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02-09-2010 04:05 AM  8 years agoPost 31
Spitfire1

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Perth Australia

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I just decided after a few seconds trying to fight it to just cut the throttle and try and bring it down wherever, runway grass I did not care, my freind was saying to just go faster and use smaller inputs

Ive been working up to this moment for a while now trying to get enough courage to fly my first decent jet, unfortunately it did not all pan out like I imagined it was going to.

I have as much money invested in this jet as a decent 500 size heli, so it was not good to see it broken nearly in two peices.

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02-09-2010 12:33 PM  8 years agoPost 32
SSN Pru

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Taxachusetts

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spitfire, how much experience do you have?

Stupidity can be cured. Ignorance is for life!

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02-10-2010 01:32 AM  8 years agoPost 33
Spitfire1

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Perth Australia

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Not very much at all with planes.
Ive had an f18 blue angels from Hobbyking that barely had enough power to fly, then I bought a Freewing f35 about 4 - 6 weeks ago which has gone realy well until I crashed a few days ago, Ive also have a foamie 1.4 mtr cessna from HK Ive had a couple of weeks.

And my RC Lander 70mm f16 is what im trying to fly now, I still dont know if it was the bad servo or just my flying ability, will know soon.

I could not keep the wings level, I was struggleing to keep it from rolling inverted.

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