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funjet launching

Old 03-04-2011, 02:12 AM
  #26  
collective itch
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thanks, ill keep you informed...
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Old 03-05-2011, 01:05 AM
  #27  
iflyrc1012
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your welcome.
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Old 03-05-2011, 10:10 PM
  #28  
collective itch
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succesful maiden! bit tricky to launch, but got 4 packs through it, its ablast to fly. tracks really well
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Old 03-05-2011, 11:09 PM
  #29  
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Originally Posted by collective itch View Post
succesful maiden! bit tricky to launch, but got 4 packs through it, its ablast to fly. tracks really well
Way to go CI! Glad it went well.
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Old 03-06-2011, 02:59 AM
  #30  
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i'm glad it all worked out. it was too windy to fly here again today,and tommorrow it's supposed to rain all day.
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Old 03-06-2011, 05:08 AM
  #31  
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yeah man - lately i have been putting my FJ up first thing out - really gets the reflexes calibrated
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Old 04-04-2011, 12:33 PM
  #32  
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i won't have that problem with this funjet, used the edf unit and esc from my old squall hp, just waiting to recover from a recent op before trying, by the way if anyone is thinking about getting a squall, before you fly it glass cloth the whole of the air intake belly pan, as the foam that they are made from is really soft, and no matter how gentle the landing mine broke eveytime
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Old 04-05-2011, 01:01 AM
  #33  
iflyrc1012
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i'd be interested in a doppler reading on that fj. got any vids??
what do you think it will top out at?
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Old 04-05-2011, 01:39 AM
  #34  
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Looks like the new Stryker that is coming out has a lower mounted prop more similar to the funjet now so launching this might have some stories as well. I noticed on Parkzone's demo video of it he is launching it with zero throttle.
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Old 04-06-2011, 11:59 AM
  #35  
gazza3535
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Originally Posted by iflyrc1012 View Post
i'd be interested in a doppler reading on that fj. got any vids??
what do you think it will top out at?

I would'nt have a clue has to how to do a doppler reading, probabbly guessing about 80 with a bit of luck
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Old 04-06-2011, 11:54 PM
  #36  
iflyrc1012
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there is a thread somewhere on here named "doppler for dummies" if your interested
i think Chellie started it. with a video of your plane passing the camera, a doppler reading can be taken and the speed of the sound passing by the camera can be calculated pretty accurately. i think the program is free also.

Anyway, i think 80 mph is a fair estimate. e.d.f.'s don't pull as efficiently as a good ole' propeller but the sure don't bite like a prop either!!!
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Old 04-10-2011, 12:33 AM
  #37  
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here's a vid of a stryker wingtip toss. this puppy was waaaay outta trim and i still got it up and down without a scratch.... once properly trimmed, it was a pleasure to fly....

http://youtu.be/Rd4hWjw4MCs
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Old 04-12-2011, 12:09 AM
  #38  
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flew it today, flew well, a bit twitchy at full throttle, dialed in 50% expo, so should be better next time, i would guess at about 80/90 mph at full throttle downwind, well pleased
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Old 04-12-2011, 02:35 AM
  #39  
iflyrc1012
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80 to 90 is the strykers comfort zone. like any other airframe, they can be way over powered if the owner got the time and the dime.(and the eyes!!)
but they really shine at around 80 or so.. imho. post a vid if possible, and we'll have someone doppler it. 3 secs full bore past the camera each way, one up and one downwind run early in the flight(batteries)and no talking or moving the camera,your looking for a clean audio track...
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Old 04-20-2011, 07:28 AM
  #40  
melsailsnorth
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Default Funjet launch

Hi All- New to the forum and new to the FJ !! I've been flying it for the last few weeks since I got it with a Mega 16/15/3 with a 6x4 APC sport and a 3S 2200 bat. Launches are uneventful. Problem comes when I prop down and try and launch it with heavier 4S bat. With every attempt, by the time I can launch and get my right hand from the plane to the radio to give up elevator
the plan bulldozes. Any ideas what I'm doing wrong? Giving it at least 3/4 power and trims are set perfect. Am I just not quick enough or does someone have a better technique they can share? Thanks!
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Old 04-20-2011, 07:42 AM
  #41  
flydiver
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Set a switch for a bit of up elevator for launch. I use the gear switch. Only takes a tad of elevator to help. Then turn it off once going.

