![]() |
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
![]()
"son_of_flubber" wrote in message
snip ...Why not equip gliders (with a turn and bank indicator) and pilots (with training) to safely handle a few minutes of cloud flying if it is a non-zero possibility On Monday, February 25, 2013 10:50:52 AM UTC-5, Dan Marotta wrote: That's a pretty naive question. Pretty much ALL of my questions are naive due to my lack of much experience and training. It's good for me to reminded of that from time to time. Thanks for your answer. |
#2
|
|||
|
|||
![]()
I meant no disrespect with my reply and I hope none was taken.
Way back when, I tried the "benign spiral" in my LS-6a. I found it to be dynamically unstable in pitch and, after a few cycles without touching the stick, it was ready to loop or break Vne. I know another glider pilot who told me that he entered a cumulus cloud in a 1-26, had a great climb, and flew out the side of the cloud. He tried it again and came out the bottom of the cloud inverted. He was an Air Force fighter pilot so unusual attitudes were no stranger to him. It can be done, but it can also cause a bent aircraft. It's just not worth it to me so I'll keep my eyes open for opportunities to get drawn into a cloud or caught on top and avoid them. "son_of_flubber" wrote in message ... "son_of_flubber" wrote in message snip ...Why not equip gliders (with a turn and bank indicator) and pilots (with training) to safely handle a few minutes of cloud flying if it is a non-zero possibility On Monday, February 25, 2013 10:50:52 AM UTC-5, Dan Marotta wrote: That's a pretty naive question. Pretty much ALL of my questions are naive due to my lack of much experience and training. It's good for me to reminded of that from time to time. Thanks for your answer. |
#3
|
|||
|
|||
![]()
On Monday, February 25, 2013 5:04:31 PM UTC-7, Dan Marotta wrote:
Way back when, I tried the "benign spiral" in my LS-6a. I found it to be dynamically unstable in pitch and, after a few cycles without touching the stick, it was ready to loop or break Vne. Did you use full dive brakes? |
#4
|
|||
|
|||
![]() "Bill D" wrote in message ... On Monday, February 25, 2013 5:04:31 PM UTC-7, Dan Marotta wrote: Way back when, I tried the "benign spiral" in my LS-6a. I found it to be dynamically unstable in pitch and, after a few cycles without touching the stick, it was ready to loop or break Vne. Did you use full dive brakes? To tell the truth, I don't recall - probably not. I think I used the published (in Soaring) procedure but I don't remember if it called for full dive brakes. |
#5
|
|||
|
|||
![]()
On Tuesday, February 26, 2013 9:47:24 AM UTC-7, Dan Marotta wrote:
"Bill D" wrote in message ... On Monday, February 25, 2013 5:04:31 PM UTC-7, Dan Marotta wrote: Way back when, I tried the "benign spiral" in my LS-6a. I found it to be dynamically unstable in pitch and, after a few cycles without touching the stick, it was ready to loop or break Vne. Did you use full dive brakes? To tell the truth, I don't recall - probably not. I think I used the published (in Soaring) procedure but I don't remember if it called for full dive brakes. My understanding of the "benign spiral" is the air brakes MUST be open to stabilize the glider and prevent over speed. |
#6
|
|||
|
|||
![]()
On Tuesday, February 26, 2013 12:14:15 PM UTC-5, Bill D wrote:
My understanding of the "benign spiral" is the air brakes MUST be open to stabilize the glider and prevent over speed. Generally, you want to make the glider as dirty as possible (gear, flaps, spoilers). The point is a descent, after all. Trim probably full aft. A little top rudder can be used to "tune" the turn rate and speed. I've convinced myself of two things w.r.t. the benign spiral in my ship: 1) it will probably work in reasonably smooth air as long as I don't pick up a load of ice, although it's going to get *really* disconcerting when the asi fails due to plugged pitot or static 2) I absolutely do not ever want to be in the position of having to do this for-real through a cloud deck, especially in NH in October (again, ice). Evan Ludeman / T8 |
#7
|
|||
|
|||
![]()
Maybe, just for kicks, I'll try that in my LAK-17a at the end of a wave
flight. "Bill D" wrote in message ... On Tuesday, February 26, 2013 9:47:24 AM UTC-7, Dan Marotta wrote: "Bill D" wrote in message ... On Monday, February 25, 2013 5:04:31 PM UTC-7, Dan Marotta wrote: Way back when, I tried the "benign spiral" in my LS-6a. I found it to be dynamically unstable in pitch and, after a few cycles without touching the stick, it was ready to loop or break Vne. Did you use full dive brakes? To tell the truth, I don't recall - probably not. I think I used the published (in Soaring) procedure but I don't remember if it called for full dive brakes. My understanding of the "benign spiral" is the air brakes MUST be open to stabilize the glider and prevent over speed. |
