I will take a stab at this. This Arcus uses a 250 pound trust engine, not sure about a jet ventus but the JS-1 jet and 304 jet have about 80 pounds of trust.

Just recently heard that the jet sailplanes are not allowed in Europe due to the noise. Could be why Schempp and Schliecher had not been leading the development of jet sailplanes.



On Friday, October 21, 2016 at 6:30:05 AM UTC-7, Vernon Brown wrote:
At 04:43 21 October 2016, Eric Greenwell wrote:
JJJ wrote on 10/19/2016 10:07 AM:
;930557 Wrote:
. . . Launching from Inyokern, CA at sunrise, Dennis and
designer/copilot Bob Carlton powered up to 8,000 MSL and found the
wave.
. . .

Cool! Now we can have a glider be the towplane for another glider!

Shucks, my Phoenix came with a towhook! If only I know how to tow ...


--
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
- "Transponders in Sailplanes - Dec 2014a" also ADS-B, PCAS, Flarm

http://soaringsafety.org/prevention/...anes-2014A.pdf


I presume the jet used is bigger (more powerful) than that used in the
Ventus, and what is the fuel burn?