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10-21-2010, 01:49 AM | #41 (permalink) |
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http://youtu.be/PYnqyaRb5cs?hd=1
This is my link to my video on youtube of my hooked up lama 400D. I also have other videos of me flying my lama 400D and Lama 3 |
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11-02-2010, 03:31 PM | #42 (permalink) |
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I just wanted to update you guys on my 400D. The brushless conversion is complete, and I have switched to the spektrum rx. I have no walkera electronics on the 400 at all. The heli is flying great, and no electrical problems as before. I have a little info on the lipo packs with the brushless motors. The same lipos that I was using with the stock brushed motor, I was flying for 8 1/2 minutes leaving around 20% in the 1600mAh battery. With the brushless setup using the same battery packs, I can fly 10 1/2 minutes leaving 20% left in the pack. Now I know I can stretch my flying time a couple minutes longer without hurting the lipo, but I like to leave around 20% in the pack.
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11-12-2010, 02:32 PM | #43 (permalink) |
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Here are a couple of pics of my 400D brushless conversion switched over to a Spektrum rx. I am working on another 400 switched to a Spektrum rx using brushed motors. I will post pics when it is complete.
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11-12-2010, 04:27 PM | #44 (permalink) |
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Nice W, what does it fly like? Which motors, esc and batteries are you using, also what are your flight times?
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11-15-2010, 08:14 PM | #45 (permalink) | |
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Quote:
20% in the 1600mAh pack. (flying in 38 degree temps) Here is one place to obtain these parts, but if one went with HK and the Turnigy motors, and esc's you may get by cheaper. http://yhst-94582326164583.ecommerce...e=nsearch.html http://www.xheli.com/30aspco.html http://www.xheli.com/901503.html http://www.dionysusdesign.com/produc...5d2d3ed27a8821 |
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11-15-2010, 09:11 PM | #46 (permalink) |
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Great! Thanks for the info!
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11-26-2010, 05:41 PM | #47 (permalink) |
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Last edited by whirlydude; 11-26-2010 at 07:52 PM.. |
11-28-2010, 07:28 PM | #48 (permalink) |
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Guys, instead of starting all new threads for every question about the 400D, why not just post in this thread? It's up to you, but this way we wouldn't have so many threads on the 400D.
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11-30-2010, 01:52 AM | #49 (permalink) | |
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Quote:
I already have a spare gyro and ar6100E (would work fine with my DX7) so I am wondering if I should just get the mixer and give it a shot lol... I just might get the BL setup together first and make sure all is well before switching to the spektrum rx... Last edited by momofx; 12-04-2010 at 07:21 PM.. |
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12-02-2010, 05:24 PM | #50 (permalink) |
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One thing I did with the long stock flybar was to cut 15mm off each end. (total 30mm) This helps if one has a hard landing, or has to slow down quickly. It prevents the flybar from swinging down and catching the lower set of blades. It will also make the heli a little more agile. I installed 2 sets of weights on each side that tightens with a M3 set screw. The weights I installed are for the E4 Beam Heli, and I think the weights for the Esky BOL heli may work also. (not 100% sure on that)
I am using the Xtreme extended head with inner shaft on both my 400's. It adds a +15mm between blades, and with the shorter flybar, I have had no blade strikes at all. |
12-14-2010, 04:40 PM | #51 (permalink) |
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Anyone have a 400D for sale? I am trying to help a guy find one, so if anyone wants to get rid of theirs, send me a pm. Thanks!
PS: does not have to be in working condition Last edited by whirlydude; 12-15-2010 at 07:34 AM.. |
12-19-2010, 12:06 PM | #52 (permalink) |
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Here are a couple of pictures of two parts on the 400 that I modified. The tiny screws on the metal lower head, and the screw going into the gear holding the inner shaft. The screw in the gear is not as bad as the tiny ones in the lower head, but I tapped both parts and installed M3 set screws. They are more beefier than the screws that came with the parts. Just be careful to not over tighten the screws, because the soft aluminum and brass strips easily. I also beefed up the screws in the gear for the outer shaft, but haven't taken a picture of that. The stock screws break very easily, causing the outer shaft gear, and the lower head to slip.
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12-30-2010, 08:13 PM | #53 (permalink) |
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Here are some pics of Skytec parts for the 400. The aluminum is much higher grade than what Walkera uses. The blade holders are a heavy duty 2 pieces design, which fits over pegs on the upper and lower rotor heads. This is a much better design, than the tiny pins going into the Walkera rotor heads. The rotor heads themselves are very nicely designed with M3 set screws to hold them secure, rather than the cheap screws used by Walkera that break very easily. The flybar is 2 pieces measuring 230mm overall with adjustable weights.The ends of the bars are threaded which screws into each side of the upper rotor head. The upper bearing housing fits over the outer shaft, and is secured by M3 set screws. It uses a heavy duty bearing, which the upper rotor heads sits on.
pic #1 both Skytec lower rotor heads - the left one uses pins with the stock blade holders - the right has the pegs to be used with the Skytec blade holders pic#2 left is the Walkera stock blade holder - right the Skytec 2 piece blade holder pic#3 upper rotor head sitting on the upper bearing housing pic#4 2 piece flybar pic#5 complete rotor assembly Last edited by whirlydude; 01-08-2011 at 02:06 PM.. |
01-08-2011, 02:24 PM | #54 (permalink) |
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I installed the complete Skytec rotor assembly on my brushless 400. The parts are quality made, and much heavier duty than the Walkera parts. I shortened the servo push rods, and the swashplate to lower blade holder pushrods, then lowered the lower rotor head to sit just above the collar. This increased the distance between the upper and lower rotor blades giving me more than the Xtreme extended inner shaft head did. I also had to trim off some on the ends of the lower rotor head pushrod guide in order for the head to clear the anti-rotation guide. The flybar is 75mm shorter than the stock flybar, but seems to fly very stable. The weights on the Skytec flybar are much heavier, which I believe aids in stabilizing the heli.
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01-09-2011, 05:37 AM | #55 (permalink) |
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Where did you buy the Skytec parts?
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01-09-2011, 06:50 AM | #56 (permalink) |
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http://www.helideluxe2010.ecrater.co...kera-lama400-d
Gary, How are you and the 400 getting along? Haven't heard much from you lately. |
01-10-2011, 05:28 AM | #58 (permalink) |
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Join Date: Sep 2010
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Holidays, houseguests and..if you can believe it, even cold for Florida. Also I spend 2 or 3 weeks a month working up in the Florida Panhandle doing contract work for Boeing. In the meantime, I've been keeping tabs on your mods, so maybe I'll do brushless conversion and everyting else at once. haven't flown much....had my blades bang together last time, but the Airys are more flexible and didn't break. I do have an SR I had purchased some time ago and have never flown and am thinking of selling.
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01-10-2011, 05:24 PM | #59 (permalink) |
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The more flexible the blades are the better chance of them clashing. I didn't have any problem with the stock blades clashing in the air, but when flying one time in doors I had to slow pretty fast, and I had the flybar come down and catch the blades. That's when I cut some off the flybar, and installed adjustable weights to prevent that from happening again. I also, as I posted in the earlier posts, went to the Xtreme extended inner shaft/head just to be on the safe side.
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01-11-2011, 06:46 AM | #60 (permalink) |
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OK...after some research ..it looks like..
Skytec upper rotor head assembly (flybar included) WA-7101 Skytec upper bearing housing WA-7102-L Skytec lower rotor head upgrade kit (blade grip included) WA-7126 Skytec blade grip for upper head WA-7107 Xtreme extended shaft. Is that correct? |
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