#8
|
|||
|
|||
![]()
At 00:20 27 February 2013, Dan Marotta wrote:
Maybe, just for kicks, I'll try that in my LAK-17a at the end of a wave flight. "Bill D" wrote in message ... On Tuesday, February 26, 2013 9:47:24 AM UTC-7, Dan Marotta wrote: "Bill D" wrote in message ... On Monday, February 25, 2013 5:04:31 PM UTC-7, Dan Marotta wrote: Way back when, I tried the "benign spiral" in my LS-6a. I found it to be dynamically unstable in pitch and, after a few cycles without touching the stick, it was ready to loop or break Vne. Did you use full dive brakes? To tell the truth, I don't recall - probably not. I think I used the published (in Soaring) procedure but I don't remember if it called for full dive brakes. My understanding of the "benign spiral" is the air brakes MUST be open to stabilize the glider and prevent over speed. A couple of years ago I was in a particulars UK comp called Enterprise I was enjoying the comp and making up the numbers and every one new Justin Wills was going to win ,former world champion and he understands the rules. Could flying is permitted and I know Justin cloud flys because I watched him disappear above .Next day while grid squatting I made a point of looking at Justin's panel ,no horizon but 2 turn and slip. For the many non Brits Enterprise was set up 30 years or so ago as an alternative to circuit racing ,the idea being to get as much out of the day as is possible and the following day Justin and the day winner do an extensive debrief explaining the desitions they made both routing and met so we can all learn and make better desitions .I recommend looking at there web site and you will be able to read the ethos more succinctly I hate this spell checker. |
#9
|
|||
|
|||
![]()
In article son_of_flubber writes:
"son_of_flubber" wrote in message snip ...Why not equip gliders (with a turn and bank indicator) and pilots (with training) to safely handle a few minutes of cloud flying if it is a non-zero possibility On Monday, February 25, 2013 10:50:52 AM UTC-5, Dan Marotta wrote: That's a pretty naive question. Pretty much ALL of my questions are naive due to my lack of much experience and training. It's good for me to reminded of that from time to time. Thanks for your answer. I would agree and disagree with Dan about this. Obvious reasons include expense (gyros are expensive), weight, and power. The training would probably be a big deal as well -- the single engine private pilot requirement is for 3 hours of flight training in manuvering solely by reference to instruments. Even so, the record of accidents after non-instrument rated pilots wander into weather is not good. I think that few would want to mandate these instruments be in gliders. On the other hand, I have read postings describing sudden rain encounters that forced a pilot to suddenly and unexpectedly have to fly by instrument reference, in conditions where visibility had been substantial (perhaps 15 miles) a few instants before. I can see where a running gyro instrument in the panel could be a useful safety instrument for the glider pilot who was also an instrument competent airplane pilot. I would not want to see such be required, but it pains me to see situations where such capability would be disallowed. Alan |
#10
|
|||
|
|||
![]()
Years ago, in a country where cloud flying was legal, I got caught above a layer of low cloud that formed suddenly near a thunderstorm gust front. I descended through the cloud with full brakes, keeping the wings level with the aid of a gyro turn and bank. It was stressful and quite a hairy descent! I was familiar enough with the instrument to survive the encounter, but in the succeeding 30 years flying I have avoided making the same mistake. I would counsel other VFR pilots to avoid this exposure to unnecessary risk..
Mike |
|
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Pulp Fiction, pt 3 - dare devil aces 1943 12.jpg (1/1) | Mitchell Holman | Aviation Photos | 0 | April 4th 07 01:54 PM |
Pulp Fiction, pt 3 - dare devil aces 1934 01.jpg (1/1) | Mitchell Holman | Aviation Photos | 0 | April 4th 07 01:54 PM |
Mounting a turn coordinator on the tail? | Tim Auckland | Instrument Flight Rules | 25 | August 6th 06 06:16 PM |
Is a Turn Coordinator an electric motor or powered by fan? | kickinwing | Piloting | 5 | June 11th 05 12:25 PM |
Opening up a turn coordinator | Robert M. Gary | Piloting | 2 | March 27th 04 06:52 AM |