Blå Hallen is the Stockholm City Hall, where once every year the Nobel
Prize ceremony is held. It was also for several years the place for an
annual indoor "propaganda" meeting. The ceiling is 21 meters high,
without any hanging lighting armatures, etc. A perfect place for indoor
flying? Well, the air is very turbulent, and the
walls are littered with dangerous model-catching sculptures and niches. One
Swedish indoor championship has been held there, but too many planes got
caught out of reach. But, although the hall is not suitable for lightweight
duration models, it is perfect for the heavier planes; NoCals,
peanuts, Delta Darts and so on. Unfortunately, the indoor fliers no longer have
access to this hall. The city council decided that the hall should only be
lent out at market price, way too high for model flying. The last Blå
Hallen meeting was held in 1999.
The Leijon Trophy
To promote indoor flying, Thomas Leijon has held annual No-Cal competitions
for the Leijon Trophy since 1993. The rules used are:
Max. wingspan: 16" (40 cm)
Max. weight: 6.2 grams
In addition to the main competition (highest duration), there is also
a Best-in-show prize for the best looking/most interesting No-Cal.