Warning for UDP when filing a flightplan

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Warning for UDP when filing a flightplan

Warning for UDP when filing a flightplan

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Bouwair

posted 2/5/2014 1:00:54 PM

Group: Forum Members
Posts: 39, Visits: 2.8K

Cab Skydemon give you a warning when you file a flightplan and the arrival time is later the the UDP.
We had a cancellation of our flightplan because we were arriving 10 minutes later the the official UDP in the Netherlands.
I think the software would be able to check these times.

Thanks in advance
Freerk

P.s. Is there any hope in getting a multi leg planning in Skydemon.

Tim Dawson

posted 2/6/2014 3:59:12 PM

Group: Forum Members
Posts: 8.1K, Visits: 9.4K

My memory must be failing me. What is the UDP in this context?

srayne

posted 2/6/2014 5:23:53 PM

Group: Forum Members
Posts: 388, Visits: 8.3K

From Dutch AIP GEN 2.2:

UDP	= uniform daylight period

Tim Dawson

posted 2/7/2014 12:46:24 PM

Group: Forum Members
Posts: 8.1K, Visits: 9.4K

I wonder, does "daylight" vary between countries? From memory here in the UK it's from half an hour before sunrise until half an hour after sunset.

lhe

lhe

posted 2/7/2014 2:04:05 PM

Group: Forum Members
Posts: 154, Visits: 445

In Sweden daylight is considered to be the opposite of darkness which is defined as:

"A condition which is considered to prevail when between sunset and sunrise a prominent unlighted object due to reduced daylight cannot be clearly observed from a distance of more than 8 km."

I believe Norway and Finland have similar definitions.

Admin

posted 2/7/2014 2:35:09 PM

Group: Administrators
Posts: 48, Visits: 212

Interesting. That definition is not very conducive to automated warnings.

srayne

posted 2/7/2014 2:58:03 PM

Group: Forum Members
Posts: 388, Visits: 8.3K

The times for UDP are defined precisely in Dutch AIP GEN2.7:

UNIFORM DAYLIGHT PERIODS 2014
Day	JAN		FEB		MAR		APR		MAY		JUN
	period		period		period		period		period		period
	from	to	from	to	from	to	from	to	from	to	from	to
1	0733	1554	0705	1643	0611	1734	0500	1828	0356	1920	0311	2005
2	0733	1555	0704	1645	0609	1736	0458	1830	0354	1921	0310	2006
3	0733	1556	0702	1646	0607	1738	0456	1832	0352	1923	0310	2007
4	0733	1558	0700	1648	0605	1740	0453	1834	0350	1925	0309	2008
5	0732	1559	0659	1650	0602	1742	0451	1835	0348	1926	0308	2009
6	0732	1600	0657	1652	0600	1743	0449	1837	0346	1928	0308	2010
7	0731	1601	0655	1654	0558	1745	0447	1839	0345	1930	0307	2011
8	0731	1603	0653	1656	0556	1747	0444	1840	0343	1931	0307	2012
9	0730	1604	0652	1658	0553	1749	0442	1842	0341	1933	0306	2013
10	0730	1606	0650	1659	0551	1750	0440	1844	0339	1934	0306	2014
11	0729	1607	0648	1701	0549	1752	0438	1846	0338	1936	0305	2014
12	0729	1608	0646	1703	0547	1754	0435	1847	0336	1938	0305	2015
13	0728	1610	0644	1705	0544	1756	0433	1849	0335	1939	0305	2016
14	0727	1611	0642	1707	0542	1757	0431	1851	0333	1941	0305	2016
15	0726	1613	0640	1709	0540	1759	0429	1852	0331	1942	0305	2017
16	0725	1615	0638	1711	0537	1801	0427	1854	0330	1944	0304	2017
17	0724	1616	0636	1712	0535	1803	0424	1856	0328	1945	0304	2018
18	0723	1618	0634	1714	0533	1804	0422	1858	0327	1947	0304	2018
19	0722	1620	0632	1716	0530	1806	0420	1859	0326	1948	0304	2018
20	0721	1621	0630	1718	0528	1808	0418	1901	0324	1950	0305	2019
21	0720	1623	0628	1720	0526	1810	0416	1903	0323	1951	0305	2019
22	0719	1625	0626	1722	0523	1811	0414	1904	0322	1953	0305	2019
23	0718	1626	0624	1723	0521	1813	0412	1906	0320	1954	0305	2019
24	0717	1628	0622	1725	0519	1815	0410	1908	0319	1955	0306	2019
25	0715	1630	0620	1727	0517	1817	0408	1909	0318	1957	0306	2019
26	0714	1632	0618	1729	0514	1818	0406	1911	0317	1958	0306	2019
27	0713	1634	0616	1731	0512	1820	0404	1913	0316	1959	0307	2019
28	0711	1635	0613	1733	0510	1822	0402	1915	0315	2000	0307	2019
29	0710	1637			0507	1823	0400	1916	0314	2002	0308	2019
30	0708	1639			0505	1825	0358	1918	0313	2003	0309	2018
31	0707	1641			0503	1827			0312	2004

