SeeYou works perfectly well on an Intel Mac with Parallels. And at least you can continue to use a computer that looks as if it was designed by a grown-up with some aesthetic senses.
I have heard that some Mac based gliding logbook software is under development which will display IGC traces including engine noise level. Hopefully it will be featured in an up-coming issue of Keep Soaring. SeeYou most definitely does _display_ engine noise level and I believe MOP levels _where they have been recorded by the logger_. However, whether ENL or MOP is recorded is another matter. This depends mostly on whether the logger is fitted with an Engine Noise Level sensor. Even if it is fitted with a sensor, this may not pick up all engine level readings. This is currently a vexed question with the FAI in IGC files. The noise of many electric and even jet engines are not reliably picked up by current ENL sensors even though the noise from jet engines is very clearly audible from outside. To see if ENL has been recorded, check the IGC file. In the "I record" near the top there should be an entry for ENL if the recorder is capable of doing this… I073638FXA3941ENL4246TAS4751GSP5254TRT5559VAT6063OAT >From memory, the entry <3941ENL> means that engine noise level is noted in the B record between bytes or fields 39-41. The entry can be a maximum of 999 and should ideally be this when the engine is running normally. B0845084909336N00833938EA005800050400799 910 8831328601400624 I guess they count from 0 like most nerds. B084508490 9336N00833 938EA00580 00504007 999 108831328601400624 The numbers 999 should be the ENL record showing max engine noise. If you are in doubt as to whether software such as SeeYou is at fault or the ENL recording, you can easily check the traces on the OLC where you can see ENL on a self launcher on the flight profile. Something similar is normally shown in SeeYou. Well that's the dream anyway. The reality with some new propulsion systems is a bit different and the FAI have been a bit slow to respond and in any case, it is not really easy. The notes which follow are from the 2010-2011 FAI "technical specifications for GNSS flight recorders" which can be downloaded from the internet from an address which changes by the hour as the FAI move the files around. 5.6.3 ENL and MOP numbers. The three ENL and MOP numbers as recorded in IGC files must therefore differentiate between the "quiet engine" and the "noisy cockpit" cases. This is done by carefully selecting the frequency and gain at which the ENL system is most sensitive, and in the case of MOP systems, testing the sensor provided by the FR manufacturer, which could be acoustic, RPM, fuel flow, temperature (for instance Jet Pipe Temperature). The ENL and MOP system is then tested by GFAC in a range of motor gliders, gliders and powered aircraft. B8.5 Means-of-Propulsion (MoP) recording system. Tests will be made on recording systems for the Means of Propulsion for motor gliders. Such systems include those under Three-Letter Codes ENL and MOP. The critical cases are described in para 5.6 of the main body of this Specification. Tests will be made with the Recorder in a number of types of glider and motor glider. These will include gliders with low aerodynamic cockpit noise, also those with higher cockpit noise in gliding flight. If the required results are not shown, modifications to the ENL system must be made until they are, or an additional sensor added under the MOP three-letter code (para 5.4 in the main body of this document). For other aspects of ENL systems, see Chapter 5 of the main body of this Specification. B8.5.1 Tests with MoP running. Operation of both two-stroke and four-stroke engines will be tested at power settings from maximum power to power for level flight at slow speeds. Results will be analysed to ensure that a clear difference in the IGC file data is shown between all types of gliding flight, and any engine running at positive thrust settings. A critical test will be with a relatively quiet engine, typically a 4-stroke engine in a motor glider at power for level flight. B8.5.2 Tests without MoP running. For gliding flight, tests will be made with the cockpit ventilation and other panels open, both straight at high speed and during turns. In many gliders an "organ pipe" noise can be heard in the cockpit and ENL will be recorded for this condition. A particular test that will be made is turning at typical thermalling speeds with cockpit panels open, because this is often done when it is hot, and if the ENL is too high under this condition it could be mistaken for a climb under power. _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
