Accident - Need a trainer ASAP

On Thursday, February 25, 2016 at 10:32:52 PM UTC-5, wrote:
Anytime the predicted wind is over 25 knots it is essential that both wing tie-downs be used in conjunction with sturdy wing stands on both wing tips! A witness to a ASK-21 that went over on its back in a 90 knot blow, told me the ship was rocking left and right with the main wheel rising off the ground as the wings came level. As one wing rose, the tension on the tie-down cable, forced the other wing down. Sturdy tie-downs keeping the wings firmly on both wing stands will not allow this rocking oscillations. A sturdy wing stand can be made from a 5' step-ladder, legs cut to required height, with a foam pad glued to the top. A trailing edge glove placed over in an area without controls in conjunction with a 2" web strap from the T/E glove, over the leading edge down to a secure tie-down, used with 4-legged wing stands is the best way to secure your ship (IMHO)
JJ

Our experience(we lost a 2-33 to broken chain) is more is better. We use 2 independent tie downs on each main point, plus one on each tip, and most importantly, a nose tie down. If the nose can keep going up, it is much less likely to blow away.
FWIW
UH

On Wednesday, February 24, 2016 at 8:42:32 PM UTC-6, Brian Rowser wrote:
This last week we had a freakish Winter Storm come through Utah while I was out of the country. Winds in excess of 70MPH hit the airport and my SGS-233A pulled it's tiedowns out of the ground and it ended up in a fence, totalled. I have been working with my young son preparing him to solo on his 14th birthday which is the beginning of April. I'm desperately trying to find a replacement, anyone know of any good trainers for sale. Another 233A would be great, an ASK21 would be even better. If you know of anything?

Thanks!
Brian


Brian,

Our club has a nice 2-33 for sale. I'll contact you directly.

Kirk
66

Sandhill Soaring Club, located near Ann Arbor, MI, has a Grob 103 Twin II Acro and possibly a Ka-7 for sale. Please email me directly if you would like to know more about either of these gliders.

Thank you,
Chris Schrader, Treasurer
Sandhill Soaring Club, Inc.
treasurer at sandhillsoaring dot org

On Wednesday, March 23, 2016 at 12:00:42 AM UTC-6, wrote:
Sandhill Soaring Club, located near Ann Arbor, MI, has a Grob 103 Twin II Acro and possibly a Ka-7 for sale. Please email me directly if you would like to know more about either of these gliders.

Thank you,
Chris Schrader, Treasurer
Sandhill Soaring Club, Inc.
treasurer at sandhillsoaring dot org

There's someone in Illinois on Barnstormers.com looking for a two-seater.

Brian, where are you in Utah?

http://www.mcmaster.com/#earth-anchors/=11oe1od

The 15" anchors won't do the job, but the 48" x 6" anchors will survive almost anything as long as the ground in your area is soft enough to be able to screw these in. Very inexpensive.

Just to add to the above - we lost a 2-33 in a wind storm - flipped on its back and totaled. The wind pulled 4' screw-in earth anchors out of the ground. We now have 5 anchors (nose, wing, wing and two at the tail set at 45 degrees). Most critically, the tail is on a saw horse to keep the winds at zero angle of attack. The two tail anchors prevent the tail from moving sideways off the saw horse. Hindsight is wonderful. Good luck.

For anchoring permanently look at using Secure Set foam. Yes foam

On Thu, 24 Mar 2016 05:14:15 -0700 (PDT), wrote:

http://www.mcmaster.com/#earth-anchors/=11oe1od

The 15" anchors won't do the job, but the 48" x 6" anchors will survive almost
anything as long as the ground in your area is soft enough to be able to screw
these in. Very inexpensive.

On the off chance that not everyone is aware of the key to screwing in
these ground anchors in hard soil ...

Take a long piece of rebar, about as long as the anchor. Slowly hammer
this into the ground at the selected spot. Alternately hammer, then
withdraw, slowly extending the pilot hole deeper. When the "pilot
hole" is almost as deep as the anchor will eventually go, pour water
down the hole, wait a few minutes, and repeat a few times.

Aim is to saturate the walls of the pilot hole, making insertion of
the screw anchor easy. When the water later evaporates, the anchor
will be firmly locked.

Bob

On 3/24/2016 3:35 PM, Bob Gibbons wrote:
On Thu, 24 Mar 2016 05:14:15 -0700 (PDT), wrote:

http://www.mcmaster.com/#earth-anchors/=11oe1od

The 15" anchors won't do the job, but the 48" x 6" anchors will survive almost
anything as long as the ground in your area is soft enough to be able to screw
these in. Very inexpensive.

On the off chance that not everyone is aware of the key to screwing in
these ground anchors in hard soil ...

Take a long piece of rebar, about as long as the anchor. Slowly hammer
this into the ground at the selected spot. Alternately hammer, then
withdraw, slowly extending the pilot hole deeper. When the "pilot
hole" is almost as deep as the anchor will eventually go, pour water
down the hole, wait a few minutes, and repeat a few times.

Aim is to saturate the walls of the pilot hole, making insertion of
the screw anchor easy. When the water later evaporates, the anchor
will be firmly locked.

Bob



Manually screwing a sizable screw anchor into the ground is at least a
2-man job. Borrow a long steel bar to use as a lever. Have one person
hold the anchor upright, while the other pulls the lever around in a
circle capstan-style. At some point, it will become hard or even
impossible to turn the anchor. Now have the second person tap the
anchor down into the ground with a sledge, whilst the first person is
trying to turn the bar. In Florida soil we get about 1/4 turn for each
hit of the sledgehammer. Your mileage WILL vary, depending on your soil
conditions.

Vaughn