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funjet launching

Old 06-14-2011, 08:55 PM
  #51  
WILDTHAWN
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ok check it out i got a 30 foot bungee from hobbyking for $5.99 then i went to home depot and got two 1/4" hose barbs and two 3/16" i bolts that all cost about $5.00 then i soidered/sweat the i bolts in the hose barbs with a propane torch then inserted them in the ends of the bungee and zip tyed the bungee on to the hose barbs i next took a piece of 1"x3"x12" pine and screwed a 1"x4" piece of pvc pipe about the middle of the board and drilled a oblong hole in one end to put over the tent stake i use two stakes plant one and hook the i bolt over it and strech the bungee about 75 feet out to the next stake with the pedal on it i also used two keyrings with a piece of nylon twine tyed between them and one of them hooked to one of the i bolts and the other set over the pedal end on the second stake then hook the planes hook thru the first keyring and you got.. it just like downtown for under $25.00.. i have a launchpad made of pvc but i dont use it it takes up to much space and you dont really need it the plane rises so quick it dont drag on the ground so theres really no reason for having a launchpad other than looks oh yeah one more thing i got the larger bungee or the blue colored one its a perfect fit for the 1/4" hose barb. on my funjet i have the elevons flush with the wing and its spot on at the cog the tow hook is rite where the wing starts to come off the fuse i used a 1"x2"x1/8" ply and drilled a hole in it at a angle and used a left over piece of pushrod about a inch n a half long glued to the flat spot i sanded on the bottom of the funjet with white gorilla snot glue and it gives perfect launches everytime.. i just got to carry a extra hammer and visegrips to drive and pull the stakes.. i have less than a hour in putting this whole thing together and so long as you don get the soider all over the outside of the hose barbs it looks like it was a professinal built product.. one thing i cant stress enough is to check the bungee over from end to end every pull because a damaged bungee can do you some real damage if it gets loose.. the nice thing is you can say goodbye to torque roll cuz the bungee launches it about sixty miles per hour and before you launch you already have both hands on the sticks.. i can launch my fj all the way across the park with no power on and turn around and glide it back to me.. i wish i had a camera i'de sent the pic.. and just in case your interested hobbyking is out of bungees rite now there supost to be here at the end of the month but its a soultion to your kilo /2.2lb plane launching

Last edited by WILDTHAWN; 06-16-2011 at 03:14 AM.
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Old 06-14-2011, 10:25 PM
  #52  
iflyrc1012
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that has got to be the longest sentence i ever read...
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Old 06-15-2011, 02:02 AM
  #53  
WILDTHAWN
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period
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Old 06-15-2011, 02:26 AM
  #54  
iflyrc1012
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lol....
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Old 06-15-2011, 03:56 AM
  #55  
thomdoe
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ok that WAS funny ........ PERIOD ! .......
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Old 06-15-2011, 04:09 AM
  #56  
WILDTHAWN
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lets have a show of hands here bungee launch or hand launch. i said your hands not your finger.
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Old 06-15-2011, 04:19 AM
  #57  
thomdoe
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I go hand launch...... but I love the feel of the plane as it takes flight
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Old 06-15-2011, 01:03 PM
  #58  
josephcharles
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I have an ultra Funjet with a Mega 1625-3 and CC125 esc. It was clocked at 139mph from the side. I launch it straight into the wind at about 3/8's throttle. Lots of guys say to throw it and follow straight through. I do launch like that but I throw it a slight bit up around 20 deg and this keeps it from dropping to the ground before it gets lift and speed. When I first started launching it out I would throw it straight out and it would drop and a few times it hit the ground causing the prop addapter to pop off the bottom. While landing this ship I found that I had to actually steer the ailerons left and right to keep it level as it skipped like a stone across the field at 100mph. Happy landing's!!

