Hanger 9 Funtana X50 Electric Conversion Page
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The First Flight
By Chris Brew |
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With the conversion on the Funtana complete
and me having taken some time off work I figured today
would be as good a day as any to try her out. It was Thursday afternoon and it was a lovely day for flying,
nice blue sky and no wind. An educated guess told me that I
would not be alone at the club strip, so I loaded the Funtana in
the car and headed off to the field.
On arrival at the field it was obvious that flying was going to
be out of the question, the wind was very strong and quite
gusty. Frank was on the tractor mowing the strip and Guy was
sitting in his car watching. According to Guy he had been here
for a couple of hours and the wind had not let up in that time.
As I was here I decided to get the Funtana out and do a range
check of the radio gear, I assembled the model and
wandered off across the field, transmitter in hand leaving Guy
watching the model for me. All checked out ok. By this time
Frank had finished mowing and wandered over to see what was happening.
A conversation started
about the size of the Funtana's prop and the ground clearance
problems I may run into on our grass strip. This was something
that had been on my mind as I only had about 1 1/2in clearance
on concrete with the tail up. By this time the wind had dropped
quite a lot, so the decision was made to make a couple of high
speed taxi runs down one of the strips adjoining taxiways, as
the strip was not flyable due to the large clumps of freshly mown
grass covering it. The first run went of without a hitch, no clearance
problems, so I spun the Funtana around and started the second
run, this time within about 10ft the model leapt into the air,
WOPS that wasn't supposed to happen, a quick decision had to be
made as the fence was looming up very quickly, I pulled back on
the elevator stick and rose up over the fence and off she went.
I settled into a couple of short circuits, all seemed ok. It was
about this time that the wind decided to make its presence felt
again making flying very uncomfortable, the Funtana was struggling
to make headway into the strong gusting winds and after uncontrollably
knife edging it down the length of the strip and saving the
plane hitting the ground a couple of times I started looking
around for somewhere safe to put her down. As the runway wasn't
an option I found an area off to the side of the strip that
looked smooth enough, grass was a little long but shouldn't be a
problem., I just had to get there in a strong head wind. Lining
the spot up I flew her in under a bit of power and put the plane
down tearing the undercarriage and mount out of the fuselage, no
problem this is only the third time I will have repaired the undercarriage.
As I walked up to the model I notice it was beeping continuously
and the control surfaces were all twitching. Strange I thought,
must have damaged the something else. I picked up the model and
started to walk back to my car with it still twitching away.
Frank pulled up on the tractor and I was showing him what was
happening, I sat the plane down on its nose and almost immediately
the motor jumped into life and jammed the prop up in the long
grass, smoke began to pour out from the cowl followed by flames.
I lifted the model up out of the grass, yelling out to Guy
to get the fire extinguisher out I started to run towards Guy
with model in tow. It was about now that I notice that My transmitter
was turned off, how I don't know, I don't remember turning it
off. I can only guess that I must have turned it off as soon as
the Funtana hit the ground, makes sense that's why the model was
beeping and twitching, looking for a signal.
By the time I reached Guy the flames had gone out there was
still plenty of thick smoke, so Guy still gave it a wee squirt
just to make sure. I removed the wing and disconnected the
batteries.
On returning home I stripped the model to see just what damage had been done. Remarkably there was no damage to the Fiberglass cowl, the firewall took most of the brunt being pretty much destroyed by the fire.
I removed the engine, engine mount and what was left of the speed controller, and put them aside concentrating on removing what was left of the firewall and assessing how to repair the damage to it and the underside of the fuselage where the undercarriage plate had been ripped out. Nothing looked to hard to repair so I put that aside and then assessed the electrics.
The speed controller was destroyed, so a new one will be needed I visually inspected the batteries and checked them with my battery tester, no damage there. Next I stripped the motor and inspected it for damage, visually everything looked fine. The shaft had not been bent in the crash and there was no damage to the bearings or the outer case and magnets I cleaned out any powder from the extinguisher.
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