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#1
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New Concept for Sailplane "racing"
https://www.fai.org/news/new-contest...hLble-enOfPP9U
Camera on, drops newspaper on porch and runs.... Steve Leonard |
#2
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New Concept for Sailplane "racing"
" Each race will include an allowance of electrical energy that the pilot can use whenever he thinks appropriate."
Interesting idea, but this is such a major can of worms I could go on for pages, so will just stop here. This could also spark a battery "arms race". Now not only would pilots need to fork over the big bucks for the latest and greatest air frame, they would also need to spend big bucks on the biggest, baddest battery available. "The overall scoring will be based on each pilots elapsed time, similar to the scoring of the famous Tour De France cycle race. Pilots not completing the race will be allocated a time based on the slowest finisher’s time to ensure they will remain in the overall places during the contest." I like that idea very much. Am I missing downsides to this? Perhaps a waiver could be obtained to try out at a contest. P9 |
#3
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New Concept for Sailplane "racing"
This sounds much like the way the FAI has gone with Endurance Car racing, particularly with the LM prototypes. They are allowed a certain amount of energy per lap averaged over 3 laps, and if they go over it, they get penalized.
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#4
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New Concept for Sailplane "racing"
On Tuesday, December 11, 2018 at 1:27:01 PM UTC-8, wrote:
...they would also need to spend big bucks on the biggest, baddest battery available... Worth remembering that when good batteries are bad, they are very very bad. That elevates the risk/reward evaluation somewhat. --Bob K. |
#5
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New Concept for Sailplane "racing"
On Tue, 11 Dec 2018 13:27:00 -0800, ktr wrote:
This could also spark a battery "arms race". Now not only would pilots need to fork over the big bucks for the latest and greatest air frame, they would also need to spend big bucks on the biggest, baddest battery available. Not necessarily. Here's what happens in the model world. If they take even a passing look at how electric power is used in model competition classes (F1Q free flight and F5B radio control) they use onboard energy limiters. Exactly what the limiter does depends on the class: In F1Q the model climbs under power until either 30 seconds has elapsed or the motor has chewed through its power limit (4 joules per gram of model weight). The first of these to occur ends the motor run and the model continues in gliding flight until it lands or maximum flight time for the event is reached. Competitors are scored on the total flight time they achieve over a set number of flights. In F5B each flight is multitask: the model first flies laps round two pylons for 2 minutes after which it is expected to soar for a further 10 minutes, ending with a spot landing. The flight is scored on the number of laps flown, the difference between the soaring flight time and 10 minutes (the difference between actual flight time and 600 seconds reduces the score) and the distance the model lands from the spot (the closer to the spot it stops, the higher the score). There is an energy limiter in the model that shuts the motor down as soon as the energy limit is reached and prevents it starting again during that flight. In view of this CIAM experience (CIAM is part of the FAI) I wouldn't expect any electric manned glider class to have a hard limit on power used, but I *would* expect every glider to carry a sealed energy logger fitted between battery and motor and for this log, which might be included in an enhanced IGC flight log, to be downloaded and scored when the IGC flight log is checked. I'd expect then to apply a penalty (a big DQ?) for exceeding the energy limit and possibly a bonus for finishing with energy usage below the limit. It would be reasonable to put limits put on battery size and weight (there is in F5B) and probable that the energy limit would be set well below the maximum capacity of suitable batteries (as in F1Q and F5B). -- Martin | martin at Gregorie | gregorie dot org |
#6
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New Concept for Sailplane "racing"
1)Great idea
2)Hard to implement in the short term. 3)Expensive as at least 3 ex-wife |
#7
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New Concept for Sailplane "racing"
On Tue, 11 Dec 2018 15:52:20 -0800, Emir Sherbi wrote:
1)Great idea 2)Hard to implement in the short term. 3)Expensive as at least 3 ex-wife Which is expensive (apart from ex-wives ;-)? I don't see why an energy logger would be much more expensive than an IGC logger or a 'smart' electric meter. These days you can buy DC wattmeters that handle up to 100A at 60v for $20. An energy logger is really just a recording wattmeter but calibrated in joules rather than watt.hours -- Martin | martin at Gregorie | gregorie dot org |
#8
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New Concept for Sailplane "racing"
Here is my electric "glider", I look forward to cleaning up on the speed tasks:
https://www.flyingmag.com/siemens-el...-maiden-flight |
#9
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New Concept for Sailplane "racing"
On Tuesday, December 11, 2018 at 7:20:33 PM UTC-6, wrote:
Here is my electric "glider", I look forward to cleaning up on the speed tasks: https://www.flyingmag.com/siemens-el...-maiden-flight Or, not. https://electrek.co/2018/06/04/sieme...e-crash-death/ Condolences to the families. Steve Leonard |
#10
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New Concept for Sailplane "racing"
No parachutes?
On 12/11/2018 7:32 PM, Steve Leonard wrote: On Tuesday, December 11, 2018 at 7:20:33 PM UTC-6, wrote: Here is my electric "glider", I look forward to cleaning up on the speed tasks: https://www.flyingmag.com/siemens-el...-maiden-flight Or, not. https://electrek.co/2018/06/04/sieme...e-crash-death/ Condolences to the families. Steve Leonard -- Dan, 5J |
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