Last edited by josephcharles; 06-15-2011 at 01:03 PM. Reason: level
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Old 06-16-2011, 03:12 AM
  #59  
WILDTHAWN
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1 bungee 2 hand lets here from the rest of ya
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Old 03-19-2017, 02:17 PM
  #60  
Ansih
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Default Its easy

I have flown a fun jet before
You can launch it by the wing and it was not a scene for mem, nothing great happerned
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Old 03-24-2017, 05:56 AM
  #61  
WyomingOutdoors
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I have a co-pilot launch mine. I have (had) two. One simple setup that has an old Stryker motor and esc in it that I've been flying for 5 years (flies in any kind of weather) clocked at a modest 109 (I removed the gyro after a few flights). The other was a 134mph 5S 1900W blur It takes off straight up! It survived exactly 6 flights before one of the ailerons came disconnected and it hit the frozen ground. I believe I have a video on one of my hard drives somewhere of the carnage . . . I'll search for it. I have a brand new kit still in the box that I've been planning to setup for fpv.

My maiden 5 years ago . ..





geez . . . just realized this post was from 6 yrs ago (still a fun plane though)!
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Old 03-26-2017, 07:26 AM
  #62  
Fishbonez
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Thats one ugly spud tossing that plane. I wonder if he has lost any more hair since then
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Old 06-28-2020, 07:14 PM
  #63  
Turbojoe
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Sorry for dusting off a really old thread but I just dusted off an old unfinished FunJet from my partially built airplane vault. I started glassing it with WBPU a long, LONG time ago and stopped to work on many more projects since. Now I think I want to finish it. BUT! in absolutely no way do I want the typical screaming high RPM small prop ear splitting noise of a "wing" aircraft. I want a "relatively" low rpm setup with a "relatively" large prop running a "relatively" sedate 3S 2200 mah LiPo. In other words CHEAP and QUIET as possible. So bottom line, what should be considered the absolute minimum wattage to fly this bird? Does the accepted for balsa 100 watts per pound apply here? I don't know as I don't normally do foam. I really couldn't give a rats ass about top speed. I'm most concerned about thrust and ease of climb out at launch and overall well mannered flight.

Joe
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Old 09-03-2020, 09:05 AM
  #64  
babylon5
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Hi, I belong to a group of flyer who is using mode 1 . This means my right stick controls the throttle and the banking (aileron ). My left stick controls the rudder and elevator.. Since I am right handed , I can use my nose to push the throttle stick and toss the models with my right hand ,(so the aircraft has some pre-thrust before a toss). Meanwhile my left hand is on the rudder and elevator stick. In that sense I have full control ready for pitch and rolls with my left, just pre-launch. In the fun jet , there is no rudder but at least I have the elevator control, at the least if something goes wrong. On the other hand mode 2, means your right hands are off the controls for pitch and rolls so the person is at the mercy of how good the toss. is and how quick fingers he can wrest the control stick?. If it is a maiden flight then you will face another unknown factors. Regarding getting nick by pusher prop. You can add a simple prop guard with a strong piano wire like a tail wheel, except the wire is bend like a skip. My friend ask me to change to mode 2 since the radio transmitter comes default mode 2. I don't see any advantage in mode 2 set up in the transmitter stick especially for hand toss aircraft . Do you see any advantage? I think mode 2 is better for flying a chopper or a drone.
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Old 09-04-2020, 09:53 AM
  #65  
r_kopka
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Originally Posted by babylon5 View Post
On the other hand mode 2, means your right hands are off the controls for pitch and rolls so the person is at the mercy of how good the toss. is and how quick fingers he can wrest the control stick?. If it is a maiden flight then you will face another unknown factors.
For maidens I prefer a foreign toss so I can react immediately on every unknown movement of the plane. Afterwards I can do it on my own with Mode2. With some experience the right hand is back at the controls so fast nothing will happen in the mean time if the toss is acceptable. If it goes down immediately, nothing will help.

I think mode 2 is better for flying a chopper or a drone.
I think, it is the only "right" way, as it is near a real plane . And I can easily fly with the right hand only and do something else with the left.

RK
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