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  • Bad Raven: I would'nt know but obviously you have had the experience.....  :evil
    June 17, 2018, 13:08:09
  • shawdreamer: his boyfriend couldnt wait..... :whistling:
    June 17, 2018, 11:58:37
  • hoverfly: Keckon, is usually the result of typing with your mouth full. :whistling:
    June 16, 2018, 16:37:24
  • Bad Raven: Keckon???  Where did THAT come from??
    June 16, 2018, 16:13:17
  • Bad Raven: I keckon you have bootleg Domino's................  And HF , I ALWAYS give a tip, it's "don't upset me"....
    June 16, 2018, 16:08:46
  • DarkButterfly: Not sure why they're different colours :laugh:
    June 16, 2018, 13:19:02
  • hoverfly: Blue boxes are used to indicate to the delivery bloke they won't get a tip at that house.. :laugh:
    June 16, 2018, 09:07:42
  • Bad Raven: And on another more important matter, wny is your domino's box red, ours are blue!!!   :blink :laugh:
    June 16, 2018, 05:47:01
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    June 15, 2018, 23:47:19
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    June 15, 2018, 22:41:37
  • shawdreamer: oh it'll fly...... like a piece of 5hit with a big arse motor attached..... but it'll fly :laugh:
    June 15, 2018, 22:25:24
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    June 15, 2018, 22:14:50
  • DarkButterfly: :smiley:
    June 15, 2018, 21:02:23
  • DarkButterfly: Need to get some electronics on this and see if it flies [link]
    June 15, 2018, 21:02:14
  • atomiclama: I used the solder ones [link] as I do't have a crimp tool and should be able to reuse the connector if required
    June 15, 2018, 14:50:33
  • VaNDAL_UK: Nice one. I'm gonna go for it. just looking for the SMA connectors with the crips as Ive had a few break at the root.
    June 15, 2018, 14:44:53
  • atomiclama: these are my first attempts, got better since then [link]
    June 15, 2018, 10:57:11
  • atomiclama: Yeah could've got mine cheaper but wanted it in reasonable time. Go for it, It's rewarding to see something you have made yourself.
    June 15, 2018, 10:54:38
  • VaNDAL_UK: atomiclama: I was pricing up the cable 0.08 copper wire and SMA connectors came out to about £15 and I could have made 5 meters worth of antennas!
    June 15, 2018, 10:31:48
  • hoverfly: Betaflight RC1...Interesting  if you go to the O.S.D  settings and then change the font  by lining up the icons in the correct precise order then hit  enter,...... It opens up the  O.C.D.  screen. :smiley:
    June 15, 2018, 09:01:13

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Author Topic: Multiplex FunJet Ultra - Upgraded  (Read 251 times)


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Multiplex FunJet Ultra - Upgraded
« on: January 09, 2018, 13:46:14 »

We have been assembling this Multiplex FunJet Ultra on and off over the past few months. The idea was to have something fast enough to be exciting to fly, yet docile and stable enough so that it could be flown even by a fairly inexperienced pilot.

The stock model could not usually be considered by a beginner, but once we installed the Eagle Tree Vector autopilot, the aircrafts character could be changed completely. With the ability to define the maximum bank/roll angles the pilot can’t be allowed to get into a situation where the model is overbanked/inverted etc. Another great feature is the 2D stabilized flight mode which enables the aircraft to return to level flight once the sticks are released, and the model will also hold its heading which is useful in windy conditions.

To top that we also have fitted a video camera and 5.8Ghz transmitter, as this model is most fun to fly through some FPV goggles. The Vector has a handy built in On Screen Display (OSD) which displays colour and is fully customizable. The OSD will report all sorts of very useful information to the pilot such as battery voltage, height, speed, distance from Home, flight modes, RSSI etc.

We had previously flown this model on the stock power setup, but the performance was mediocre and we wanted to create something more exciting. We decided to go with Multiplex’s recommended upgrade kit for this model and use a 4S battery to give it a bit of a boost!

The result of this, is a model that in straight and level flight will be drawing 55amps @ 110mph (no wind). The vertical performance is unlimited, and we have estimated to have around a 1.5/1 power to weight ratio. Model weight is 1.1kg with approximate thrust of 1.6kg. This was using a 4S battery on a APC-E 6x5.5 prop, with flight times averaging around 8-12 minutes.

An all-white model can be difficult to keep track of, especially something fast and nimble like this, however the RTH and Loiter feature of the Vector again gives you added security and piece of mind should you get completely disorientated. So the last thing to do is to give this model some colour, the kit came with stickers but we'd rather make it our own and spray it which we feel would also show up better. We've yet to make any progression here but I will post picture's once it's done, video's will also follow  ::)

If you or someone you know would like a model like this, but does not have the time or expertise to build it themselves and/or would like flying tuition, please feel free to contact us at Build Your Own Drone. We are based in north Hampshire, UK and are open Monday-Saturday. We have a selection of flying sights in and around Hampshire where we give flying tuition both during the week and at weekends.