Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss
Mini LAK
1,037 views
Skip to first unread message
wrench...@gmail.com
Feb 17, 2018, 7:25:19 PM2/17/18
to
Does anyone have any experience, knowledge or opinion on the headwind penetration capabilities of the Mini-LAK without the FES. The manufacture advertises a 45/1 L/D with very light 13.5 meter wings. Appreciate any feedback. Thanks.
RossFW
Feb 18, 2018, 1:40:57 AM2/18/18
to
On Sunday, February 18, 2018 at 11:25:19 AM UTC+11, wrench...@gmail.com wrote:
> Does anyone have any experience, knowledge or opinion on the headwind penetration capabilities of the Mini-LAK without the FES. The manufacture advertises a 45/1 L/D with very light 13.5 meter wings. Appreciate any feedback. Thanks.
I believe the polar is available on the brochure. TAS - HEAD-WING equals ground speed, same as any other glider.
> Does anyone have any experience, knowledge or opinion on the headwind penetration capabilities of the Mini-LAK without the FES. The manufacture advertises a 45/1 L/D with very light 13.5 meter wings. Appreciate any feedback. Thanks.
krasw
Feb 18, 2018, 2:24:06 AM2/18/18
to
sunnuntai 18. helmikuuta 2018 2.25.19 UTC+2 wrench...@gmail.com kirjoitti:
> Does anyone have any experience, knowledge or opinion on the headwind penetration capabilities of the Mini-LAK without the FES. The manufacture advertises a 45/1 L/D with very light 13.5 meter wings. Appreciate any feedback. Thanks.
45/1? The best 15m gliders can barely touch that figure (talking about real world, not brochures), taking 10% off span does not exactly help. Germans have given MiniLAK same handicap as LS4, which does not contradict things I have heard about performance. But why would anyone fly this wihtout FES? At 35 kg/m2 wingloading "penetration capability" is about same as with paper bag.
> Does anyone have any experience, knowledge or opinion on the headwind penetration capabilities of the Mini-LAK without the FES. The manufacture advertises a 45/1 L/D with very light 13.5 meter wings. Appreciate any feedback. Thanks.
Tony
Feb 18, 2018, 10:21:32 AM2/18/18
to
A mini LAK with FES will be flying quite a bit higher than 35 kg/m^2. In Hungary all the Mini LAKS flew without FES and we're at the (silly) 35 kg/m^2 limit.
Check out the flight traces for the first day of the 2nd 13.5m WGC. the first turnpoint was directly in to the wind probably about 75km. Wind was at least 20 knots. The Mini LAKs made it. Thise of us in Silents did not.
There was another similar day about Day 8 or so, where the task was a double out and return along a strong NW wind. You can evaluate from the traces how the MiniLAKs handled it. I couldn't write make the last turnpoint into the wind and had to use the motor before the downwind run home.
My assessment from actual (brief) side by side in flight experience is that the miniLAK can work into the wind just fine.
Check out the flight traces for the first day of the 2nd 13.5m WGC. the first turnpoint was directly in to the wind probably about 75km. Wind was at least 20 knots. The Mini LAKs made it. Thise of us in Silents did not.
There was another similar day about Day 8 or so, where the task was a double out and return along a strong NW wind. You can evaluate from the traces how the MiniLAKs handled it. I couldn't write make the last turnpoint into the wind and had to use the motor before the downwind run home.
My assessment from actual (brief) side by side in flight experience is that the miniLAK can work into the wind just fine.
sisu1a
Feb 18, 2018, 1:39:16 PM2/18/18
to
0 new messages