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#1
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Diana 2 FES
Diana 2 FES flies in the USA.
https://www.youtube.com/watch?featur...&v=hQk04eG6K5c Video and music by Curt Lewis "95" Jerry Zieba "ZJ" |
#2
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Diana 2 FES
So...Â* The video showed the prop spin up on the ground but did not show
the take off.Â* Is it a self launcher or not? On 12/8/2019 3:37 PM, Jerry Zieba wrote: Diana 2 FES flies in the USA. https://www.youtube.com/watch?featur...&v=hQk04eG6K5c Video and music by Curt Lewis "95" Jerry Zieba "ZJ" -- Dan, 5J |
#3
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Diana 2 FES
Really Dan, pay attention. "FES" stands for "front engine sustainer", whereas "FES" stands for "front engine self-launcher".
OK, seriously, the Diana site says the Diana 2 and 3 are optioned for "FES" capability (which they define as front engine sustainter). However, they also state, "The Diana 2 with 185 kg of empty mass can be self-launched without water ballast." A friend swears the Diana line either meets or exceeds the performance of any other competition glider to date (stated before Ventus 3 and JS3 were produced). Dusty |
#4
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Diana 2 FES
On Monday, 9 December 2019 02:05:24 UTC+2, Duster wrote:
A friend swears the Diana line either meets or exceeds the performance of any other competition glider to date (stated before Ventus 3 and JS3 were produced). Dusty It is still true, I've seen it with my own eyes. |
#5
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Diana 2 FES
On Monday, December 9, 2019 at 12:05:24 AM UTC, Duster wrote:
Really Dan, pay attention. "FES" stands for "front engine sustainer", whereas "FES" stands for "front engine self-launcher". OK, seriously, the Diana site says the Diana 2 and 3 are optioned for "FES" capability (which they define as front engine sustainter). However, they also state, "The Diana 2 with 185 kg of empty mass can be self-launched without water ballast." A friend swears the Diana line either meets or exceeds the performance of any other competition glider to date (stated before Ventus 3 and JS3 were produced). Dusty Front Electric Sustainer actually. |
#6
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Diana 2 FES
Chris Wedgwood wrote on 12/11/2019 2:38 AM:
On Monday, December 9, 2019 at 12:05:24 AM UTC, Duster wrote: Really Dan, pay attention. "FES" stands for "front engine sustainer", whereas "FES" stands for "front engine self-launcher". OK, seriously, the Diana site says the Diana 2 and 3 are optioned for "FES" capability (which they define as front engine sustainter). However, they also state, "The Diana 2 with 185 kg of empty mass can be self-launched without water ballast." A friend swears the Diana line either meets or exceeds the performance of any other competition glider to date (stated before Ventus 3 and JS3 were produced). Dusty Front Electric Sustainer actually. Actually not, according the FES people: "FES is efficient and innovative Front Electric Self-launch / Self-sustainer propulsion system for powered sailplanes, developed and produced by LZ design company located in Slovenia in the middle of the Europe." I believe it was "sustainer" initialiy, but with so many FES equipped gliders capable of self-launch, the meaning has been expanded. My favorite of the FES self-launchers is the 13.5M minLAK FES. Small, light, easy to live with, but with good gliding and power-on performance. It has enough water ballast capacity to use the strong days well, at least where I live in the Pacific Northwest. -- Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me) - "A Guide to Self-Launching Sailplane Operation" https://sites.google.com/site/motorg...ad-the-guide-1 |
#7
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Diana 2 FES
FES is powering self-launchers, but not in certified EASA aircraft.
The Alisport Silent and other similar ultralight sailplanes have been self-launching reliably. Bigger sailplanes like the LAK17 have performed SL but, AFAIK, only as experimental procedures by the pilot-owner. I have personally seen it in a LAK 17cFes, when the owner of the factory was the PIC. Aldo Cernezzi www.voloavela.it |
#8
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Diana 2 FES
On Wednesday, December 11, 2019 at 3:11:22 PM UTC, Eric Greenwell wrote:
Chris Wedgwood wrote on 12/11/2019 2:38 AM: On Monday, December 9, 2019 at 12:05:24 AM UTC, Duster wrote: Really Dan, pay attention. "FES" stands for "front engine sustainer", whereas "FES" stands for "front engine self-launcher". OK, seriously, the Diana site says the Diana 2 and 3 are optioned for "FES" capability (which they define as front engine sustainter). However, they also state, "The Diana 2 with 185 kg of empty mass can be self-launched without water ballast." A friend swears the Diana line either meets or exceeds the performance of any other competition glider to date (stated before Ventus 3 and JS3 were produced). Dusty Front Electric Sustainer actually. Actually not, according the FES people: "FES is efficient and innovative Front Electric Self-launch / Self-sustainer propulsion system for powered sailplanes, developed and produced by LZ design company located in Slovenia in the middle of the Europe." I believe it was "sustainer" initialiy, but with so many FES equipped gliders capable of self-launch, the meaning has been expanded. My favorite of the FES self-launchers is the 13.5M minLAK FES. Small, light, easy to live with, but with good gliding and power-on performance. It has enough water ballast capacity to use the strong days well, at least where I live in the Pacific Northwest. -- Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me) - "A Guide to Self-Launching Sailplane Operation" https://sites.google.com/site/motorg...ad-the-guide-1 Take a look at the URL for their website .. http://www.front-electric-sustainer.com/ |
#9
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Diana 2 FES
Chris Wedgwood wrote on 12/11/2019 1:24 PM:
On Wednesday, December 11, 2019 at 3:11:22 PM UTC, Eric Greenwell wrote: Chris Wedgwood wrote on 12/11/2019 2:38 AM: On Monday, December 9, 2019 at 12:05:24 AM UTC, Duster wrote: Really Dan, pay attention. "FES" stands for "front engine sustainer", whereas "FES" stands for "front engine self-launcher". OK, seriously, the Diana site says the Diana 2 and 3 are optioned for "FES" capability (which they define as front engine sustainter). However, they also state, "The Diana 2 with 185 kg of empty mass can be self-launched without water ballast." A friend swears the Diana line either meets or exceeds the performance of any other competition glider to date (stated before Ventus 3 and JS3 were produced). Dusty Front Electric Sustainer actually. Actually not, according the FES people: "FES is efficient and innovative Front Electric Self-launch / Self-sustainer propulsion system for powered sailplanes, developed and produced by LZ design company located in Slovenia in the middle of the Europe." I believe it was "sustainer" initialiy, but with so many FES equipped gliders capable of self-launch, the meaning has been expanded. My favorite of the FES self-launchers is the 13.5M minLAK FES. Small, light, easy to live with, but with good gliding and power-on performance. It has enough water ballast capacity to use the strong days well, at least where I live in the Pacific Northwest. Take a look at the URL for their website .. http://www.front-electric-sustainer.com/ I did that before I posted the sentence, which is quoted from their website; in fact, it is the first sentence on the website. Go by the site's content, not the URL! -- Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me) - "A Guide to Self-Launching Sailplane Operation" https://sites.google.com/site/motorg...ad-the-guide-1 |
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