User Info

 
 
Welcome, Guest. Please login or register.
Did you miss your activation email?

MultiRotorUK ShoutBox

Refresh History
  • hoverfly: beararsedcheek... :laugh:
    September 18, 2018, 18:42:15
  • Bad Raven: or bearreft, or bear left?
    September 17, 2018, 14:21:16
  • Bad Raven: or isnotherebear
    September 17, 2018, 14:20:30
  • Bad Raven: more like doesnotcarebear
    September 17, 2018, 14:20:07
  • Gav: carebear?
    September 17, 2018, 11:37:44
  • atomiclama: you there bear??
    September 15, 2018, 11:42:45
  • Reman: Got stuck in traffic yesterday. After an hour I started using my phone (And an OTG cable) to look through the media files on a keyring of my old USB sticks. Found one that had the entire run of "Firefly" on it. I got through 3 episodes before the traffic started moving again....... God, That really was an amazing show.
    September 14, 2018, 19:52:46
  • Gav: ok dude
    September 08, 2018, 16:40:59
  • mo_miah: Gav- if its a camera ship then TBS crossfire is definitely what you need, the FrSky has limited channels and telemetry options, TBS crossfire has much better features and more channels to control camera gimbals etc
    September 07, 2018, 11:53:01
  • Gav: mo miah - wanna swap from immertionRC UHF and try something else on my camera Ship.
    September 07, 2018, 11:25:40
  • DarkButterfly: My laminate arrived, the rebuild is coming along ~~
    September 06, 2018, 20:00:44
  • hoverfly: I coated a couple of Slipstreams  a few years ago  It stiffened up the wing nicely .On the down side although it prevented dings when i had an high speed"arrival" it left the resin cracked. and the glass lifted slightly.  Well stuck laminate stiffens the wing and is flexible..
    September 06, 2018, 18:26:13
  • DarkButterfly: I'm doing laminate, just put my order in for some, also got some balsa wood for the side parts, had to use a kitchen knife to seperate the foam from the busted wood
    September 05, 2018, 13:21:11
  • atomiclama: Thanks, can't decide on fibre glass or laminate. Like the idea of fibre for some reason, don't know why.
    September 05, 2018, 10:45:48
  • Bad Raven: Usng PolyC, yes
    September 05, 2018, 10:13:54
  • atomiclama: Anyone fibre glass coat their wings??
    September 05, 2018, 09:30:22
  • atomiclama: @DB well you obviously need a bigger motor and ESC, as flying slower is just not possible.  ::)
    September 05, 2018, 09:29:59
  • DarkButterfly: ~~
    September 05, 2018, 09:10:18
  • hoverfly: If you put a couple of coats of Eze Kote on the wing before the laminate it sticks really well ..no lifting.. :smiley:
    September 05, 2018, 08:47:37
  • DarkButterfly: If it makes you feel better, I’m going to completely refurbish my falcon Evo with new balsa sides and new laminate ~~
    September 04, 2018, 21:42:53

Who's Online

Theme Selection



Forum Default

Permanently

Author Topic: Multiplex FunJet Ultra - Upgraded  (Read 342 times)

Offline BYODMIKE

  • Trade Count: (0)
  • Jr. Member
  • **
  • Posts: 38
  • Liked: 6
  • Country: gb
Multiplex FunJet Ultra - Upgraded
« on: January 09, 2018, 13:46:14 »
Hello!

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.

 />