Is there a nose hook modification for a standard cirrus

On Thursday, October 5, 2017 at 11:37:45 AM UTC+3, krasw wrote:
On Thursday, 5 October 2017 06:08:14 UTC+3, wrote:
The CG hook "problem" on aero tow is an airport myth. Nose hooks are a hardware solution to a software problem. Spend your money elsewhere - like a pneumatic tailwheel or spoiler mod.

Agreed, nose vs. cg hook is non-issue and gets way more attention than it really deserves. Most pilot woudn't notice any difference. Tail skid on the other hand is something that should have been left in 1910's and biplanes.. Just horrible thing to have in anything, royal pain in the ass everytime it touches ground.

Certainly in normal circumstances it isn't a problem.

In rotor with slack line I've pitch up when the rope suddenly becomes tight has been noticeable in a Janus, but easily dealt with.

Someone asked a while ago whether there was any history of towplane upsets with nose hook gliders. I don't recall that it was ever answered. You'd think that if it happens someone would be able to quickly point to an example or two.

On 10/5/2017 3:13 AM, Bruce Hoult wrote:
On Thursday, October 5, 2017 at 11:37:45 AM UTC+3, krasw wrote:
On Thursday, 5 October 2017 06:08:14 UTC+3, wrote:
The CG hook "problem" on aero tow is an airport myth. Nose hooks are a
hardware solution to a software problem. Spend your money elsewhere -
like a pneumatic tailwheel or spoiler mod.

Agreed, nose vs. cg hook is non-issue and gets way more attention than it
really deserves. Most pilot woudn't notice any difference. Tail skid on
the other hand is something that should have been left in 1910's and
biplanes. Just horrible thing to have in anything, royal pain in the ass
everytime it touches ground.

Certainly in normal circumstances it isn't a problem.

In rotor with slack line I've pitch up when the rope suddenly becomes tight
has been noticeable in a Janus, but easily dealt with.

Someone asked a while ago whether there was any history of towplane upsets
with nose hook gliders. I don't recall that it was ever answered. You'd
think that if it happens someone would be able to quickly point to an
example or two.

Dunno if it was "kiting" in the sense of "torquing about the glider's CG" or
not, but I recall reading about a tow pilot fatality after a K-8 drove it into
the ground; happened in the 1960s in Utah. The article was given me as part of
a Safety Corner collection by my club's chief instructor for a
reading/feedback assignment during my primary instructional days. My takeaway
was: Kids, don't DO this!

I'd bet other instances in the U.S. - where nose hooks predominated for much
of soaring - can be found...

Bob W.

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Please describe the "spoiler mod".Â* Sounds interesting.

On 10/4/2017 7:13 PM, Scott Williams wrote:
On Wednesday, October 4, 2017 at 4:27:58 PM UTC-5, wrote:
I bought a standard cirrus. I havent flown it yet, but I was wondering if it's possible to put a nose hook on the plane?
Last year I spoke to Heinze of M&H the U.S. Schempp-Hirth Dealer, he thought kit, less Tost release would run $1500, Tost release maybe $500. Installation labor??

Heinze thought it would not be cost effective.
I bought the spoiler mod instead. My glider already had the hatch and wedekind sleeves.
Spoiler mod was worth twice what I paid IMO.

Good Lift,
Scott.

--
Dan, 5J

There is a tech note to add a second panel to the Std. Cirrus airbrake. Makes them much more effective. I did the mod almost as soon as we bought Kate.

Makes sense, thanks!

On 10/5/2017 10:27 AM, Tony wrote:
There is a tech note to add a second panel to the Std. Cirrus airbrake. Makes them much more effective. I did the mod almost as soon as we bought Kate.

--
Dan, 5J

Is there an advantage to using a nose hook when aerotowing through rotor? A year or so ago, I ran the wing for a very_accomplished_glider_pilot in an LS-4 w/c.g.hook who the tow pilot said, went vertical UPish in rotor. The towplane went vertical DOWNish and broke the rope. Both came back to the airport.

Is a C.G. hook better in rotor?

On Thursday, October 5, 2017 at 6:44:51 PM UTC+3, Dan Marotta wrote:
Please describe the "spoiler mod".Â* Sounds interesting.

On 10/4/2017 7:13 PM, Scott Williams wrote:
On Wednesday, October 4, 2017 at 4:27:58 PM UTC-5, wrote:
I bought a standard cirrus. I havent flown it yet, but I was wondering if it's possible to put a nose hook on the plane?
Last year I spoke to Heinze of M&H the U.S. Schempp-Hirth Dealer, he thought kit, less Tost release would run $1500, Tost release maybe $500. Installation labor??

Heinze thought it would not be cost effective.
I bought the spoiler mod instead. My glider already had the hatch and wedekind sleeves.
Spoiler mod was worth twice what I paid IMO.

Good Lift,
Scott.

I thought it was in the early or mid 90s that absolutely every Cirrus at our club (six or seven of them I think) had a 2nd panel added to the airbrakes, all done in a batch over a couple of days.

Hi,

I have a Nimbus 2B that is certified with a nose hook installation. I can look through my records for the 337 if you would like.

Aaron Thomson
N71TT Nimbus 2B