Anyone test fly both the JS3 and the Ventus 3?

On Tuesday, December 18, 2018 at 8:41:28 PM UTC-6, Richard DalCanto wrote:
Dave,
I was going based on what the SH sales agent has told me (that the Sport cockpit is similar to 2A). Unfortunately, as of now, they are not planning on offering FES with Performance cockpit. That is why I have decided I REALLY need to sit in a V3. I'm trying to find one in the Western half of the US so I can fly out for a day and sit in it for 10 minutes. If anyone has one, please let me know....

I did try on the V3 Sport FES of Jim Frantz and at 6'2" I could not get the rudder pedals far enough forward to have my legs extended. It was most uncomfortable sitting in it for 5 minutes so that rules out a 5 hour flight for sure! Seems to FES motor takes up space in the nose that restricts the forward travel of the rudder pedals. Have not tried on a V3 Sport non FES.

Next to try is a JS3. Hopefully designed for tall pilots.

Tony
LS8
Fits very well

I am 6.2' and 210lbs. I fit well into the JS3 (well enough for 8hr flights without fatigue), even better in the LS8 and not at all in the V3 with the small fuselage.
The myth about the JS3 being too heavy to climb, is just that, and if it comes to the run, I would rather be in a JS3 if I wanted to get home first

At 09:19 19 December 2018, wrote:
I am 6.2' and 210lbs. I fit well into the JS3 (well enough for 8hr
flights
without fatigue), even better in the LS8 and not at all in the V3 with
the
small fuselage.
The myth about the JS3 being too heavy to climb, is just that, and if it
comes to the run, I would rather be in a JS3 if I wanted to get home
first


FAI should mandate a minimum cockpit size to allow for the larger pilot
-smaller pilots are getting a slight performance advantage in these
smaller cockpit planes i.e Discus 2a vs the b. If it can't fit an Oscar
then
it should be banned from comps!

On Wednesday, December 19, 2018 at 10:30:18 AM UTC-8, Paul T wrote:

FAI should mandate a minimum cockpit size to allow for the larger pilot
-smaller pilots are getting a slight performance advantage in these
smaller cockpit planes i.e Discus 2a vs the b. If it can't fit an Oscar
then
it should be banned from comps!

My thoughts exactly! Being tall is punishment enough when flying economy class.

Branko XYU

On Wednesday, December 19, 2018 at 8:30:18 PM UTC+2, Paul T wrote:
At 09:19 19 December 2018, wrote:
I am 6.2' and 210lbs. I fit well into the JS3 (well enough for 8hr
flights
without fatigue), even better in the LS8 and not at all in the V3 with
the
small fuselage.
The myth about the JS3 being too heavy to climb, is just that, and if it
comes to the run, I would rather be in a JS3 if I wanted to get home
first


FAI should mandate a minimum cockpit size to allow for the larger pilot
-smaller pilots are getting a slight performance advantage in these
smaller cockpit planes i.e Discus 2a vs the b. If it can't fit an Oscar
then
it should be banned from comps!

I think a more typical FAI solution would be to add new classes for tall pilots. 18m-tall and 18m-short.

I think a more typical FAI solution would be to add new classes for tall pilots. 18m-tall and 18m-short.

How about a "one design" contest? You know, where there is one of each model of glider (V3, JS3, ASH-31, Diana2 etc.) and they are all flown by Sebastian Kawa clones.

On Wednesday, December 19, 2018 at 2:53:38 PM UTC-7, wrote:
I think a more typical FAI solution would be to add new classes for tall pilots. 18m-tall and 18m-short.

How about a "one design" contest? You know, where there is one of each model of glider (V3, JS3, ASH-31, Diana2 etc.) and they are all flown by Sebastian Kawa clones.

....and they fly through the exact same air at the same exact time..like in all contest tasks.

On Wednesday, 19 December 2018 20:30:18 UTC+2, Paul T wrote:
At 09:19 19 December 2018, ocgoudriaan wrote:
I am 6.2' and 210lbs. I fit well into the JS3 (well enough for 8hr
flights
without fatigue), even better in the LS8 and not at all in the V3 with
the
small fuselage.
The myth about the JS3 being too heavy to climb, is just that, and if it
comes to the run, I would rather be in a JS3 if I wanted to get home
first


FAI should mandate a minimum cockpit size to allow for the larger pilot
-smaller pilots are getting a slight performance advantage in these
smaller cockpit planes i.e Discus 2a vs the b. If it can't fit an Oscar
then
it should be banned from comps!

With Schempp A-fuselage you only get advantage over their B/C-fuselage, not over JS3/AS. Their fuselages are 2010's design that are aerodynamically on different level with attention to wing/fuselage-intersection etc.

I talked last summer with one Schleicher pilot with this Schempp fuselage dilemma. Like dozens of others, he has no chance fitting into tiny Ventus3 fuselage, and for him it would be unthinkable to shell out 200k eur to new glider and get second best (Ventus3 with bigger Nimbus4 cockpit). So Schleicher it is.

But if one is considering a FES glider then the performance differences between the fuselages of the V3 Sport, V3 Performance, and JS3 are less relevant given the performance loss from the prop on the nose. See the Idaflieg Lak 17a FES report that shows about 2 max LD points (4%) loss and 3-4 kph slower at typical cruise speeds at the same sink rate. It would make no sense to me to try to squeeze into a small cockpit to gain significantly less performance than you are losing from the prop.

Ditto.
FWIW, a look at the Czech Index List (handicaps) can give an idea of the Czech considerations about the performance of sailplanes, including all variants.
http://lkka.cz/sport/docs/CZIL.xls

While I really do love the FES system as an easy, immediate, nearly fool-proof sustainer, the performance as indicated by this Czech list seems to fall back one generation. In other words, V3F equals V2CXT.

Aldo Cernezzi



Il giorno martedì 1 gennaio 2019 11:33:42 UTC+1, ha scritto:
..... It would make no sense to me to try to squeeze into a small cockpit to gain significantly less performance than you are losing from the prop.