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Old 06-20-2010, 04:34 PM   #1
smokejohnson
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Default ASSASSIN, 36", EPP, Finless, Combat Wing

This is the Assassin that the Utah Flyers use for Uncivil War. I'm not even going to try and duplicate all the info in the RCG thread so I will just give the link.

http://www.rcgroups.com/forums/showthread.php?t=1052384

I like to look at directions as a general guide line, I've been doing it long enough now that I have my own ways of doing things.

Some of the things that I did different than Lee is because that is what I have on hand. Like using duct tape instead of Scotch Extreme tape...that stuff is expensive. To get my tape to stick to the EPP I use 3M45 spray adhesive. Cheaper than the 77 and for me it works just as well.

I went ahead and covered the elevons but the wing only has the laminate on it right now. I wanted to work out my CG and make my equipment holes before the Econokote. I made a small hole at 6.25 back from the nose and hot glued a string in, I use it to check the balance. Right now it sits a little tail heavy unless I add a half ounce of weight to the nose and then it sits level. That's close enough to go ahead and finish covering it. The covering will change the balance some I am sure.


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Old 06-20-2010, 06:07 PM   #2
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I cut CF toe into my wings and around the outside imbeded 1/4" instead of the closeline they use, works great! do you need any? bubsteve

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Old 06-20-2010, 07:03 PM   #3
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I still have some left over from when you sent me some Steve, thanks though. I didn't think of using the tow, that would have been an excellent use for it.

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Old 06-20-2010, 08:46 PM   #4
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Originally Posted by smokejohnson View Post
I still have some left over from when you sent me some Steve, thanks though. I didn't think of using the tow, that would have been an excellent use for it.
We'll see how strong you got it when I fly though you at SEFF next year!
bubsteve

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Old 06-20-2010, 09:01 PM   #5
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LOL I would give anything to make it to SEFF but I doubt that will happen anytime soon. Maybe someday when the kids are a little older.

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Old 06-20-2010, 09:49 PM   #6
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I built a UFO Assassin pretty much stock and I can attest to how TOUGH they are. Mine once went in nose-down so hard it bounced 3' in the air. The pilot (not me) was so terrified he didn't shut down the motor and it went in a second time still at full throttle. It suffered a stripped servo gear (the HXT-900's I had on it initially won't take that kind of abuse) but was flying again the next day.

The absence of wing tiplets enhances the durability by not being there to get broken off. It does have a little wobble in the yaw axis but you get used to seeing it wagging along in the air, especially when exiting a sharp turn.

I power mine with a re-wound 2409-18T, mostly on 2S. I rewound with a single heavy strand and the motor seems stronger and runs cooler. I like long flights so I use a 2S 1750mAh Rhino. I really enjoy flying it!
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Old 06-20-2010, 11:38 PM   #7
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I am going to start off with a HeadsUp Power Up 400 Sport with an 8x6 prop. I will be using a 3S 1300mah battery.

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Old 06-21-2010, 12:09 AM   #8
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Same set-up on ours with a 400 outie & 8/5 prop ,,like a bat outta,,,,,, I've flown MustangMans as well an she really scoots on two cell's! bubsteve

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Old 06-21-2010, 10:57 PM   #9
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I hope that you don't mind me jumping in here but I love my Assassin. I used the recommended motor and prop. I did not cover with the laminate just Ultracote. I can attest to how stout this plane is, bad launch very bad. Popped the lipo out but that was it.

Wonder what a 450 motor would do? Problem is the KV is only 950, I think that may be way to slow.
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Old 06-22-2010, 01:23 AM   #10
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No problem Tin Man, post away. I'm not sure if a 450 would be too much weight or not. I actually cut a little material out of the way so I could slide the motor forward another half inch or so to help it balance. If I had the money right now I would probably go with the recommended set up like you are running but for now I will just use what I have.

Edit: Post some pics if you have'em Tin Man

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Old 06-22-2010, 02:28 AM   #11
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Here are two shots of my Assassin. Stock motor was under $7.00, FC 28-12 Brushless Outrunner 1534kv, turning the recommended 7x6 prop. I used two HS 82MG servos, a 25 amp Sentry ESC and an AR500 receiver.

I am guessing that this with this motor it runs about 40 to 45 MPH, I am a poor judge of speed in the air Would love to get just a bit more speed but not sure what motor would be a good fit. It does have good vertical performance a bit more in that department would be nice too.


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Old 06-22-2010, 02:30 AM   #12
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Looks great Tin Man.

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Old 06-23-2010, 05:57 PM   #13
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Subscribed James.
I have the Eflite park 370 1300kv on ine it still flies a little weird wants to do death spirals on sharp control inputs and I have the throws cut down. moved the batt forward 9mm epp thickness still seems tail heavy. We'll get together when I get back home James and see if we can work out the issue I am having maybe before you try a maiden with yours and get this issue resolved.

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Old 06-23-2010, 10:04 PM   #14
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Sounds like a plan Jack. When will you be back?

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Old 06-25-2010, 10:35 PM   #15
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Got back about 2:00pm today.

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Old 06-25-2010, 10:40 PM   #16
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Wanna bring it by this evening? I can come over there but I iwll have to wait for Sheri to get off work around 7.

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Old 06-25-2010, 11:32 PM   #17
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Let me see, just got finished mowing the back yard. After driving in from Amarillo today, and, that on top of driving from Prescott to Amarillo yesterday. So, may just wait till tomorrow morning and see if I wake up as early as I have all week. If so I'll see you in the morning at the Unclub. I'll call ya L8R.

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Old 06-25-2010, 11:37 PM   #18
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LOL yeah I didn't think about that, I bet you do need some rest. Just give me a call tomorrow if I don't see you at the Unclub.

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Old 06-25-2010, 11:47 PM   #19
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Roger, Wilco, and all that stuff.

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Old 06-26-2010, 06:26 PM   #20
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Sorry about this morning Jack. That was the first time I have ever been in a death spiral and I just couldn't get it to stop. I have an extra servo for ya, I'll bring it to you later today.

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Old 06-26-2010, 06:35 PM   #21
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You Outie mounts bent forward,, thats what mine did the last three times I hit to hard, You can bend it back so your downthrust is right again, they can get a might squirly when the mount does that, it works!bubsteve

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Old 06-26-2010, 06:36 PM   #22
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Originally Posted by smokejohnson View Post
Sorry about this morning Jack. That was the first time I have ever been in a death spiral and I just couldn't get it to stop. I have an extra servo for ya, I'll bring it to you later today.
There's more to this story I'll wager...
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Old 06-26-2010, 06:44 PM   #23
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Flim at 11:00??? bubsteve

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Old 06-26-2010, 06:51 PM   #24
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Rut-Roe!! bubsteve


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Old 06-26-2010, 07:08 PM   #25
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LOL no film but it would have definitely been news worthy . I started to lose control about 1 mistake high and stalled it. It entered into a spin falling fast and I was never able to regain control. It landed in the middle of the street...hard. I know at least one of the servos was stripped, maybe both. Other than that I think it just bounced.

I'm convinced now I want some metal gears. I think I'm going to get some of these http://www.headsuprc.com/servlet/the-1499/SERVO--dsh--14g-TP/Detail.

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