IFO
As winter approached the
thought of flying outside with thermal underwear steered me to think in
the direction of indoor models. I had never seen any indoor models fly.
I wanted something a bit more than just flying around in circuits. Also
the thought of 4 walls demanded a robust craft. I rang West London
Models and asked their advice, they said I needed an IFO and that Allan
Levi of ANSA Products was the importer. A quick look in the mags
followed by a phone call to Allan soon had me on my way down to a club
night, just south of Bristol by the Gordano Services on the M5. Enter
Bob Blackmore and an IFO. The IFO bore a close resemblance to an
electric powered kite! Bob proceeded to put on a 5 minute display that
left me speechless, at the end of which he turned round and said "
I hope you are flipping impressed". I most certainly
was and bought one, complete with radio, motor gearbox. The cost was
approximately £100. When I arrived home and opened the box I was
somewhat surprised at the lack of bits in there. Almost no balsa at all,
just a bag of carbon fibre rods of varying lengths, a plan and a long
length of Kevlar!
The Build
Having come to terms that this is a
different construction technique, to more usuall aircraft, the kit
assembled quite quickly. The assembly procedure is mainly carbon rod bent
into semi-circular forms and whipped together with Kevlar, which is then
cyno'ed. This produces an incredibly strong and light structure. Once
complete the structure is covered with plastic, made by Solarfilm but
stuck with Evostick. This is because you must not shrink the covering with
heat. If you do the carbon frame will distort.
Power
The motor is a 280 size, 4:1
gearbox, 10*4.7 prop, 11 off 300mAhr Nickel Metal Hydride. The IFO weighs
about 8ozs. At a club bring and buy I bought a Tamyia black Mabuchi 280
black motor. Wow there's some poke. I have set the control throws for
maximum but with 60% exponential to quieten it down around neutral.

Nick landing the IFO at an Evesham,
Avonvale indoor fly in
Flight envelope
This is the unbelievable bit.
Extremely tight loops and bunts. Just envisage approaching the wall at
about shoulder height and returning at about 2 foot off the floor
inverted. Its true! Cuban eights, inverted Cuban eights, rolling circles,
square loops, even a square eight and 4 leaf clover ( a control line stunt
manoeuvre). That sounds impressive, but don't forget its all done in the
space of a couple of badminton courts! I'm so impressed that I bought a
second IFO and also a mini-IFO. My son Dan also has an IFO now!! I don't
think I have lost the plot, I would quite happily give up out-door greasy
glow planes and concentrate on the thrill of the IFO. It's such a rush!
Did I mention that they are almost unbreakable into the bargain.
Happy flying.
Nick Marson

The IFO and Mini IFO models are available from the
official UK importer Ansa Products and good model shops.
Visit their website at
www.ansaproducts.com
or
click here to see the review of the Mini IFO
