RangeVideo
Wireless Video Solutions
What is the difference between long and short wing?
The long wing has a lower wing loading and glides better.
The long wing has a VNE (maximum speed) of 100kph. Above this the
RVJET can enter a turning dive with some loss of control, with proper
procedure it is easy and quick to regain control.
The short wing is more agile especially round the roll axis.
The short wing can fly a lot faster, we have flown in excess of 170kph with
full control authority.
The control balance between roll and pitch differs between long and short
wing.
RVJET – Q&A 1/2
What is reflex?
Reflex in the setup is basically how much elevator throw the model needs
to fly straight without diving. For the RVJET correct reflex is to have the
elevons angled up 6mm when controls are placed at neutral (ref: Setup).
How do I exit the turning dive if I’ve exceeded VNE of the long wing?
The procedure is simple and full control authority should be regained within
seconds if the following is done:
1.
Turn off any stabilisation or autopilot
2.
Turn off throttle
3.
Place controls in neutral
4.
Apply full up elevator
How do I secure the wings laterally if I don’t like tape?
There are several methods which all work great. The lateral forces is very
small and most methods will probably work. Instructions on how to do
these are available on public forums (rcgroups.com) or contact
Rangevideo for more information:
https://rangevideo.desk.com/
O-ring
– Using an O-ring to hold the wings together is uncomplicated and
reliable. For this you need wing joiners, either print yourself, purchase or
use something else to hold the O-ring, for example a nylon screw.
Friction
– If the friction in the CF tube is high enough nothing else is
needed.
Locking connector
– This locks wings in place as well as providing
connection to the wing servo. Suitable connector is for example the TA3
(tinyXLR).
Tape
– Many dislike this method but it really works well.
My parts were broken or faulty when they arrived, what should I do?
Contact Rangevideo support desk:
https://rangevideo.desk.com/
or
How do I launch the RVJET?
There are several ways. Important for all of these is to let the RVJET gain
speed until you give control inputs. Trying to correct an improper roll to
early might stall the wing.
1.
Use a bungee. The RVJET has an integrated bungee hook in the skid.
2.
Hand launch holding the wing. Give full power (>500W) and guide the
model up into the air. Do not throw as that might result in roll tendencies
that can’t be countered until some speed has been gained.
3.
Hand launch using the grip in the bottom skid. Turn up power, give a
hard straight throw and follow through with your hand to get it out of
the props way.
How do I land the RVJET?
As with most airplanes the RVJET should touchdown when stall speed is
reached. If you come in too fast this will result in a very long glide. If you
try to touchdown when going to fast the RVJET might bounce and spin.
How do I remove the motor?
We recommend using hex head screws when mounting the motor. It is
then easy to remove screws using a spherical head hex driver.
What motor suits the RVJET?
Diameter
<49mm
Mount holes CC 25x19-25mm
Prop size
≤14” (distance between fins is 375mm/14,8”)
Power
≥500W for easy launch (less is of course possible as well)
(As reference the RV Power pack has a 1200kV 3550 motor (>800W @ 3S)
with a 12x6” prop)
30th January 2015
RVJET Manual v2.0
The RVJET rolls too slow
Increase aileron throw. Especially the long wing tends to have a slower
roll rate. If you want very high roll rate, increase aileron throw and fly
using the short wing configuration.
