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Post by flydiver on Jul 28, 2010 17:38:22 GMT 1
Man, have you left yourself open for a drubbing! Months building a plane, creating significant 'cool factor' and messing up on basics. But, as they are wont to do, the plane itself reminds us of those kind of simple oversights.
Put some bullets in. You'll be glad you did.
Suggest you don't order from HK this time.
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Post by john66 on Jul 28, 2010 18:09:49 GMT 1
Two words Dill Scho ..........., Oh Nicks already said them! Come come, from the man who explains exponential to me!
Mind you this coming from a man who flew with his wing on back to front, I refer to myself! ;D
Sorry to hear of your dumb a$$ error, luckily doesnt sound to bad. Had you reinforced your cowl?
I only smashed my first cowl to pieces my gaffa taped reinforced replacement has taken loads of nose dives and survived. I did it in lots of strips keeping clear of all holes, when I did it to my bruvs one I did it from the inside for prettyness sake.
Once again sorry to hear of your, ahem, accident!
John
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Post by john66 on Jul 28, 2010 18:57:26 GMT 1
Anyway far be it for me to make fun of your error, after all we all make mistakes. You helped me, I will therefore help you. The direction the plane will travel in relation to elevator movement  I hope this makes sense. John |
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Post by killioughtta on Jul 28, 2010 22:15:27 GMT 1
Two words. "elevator reversal" Do you NOT listen to (or read) advice? If there's ONE thing I learned from this thread... Unfortunately, I've just discovered a problem with my ESC installation. I extended the ESC power wires to go all the way to the battery box, so I can't actually disconnect the ESC from the plane without unsoldering the battery connector. As those wires go through the hole in the firewall, it's going to make replacing the firewall somewhat difficult. Bullet connectors or more deans...  |
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Post by killioughtta on Jul 28, 2010 22:17:19 GMT 1
That looks like what dill's old SC was doing after he lost it. But one thing's missing: a couple of guys on top.... |
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Post by Dillzio on Jul 28, 2010 23:16:17 GMT 1
Thanks for the 'peer support' guys, boy am I kicking myself. I can't believe I was specifically warned about doing that too, boy am I kicking myself! I guess elevator controls seem sort of counter intuitive, you think to go up, you want to create drag underneath to push the plane up. I guess I overlooked that when the tail goes up, the plane goes down :-(. I noticed the ailerons were reversed and fixed that, but I overlooked the most basic control surface of all.
I hadn't reinforced the cowl, hence why it is now minced up good. I'll be reinforcing the new cowl with cloth-tape before I put it on, bright yellow cloth tape for aesthetics :-) . I've put a slight bend in the prop shaft too, but I have a spare. Considering how much force it takes to bend that shaft (as I discovered when I tried to bend it back), I'm lucky I didn't damage the motor too. Weather permitting, I might get to take it for another flight this evening.
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Post by flydiver on Jul 29, 2010 1:19:26 GMT 1
I've put a slight bend in the prop shaft too, but I have a spare. Considering how much force it takes to bend that shaft (as I discovered when I tried to bend it back), And I hear ALL THE TIME, "My plane did a prop plant from 200 feet, nothing hurt at all. I dusted it off and put it back in the air." I've tried to straighten shafts where I've put most of my body weight into it and been unsuccessful. People wonder why their landing gear bends. They have no idea of the forces behind some of these abrupt changes in momentum. The heavier you make it, the harder it falls. |
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Post by Dillzio on Jul 29, 2010 6:55:19 GMT 1
And I hear ALL THE TIME, "My plane did a prop plant from 200 feet, nothing hurt at all. I dusted it off and put it back in the air. Yeah, those people are either just overly optimistic, or just plain blind. My bend prop shaft is probably still useable, but I'll retire it for now. I'll just hold on to it for a spare part in case I bend another one before my replacements arrive from hobbyking. I got around my ESC problem by snapping the firewall just below where the ESC goes through with needle nosed plyers. That allowed me to bend it open enough to squeeze the ESC through the hole, then I glued the snapped area with superglue. If I have to do it again though I like the idea of just putting a Deans connector on there. I've just swapped over to XT60 plugs so I have PLENTY of deans laying around. |
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Post by ginginho on Jul 29, 2010 9:26:38 GMT 1
