Hot and mild wind for our march comp.
First up was Noel with a new latest model OS 12 car motor for class
1, it has a large square head, tuning problems and therefore not
enough laps in pylon put an end to that. Will need more testing, I
suggest more pitch as I had similar problems with my older nova 12
years ago, I knew it had the power by test prop put screamed on
ground and then rich in air and fast/slow in air, I had been using
props I normally used for my class 1. It was trying to rev to 39,000
in air, too high, as soon as I put on more pitch it slowed to around
35,500 and very consistent speed and it went faster than I could
have expected, way faster than my previous motors.
A lot of motors do not have to rev as fast as you expect especially
if you read the advertising junk, my Nova .21 class 5's only rev to
30,800 and that was under Aussie record. Last month it broke record
but I stuffed up and made the new lines 2inches 50mm too short, so I
made a longer handle. (I hate making lines) I needed another handle
anyway as it pays to have a handle set up for each model, I also
gave the 11 year old model a repaint from red to Kermit Green. First
flight did same speed within 1/100th second 13.62 last month, 13.63
yesterday, but weather/power was not as good or green is slower than
red [joke]. Motor is getting faster all the time, God only knows how
fast these novas can go.
Unfortunately I cannot claim record as lines were still 3/8ths
inch.10mm too short, I stuffed up again, (old age), normally I make
them about 3 inches too long in case contest tape is different to
Noel had 3 flights with his nova .21 but speed down, why. His Class
2 OS 30 fell out of dolly and pulled back off model, not a good day,
time for a good test day?
Another unlucky flier was Vern with his midge (phillteck 09), took
of and clipped ground and wing and tail came off.