UNIFORM DAYLIGHT PERIODS 2014
Day	JUL		AUG		SEP		OCT		NOV		DEC		JAN 2015
	period		period		period		period		period		period		period
	from	to	from	to	from	to	from	to	from	to	from	to	from	to
1	0309	2018	0347	1945	0437	1842	0526	1733	0620	1627	0710	1547	0733	1554
2	0310	2018	0348	1943	0438	1840	0527	1731	0621	1625	0712	1547	0733	1555
3	0311	2017	0350	1942	0440	1838	0529	1728	0623	1623	0713	1546	0733	1556
4	0312	2017	0351	1940	0441	1836	0531	1726	0625	1621	0714	1546	0733	1557
5	0312	2016	0353	1938	0443	1833	0532	1724	0627	1620	0716	1545	0732	1559
6	0313	2016	0354	1936	0445	1831	0534	1721	0629	1618	0717	1545	0732	1600
7	0314	2015	0356	1935	0446	1829	0536	1719	0630	1616	0718	1544	0732	1601
8	0315	2014	0358	1933	0448	1826	0537	1717	0632	1615	0719	1544	0731	1602
9	0316	2014	0359	1931	0449	1824	0539	1715	0634	1613	0721	1544	0731	1604
10	0317	2013	0401	1929	0451	1822	0541	1712	0636	1611	0722	1544	0730	1605
11	0318	2012	0402	1927	0453	1819	0543	1710	0638	1610	0723	1543	0729	1607
12	0319	2011	0404	1925	0454	1817	0544	1708	0639	1608	0724	1543	0729	1608
13	0320	2010	0406	1923	0456	1815	0546	1706	0641	1607	0725	1543	0728	1610
14	0322	2009	0407	1921	0458	1813	0548	1704	0643	1605	0726	1543	0727	1611
15	0323	2008	0409	1919	0459	1810	0549	1701	0645	1604	0727	1544	0726	1613
16	0324	2007	0410	1917	0501	1808	0551	1659	0646	1603	0727	1544	0726	1614
17	0325	2006	0412	1915	0502	1806	0553	1657	0648	1601	0728	1544	0725	1616
18	0327	2005	0414	1913	0504	1803	0555	1655	0650	1600	0729	1544	0724	1617
19	0328	2004	0415	1911	0506	1801	0556	1653	0651	1559	0730	1545	0723	1619
20	0329	2003	0417	1909	0507	1758	0558	1651	0653	1558	0730	1545	0722	1621
21	0331	2001	0419	1907	0509	1756	0600	1649	0655	1556	0731	1545	0720	1623
22	0332	2000	0420	1905	0511	1754	0602	1646	0656	1555	0731	1546	0719	1624
23	0333	1959	0422	1902	0512	1751	0603	1644	0658	1554	0732	1546	0718	1626
24	0335	1957	0423	1900	0514	1749	0605	1642	0700	1553	0732	1547	0717	1628
25	0336	1956	0425	1858	0516	1747	0607	1640	0701	1552	0732	1548	0716	1629
26	0338	1955	0427	1856	0517	1744	0609	1638	0703	1551	0733	1548	0714	1631
27	0339	1953	0428	1854	0519	1742	0611	1636	0704	1550	0733	1549	0713	1633
28	0341	1952	0430	1851	0521	1740	0612	1634	0706	1550	0733	1550	0711	1635
29	0342	1950	0432	1849	0522	1737	0614	1633	0707	1549	0733	1551	0710	1637
30	0344	1948	0433	1847	0524	1735	0616	1631	0709	1548	0733	1552	0709	1639
31	0345	1947	0435	1845			0618	1629			0733	1553	0707	1640

Admin

posted 2/7/2014 6:14:07 PM

Group: Administrators
Posts: 48, Visits: 212

Ah. I can't see us encoding all those into SkyDemon and issuing warnings, sorry.

lhe

lhe

posted 2/8/2014 11:08:34 AM

Group: Forum Members
Posts: 154, Visits: 445

Admin (07/02/2014)

Interesting. That definition is not very conducive to automated warnings.

Indeed not. But when you have a country spanning about 14 degrees of latitude and including the arctic circle there is no other reasonable way to do it. Also night VFR is legal in Sweden.

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