Anyway far be it for me to make fun of your error, after all we all make mistakes. You helped me, I will therefore help you. The direction the plane will travel in relation to elevator movement I hope this makes sense. John And just for anyone who stumbles across this sad tale in the future, there is a simple way of understanding how control surfaces work. When a control surface deflects, the air flow over it pushes the surface it's attached to in the opposite direction. Hence an elevator that deflects up pushes the tail down, a rudder that deflects right pushes the tail to the left, and an aileron deflecting up will push a wing down and vice versa. This principle is also applicable to elevon configurations. Understand this and you will not suffer the ignominy/frustration* that "Hard-Head Dylan" (nice one Erwin  has just experienced. * = Select as appropriate. P.S. Canards and other exotic surfaces not included for simplicity and to not induce complications. |
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Post by Dillzio on Jul 29, 2010 10:06:58 GMT 1
Understand this and you will not suffer the ignominy/frustration* that "Hard-Head Dylan" (nice one Erwin has just experienced. * = Select as appropriate. P.S. Canards and other exotic surfaces not included for simplicity and to not induce complications. 'hard head dylan' nice one erwin? Erwin never called me that, did he? I can't say I appreciate the nickname, but after I dubbed you 'Captain Killjoy' I suppose I had it coming.  I had to look up what 'ignominy' meant, but it's spot on! |
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Post by ginginho on Jul 29, 2010 12:14:27 GMT 1
Understand this and you will not suffer the ignominy/frustration* that "Hard-Head Dylan" (nice one Erwin has just experienced. * = Select as appropriate. P.S. Canards and other exotic surfaces not included for simplicity and to not induce complications. 'hard head dylan' nice one erwin? Erwin never called me that, did he? I'm afraid he did... Two words. "elevator reversal" Do you NOT listen to (or read) advice? If there's ONE thing I learned from this thread... I can't say I appreciate the nickname, but after I dubbed you 'Captain Killjoy' I suppose I had it coming. I had to look up what 'ignominy' meant, but it's spot on! There are plenty of other nicknames that could be aired...  I'm pleased my English is up to scratch! ;D |
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Post by Dillzio on Jul 29, 2010 14:09:42 GMT 1
'hard head dylan' nice one erwin? Erwin never called me that, did he? I'm afraid he did... Ah Crap, he did too, I missed that. d**n you Erwin!!!  |
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Post by flydiver on Jul 29, 2010 15:09:27 GMT 1
[. P.S. Canards and other exotic surfaces not included for simplicity and to not induce complications. Yeah, a V-tail can make you crazy. I try to reason it out and it still doesn't make sense. I look at a diagram. |
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Post by Dillzio on Sept 6, 2010 10:25:42 GMT 1
Hi Gang,
I the wind finally died down here in Adelaide, which was somewhat strange since it was blowing a gail all weekend to the point that it brought down trees and many parts of Adelaide were left without power.
Anyway, I just took it up for the first flight, and it was absolutely spectacular. I've been spending a fair bit of time on the simulator lately and it was much quicker, and easier to fly than most of the models on there.
I took an on board video of the flight, but for some unfortunate reason the video recording barely went two minutes. Dreadful shame too, cos I landed it three times and all three were perfect, and now you all miss out on my beaming face and smug comments I made to the camera. The last two landings I even used the flaps and the plane just floated along the ground as if it were weightless. I also found the navlights worked great! The only hiccup was that the rudder was reversed, but on the few times I needed rudder I managed to remember to reverse my inputs.
After wrapping the cowl in yellow duct-tape, the only weight I needed to add to correct the CG was a 10c piece taped to the nose, but next flight i'm going to try going without it.
Here's the in flight video:
;D
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Post by Dillzio on Sept 6, 2010 12:34:52 GMT 1
Thanks John!
I didn't use a servo slow down on the flaps (whatever that is). Just flip the switch on the Tx and the flaps go down. My first landing I did without the flaps and while I can't really say the flaps were needed, I wouldn't call them a waste of time either. I must have totally fluked the amount of elevator I mixed in with them though, cos upon lowering the flaps it didn't affect the plane's attitude at all!
I'll have to try them out a few more times before I really get a feel for it, but it almost seemed like it needed more runway to come to a stop with the flaps down because the plane ran along the ground as if it was almost weightless, but that may have also been contributed to because I gave it full up elevator to try to prevent it from nosing over. The cub also seemed to glide forever so all the landings were done dead stick.
All in all I'm one happy chappy :-)
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has just experienced.