If 3/4 throttle doesn't work, what's wrong with full throttle?
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Old 04-20-2011, 08:54 AM
  #42  
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thanks for the reply! I'm just learning to program my DX6i. is that pretty straightforward to program the up elevator with the gear switch or other or is it possible with the DX6i? Thanks again
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Old 04-20-2011, 10:08 PM
  #43  
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Originally Posted by melsailsnorth View Post
thanks for the reply! I'm just learning to program my DX6i. is that pretty straightforward to program the up elevator with the gear switch or other or is it possible with the DX6i? Thanks again
I did this on my DX6i - just mixed the flap switch with the elevator and adjusted the flap position by the appropriate amount to get a couple of mm travel.

Dont forget to activate the trim setting in the mix or you will find only one elevon will move if you use the elevator trim.
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Old 04-21-2011, 02:49 AM
  #44  
iflyrc1012
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mel,
i hope your tossing it from the wing, not from under the prop.
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Old 04-21-2011, 04:31 AM
  #45  
melsailsnorth
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Default funjet launch

Thanks for the reply. In fact, I've tried tossing it both from the wing and from the center. When tossing it from the center I just make sure that I follow throw with the tossing motion to so that my hand is well clear by the time it goes by. Is the consensus that this is just an accident waiting to happen? I appreciate all the insight, and I've programed my spektrum receiver with some up elevator that I can easily switch off from the flaps after launch. Going to give it a try as soon as the weather permits. Any other suggestions for a newby are most welcome!! I have two current setups for my funjet, the heavy, fast, Mega setup, then the light, fast, MicroDan setup. So far I like the the light MicroDan setup a whole lot better. It won't break any records, but they have been known to approach three digits on 4s, and it's so darn light that the fun factor is just incredible. It's just amazing what you can do with these jets when they are built super light!! I'm sure I will switch over and get the ultra speed bug, but it's an interesting contrast.... Whole point (that I lost track of) was that it sure is an easy plane to launch with the 30gm MicroDan!!
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Old 06-11-2011, 11:54 PM
  #46  
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Before i launch my funjet can anyone please tell me what kinda paint to use to keep from melting my funjet so i can see the orientation just hate to kill her on the maiden al tho i've done dumber things! i just dont know if regular spray paint will destroy it or not and did'nt want to take the chance
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Old 06-12-2011, 12:55 AM
  #47  
iflyrc1012
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i'm not sure if spray paint will eat the funjet, but I AM SURE any water-based paint
will not eat it... try some acrylic air brush paints. they come in many colors, and i've used them for years, without any bad reactions to foam.. i use the Createx brand.
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Old 06-12-2011, 03:49 PM
  #48  
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I woke up this morn. went down stairs had my coffee then came back up stairs and fired the ole pc and low and behold i've won millions outta af-free-ka.. theres people who want to extends me theres a whole bank of blood thursty lawers that want to sue for me both ups and fed ex are saying parcel del. info needed.. i won the same online lotto ten years running and chemical hookups said every woman wants me and then there it was a message from wattflyers damn life is grand and glorious i really needed something to lift my spirits and that was it.. now if i can only go fly my FUNJET this morning.. heres hoping may all your mornings be as great as mine.... PEACE OUT-----------WILDTHAWN--------------------P.S. GOD BLESS YOU ONE AND ALL ----------------------------------------------------
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Old 06-14-2011, 03:10 AM
  #49  
WILDTHAWN
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so what degree of downthrust do you guys normaly run on the motor plate and where then do you set the elevons.. flush with the wing? or no and thats for general flying not launching i got that covered by a bungee launch and will your set up fly hands off level with out trimming
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Old 06-14-2011, 03:29 AM
  #50  
melsailsnorth
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Originally Posted by WILDTHAWN View Post
so what degree of downthrust do you guys normaly run on the motor plate and where then do you set the elevons.. flush with the wing? or no and thats for general flying not launching i got that covered by a bungee launch and will your set up fly hands off level with out trimming
Wow, I'm jealous. I'm still hand launching but that sounds like the way to go!!
I just converted my funjet over to a Turnigy 1600 watt outrunner and a 5s 2200 battery along with an ice 100amp esc. It's suppose to be able to easily make 150 mph but I'm afraid to hand launch it, as it is soooo heavy now. Weight is up over 2.2 pounds. Was your launch setup expensive? As to your question, I find I still have uneven elevons and I always attributed it to countering the prop pull (not the right term, I know). mel
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