The Aresti 108 flew yesterday at the Bopeep Hill in the downs
near Lewes, East Sussex . Conditions were much better
than the maiden just a few days ago and around 15-20mph. Only its 2nd
outing it was flown by 5 pilots including Greg Lewis, who nonchalantly handed
around the transmitter! Despite it’s size it’s actually very easy to fly with no
vices. The energy retention just keeps it going and she looks beautiful carving
big shapes. The roll rate is outstanding especially for a big plane and it was
even ballasted up with 1kg of fuse provision (12 slugs of 19mm, ¾’’, 35mm long
brass) making a total flying weight of approx 4.8kg. There’s approx another
1.4kg to go in the wings with a 610mm long 19mm round brass bar that wasn’t
felt necessary.
Here it is, a very honest unadulterated raw video shot with
Gro Pro on Greg’s head. You’ll get an idea of what it did but what isn’t conveyed
so well is the sheer size and presence not only of the airframe but those loops
and bunts are enormous!
The airframe shows no sign of stress, which is as well as
the joiner and spars are enormous and because the wing is thick and has a broad
chord, it’s not bendy or twisty. The fuse is also very strong especially along
the boom fin juncture with a full carbon except for the canopy area.
Proto radio tray built mostly in 6mm ply |
Production one will be moulded and factory fitted, but same principle and will add a huge amount of strength to the nose area. |
One of the features of the Aresti design is the 2 piece tail
and elevator design. The tails are very firmly held in place and no wobbly tail
plane as you’ll find in most all moving tail designs but more importantly pitch
control needs very little deflection only +/-8mm with 40% expo. This all
contributes to the energy retention and efficiency that the Aresti 108 is
showing. Aside from the deep sides it’s actually a very clean design. Even with
full size servos in the wing the covers are flush!
It clearly doesn’t need a gale or epic hill to do this and
looks so smooth it’s one of those rare planes that can make your flying look
better! The guys had a blast, what more could we have asked for so early on in
prototype testing. I have a feeling we are not far off, just minor installation
details to make the build pain free and linkages optimised. This is going to be
very easy to put together and thoroughly complete!
Aresti family! |
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