SEN 3075
- Fab Feb Food
- Fab Feb Flash
- Question on Jouletest
Fab Feb Food
Social Evening at Gabby’s is on. Gabby’s in the local restaurant , rather than a chain, in the town of Lost Hills. Normally they close early evening, too early for us. . On Thursday starting at 6pm they are open especially for us. There is Tri-Tip and a Mexican special as featured items on the menu.
Fab Feb Flash
From Tony on the field
Beautiful sunny weather, light winds and green grass!
Question on Jouletest
From:
Benjamin Tarcher
Hi Roger, In SEN 2488 there is mention of a Jouletest. Does someone know how and what is needed on the part of the flyer/model to perform this test? I have a typical Sidus timer limiter set up with a supplied start button.
Thanks,
Ben
Editor
This is the sporting code section on that.
3.8.2. Characteristics
Nickel Metal Hydride (NiMH) and Lithium (Li) batteries can be used.
Lithium type battery packs must be in “as manufactured” condition with the covering around the cell surface. If more than one cell is used a balancer connector must be fitted.
External Battery packs are required to have a safety tether to the fuselage.
Safety locks must be used to prevent unintentional restarting of motor(s) after motor(s) have been stopped.
The motor run time will be determined by a maximum energy amount. In addition, motor runs over 30 seconds are regarded as overruns. The energy budget of each model is 3 joules per gram of the total weight. For energy calculations, weight exceeding 550 grams is to be ignored.
Models must have provision for connecting a Static Energy Test (SET) device between the battery and the model’s system via 3.5 mm male and female bullet connectors. The connectors from the battery should be male positive and female negative. It is the responsibility of the competitor to supply any adapters needed to connect to the SET
Energy limitation will be by an energy limiter. The allowed energy amount starts to be calculated with the release of the start button and finishes when the ESC has stopped supplying energy to the motor. The energy limiter has to calculate the energy consumed in real time. After coming to the end of the limited energy supply, the motor(s) must stop irreversibly.
For energy limit verification, a SET is to be connected to the model to allow measurements to confirm the energy used between the release of the start button and until the ESC has stopped supplying energy to the motor. To synchronise the time of release of the start button the model must include a cable connected in parallel with the start button and terminated with a 2-pin, 2.54mm pitch female connector. The SET must store and display energy amount used and motor run time.
F1Q models may use radio control only for irreversible actions to control dethermalisation of the model. This may include stopping the motor if it is still running. Any malfunction or unintended operation of these functions is entirely at the risk of the competitor.