Mistral-C vs DG-100

Op zaterdag 27 juli 2019 20:28:31 UTC+2 schreef Matt McBee:
I have a DG-101 with conventional tail and one piece canopy. I can say that aerotow with the CG hook has been a total non-issue for me so far. Takeoffs are easy, just remember to follow the flight manual’s guidance. I mine, the trim should be set full forward for takeoff. I don’t know if this is true for the -100.

I have found the -101 to be a docile and responsive glider with very gentle and forgiving stall characteristics.

The airbrakes are only moderately effective, however.

Matt

This is true for my DG-101 as well. I don't weigh much so on takeoff roll it set the trim full forward until I reach about 20m above ground and 100+ km/h, I set my trim halfway, to get the extra pitch from the trim tab.

Any belly hook DG needs full down trim for takeoff. Nose hook not so much.

On Tue, 20 Aug 2019 14:39:20 -0700 (PDT), Charlie Quebec
wrote:

Any belly hook DG needs full down trim for takeoff. Nose hook not so much.


Neither DG-300, nor DG-600, nor DG-800 need full down trim for an
aerotow. All of them belly hook.

I haven't flown DG-100 nor DG-200.

Cheers
Andreas


p.s.
We converted both of my club's DG-300s to nose hooks (due to German
legislation), so we could compare both hook positions on the same
gliders.

Absolutely NO trim change if the nose hook was used instead of the CG
hook.

I recently started flying a DG200.

I had not previously flown on a C.G. hook and had also no flown gliders for over 10 years when I got back into the hobby this past spring.


I joined Utah Soaring Association that luckily enough had several Twin Astir's with C.G. hooks. I took about 13 hours training to both knock my flight skills rust off and learn C.G. hook tows.

After getting my skills up to a safe level on the nose hook, I started training on the C.G. hook on the Astir and did not have much difficulty in that transition.

The more noticeable change was when I started flying the DG200. Per the manual elevator is to be trimmed full forward for take off.
My first take off, I did pitch up somewhat steeply and corrected appropriately with down elevator. I had been warned about the possibility of the pitch up of course so it was not too dramatic. But it did get my attention.

After a few more tows I was of course much more stable in the takeoff, to the point I am comfortable with the aircraft now.

I find at my weight and balance at roughly only 37 percent. If I bring the trim back about 15 to 20 percent from full forward trim the take off is pretty standard.

On Monday, August 26, 2019 at 11:50:24 PM UTC+3, Mike N. wrote:

After getting my skills up to a safe level on the nose hook, I started training on the C.G. hook on the Astir and did not have much difficulty in that transition.



Training for nose hook and then transitionin to C.G. hook? You make it sound like stepping up from Cessna 150 to B-29. Most of us wouldn't notice any difference whatsoever no matter where you put the hook. This has to be most overblown issue on r.a.s, ever.

On Tuesday, August 27, 2019 at 4:14:14 AM UTC-7, krasw wrote:
On Monday, August 26, 2019 at 11:50:24 PM UTC+3, Mike N. wrote:

After getting my skills up to a safe level on the nose hook, I started training on the C.G. hook on the Astir and did not have much difficulty in that transition.



Training for nose hook and then transitionin to C.G. hook? You make it sound like stepping up from Cessna 150 to B-29. Most of us wouldn't notice any difference whatsoever no matter where you put the hook. This has to be most overblown issue on r.a.s, ever.

I beg to differ..with my DG300 the CG hook presents no problem. One of the clubs I did belong to years ago had a Janus A - hang on to your hat!
It all depends on the glider....

And one other thing;for the most part taking off with a CG hook poses no problem unless if one gets out of wheck say 10/15 degrees off center line as in a crosswind -things could quickly escalate leading to a ground loop, much more so than gliders equipped with a nose hook.
Just my 5 C worth on that....

On Tuesday, August 27, 2019 at 11:02:22 AM UTC-4, 6PK wrote:
And one other thing;for the most part taking off with a CG hook poses no problem unless if one gets out of wheck say 10/15 degrees off center line as in a crosswind -things could quickly escalate leading to a ground loop, much more so than gliders equipped with a nose hook.
Just my 5 C worth on that....

The Pegase manual doesn't say where to set the trim for a CG launch but it does say if 20 degrees or more off towing axis release immediately. My Peg has only the CG and I'm still thinking about adding a forward release. That said, its never been a problem. You just have to pay attention. You go where you're pointing.

"Training for nose hook and then transitionin to C.G. hook? You make it sound like stepping up from Cessna 150 to B-29. Most of us wouldn't notice any difference whatsoever no matter where you put the hook. This has to be most overblown issue on r.a.s, ever."
Who cares what you think, troll? There is a difference in nose to C.G. hook tows.
As most anyone (but you apparently) knows, pitch and yaw sensitivity on initial roll out and tow are higher.
Plenty of documented incidents of C.G. hook tows with very high pitch ups on take off leading to pulling the tow plan tail up and potentially planing the prop.
Go back under your bridge and S.T.F.Up if your arrogant A$$ does not like a post. Others may find it useful.

Training for nose hook and then transitionin to C.G. hook? You make it sound like stepping up from Cessna 150 to B-29. Most of us wouldn't notice any difference whatsoever no matter where you put the hook. This has to be most overblown issue on r.a.s, ever.

Troll; There is a difference in nose to C.G. hook tows.
Pitch and yaw sensitivity on initial roll out and tow are higher.
Plenty of documented incidents of C.G. hook tows with very high pitch ups on take off leading to pulling the tow plan tail up and potentially planting the prop.
P.S. if your arrogant A$$ does not like a post shut up. Others may find it useful.