![]() |
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
|
|||
|
|||
![]() Yesterday, according to the news, a pilot and his grandson walked away from a crashed Lancair after it had an electrical failure on takeoff and made a gear-up crash landing. Question: Do Lancairs not have a hydraulic dump or something to lower the gear in the event of such a failure? -c |
#2
|
|||
|
|||
![]()
"gatt" wrote in message
... Yesterday, according to the news, a pilot and his grandson walked away from a crashed Lancair after it had an electrical failure on takeoff and made a gear-up crash landing. Question: Do Lancairs not have a hydraulic dump or something to lower the gear in the event of such a failure? What type of Lancair? If the certified Columbia, they must. From FAR 23.729: (c) Emergency operation. For a landplane having retractable landing gear that cannot be extended manually, there must be means to extend the landing gear in the event of either— (1) Any reasonably probable failure in the normal landing gear operation system; or (2) Any reasonably probable failure in a power source that would prevent the operation of the normal landing gear operation system Since an electrical failure would be a "reasonably probably failure in a power source...", a Columbia must have some sort of backup gear operation system. I'm less sure of how the experimental rules work, but I wouldn't be surprised if one still needs some sort of backup operation system for the gear, even for amateur-built experimentals. Pete |
#3
|
|||
|
|||
![]() "Peter Duniho" wrote in message ... Question: Do Lancairs not have a hydraulic dump or something to lower the gear in the event of such a failure? What type of Lancair? If the certified Columbia, they must. From FAR 23.729: Don't know. Ironically, I can't find the story in any of the local news sources. They showed it on the 11 o'clock news last night, but that's the last I've heard of it. Everything forward of the firewall looked crushed and knocked 90 degrees to the side and the pilot looked like, well, he'd just narrowly survived a crash with his grandson on board. Bigger news, though, that fits the Dirty Laundry bill was a woman who fell asleep at the wheel of her RV and rolled it on I-84 and another where a guy was crushed by a rolling car which was in Park and had its emergency brake on. (?!) -c |
#4
|
|||
|
|||
![]()
"Richard Riley" wrote in message
... The Columbia does NOT have a backup gear operation system. Never has, probably never will. Hmmm...I thought they had released a retractable version recently. Wonder where I got that idea. In that case, then the rules for experimentals would apply...like I said, I'm less familiar with those rules. It surprises me that the basic certification standards for the amateur-built category aren't more similar to Part 23, but if it happens that they aren't, I don't have any first-hand knowledge that would contradict that. Pete |
#5
|
|||
|
|||
![]()
On Mon, 23 Oct 2006 11:47:24 -0700, "Peter Duniho"
wrote: "gatt" wrote in message ... Yesterday, according to the news, a pilot and his grandson walked away from a crashed Lancair after it had an electrical failure on takeoff and made a gear-up crash landing. Question: Do Lancairs not have a hydraulic dump or something to lower the gear in the event of such a failure? What type of Lancair? If the certified Columbia, they must. From FAR 23.729: (c) Emergency operation. For a landplane having retractable landing gear that cannot be extended manually, there must be I'm not sure about this wording or if I'm missing something, but on a Bonanza you only have two choices. The normal electric method and manually. If the electric fails you must extend the gear manually and if you are on take off when this happens forget even trying. It takes 51 turns of a little gear handle and about two minutes to manually extend the gear on a Bo. Oh..and to do so the pilot must lean over and back between the seats to turn that little crank. That means your head is below the bottom of the instrument panel. You best know how to fly instruments or you will get a lot of exercise by leaning over, make a turn (once the gear door is open you can only do a half turn at a time although if you are fast you can get in two half turns) and then straighten back up to look outside. That is a *LOT* of sideways sit ups! Also it behooves the pilot to keep the speed well below the maximum for gear extension but high enough to be safe. Near the maximum that little handle is nigh onto impossible to turn. If the gear won't come down and you are coming into a controlled airport you might just as well tell them the problem and then fly out where you have time and room to crank the gear down and stay out of every one else's way. means to extend the landing gear in the event of either— (1) Any reasonably probable failure in the normal landing gear operation system; or (2) Any reasonably probable failure in a power source that would prevent the operation of the normal landing gear operation system Which means lowering the gear manually, but that is referred to in the first sentence. Since an electrical failure would be a "reasonably probably failure in a power source...", a Columbia must have some sort of backup gear operation system. I'm less sure of how the experimental rules work, but I wouldn't be surprised if one still needs some sort of backup operation system for the gear, even for amateur-built experimentals. The Twin Comanche had the simplest emergency gear operation. Pull the handle the gravity pulls the gear down. Pete Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com |
#6
|
|||
|
|||
![]() "Peter Duniho" wrote in message ... "Richard Riley" wrote in message ... The Columbia does NOT have a backup gear operation system. Never has, probably never will. Hmmm...I thought they had released a retractable version recently. Wonder where I got that idea. In that case, then the rules for experimentals would apply...like I said, I'm less familiar with those rules. It surprises me that the basic certification standards for the amateur-built category aren't more similar to Part 23, but if it happens that they aren't, I don't have any first-hand knowledge that would contradict that. Providing you can demonstrate compliance to the 51% rule, you can add seatbelts, an N number, and the proper instrumentation to your barca-lounger and get it "certified" as an experimental-amateur built. You'll have to add a transponder, encoder, and a radio to fly it into Class B airspace. If you deem the instrumentation adequate, you'll be able to fly it IFR as long as you get the rating and the pitot/static/transponder passes the annual IFR recertification test. There are very few rules governing experimentals. This is a good thing if you believe in self determination. Members of the "we have to be protected against ourselves crowd" are probably not as appreciative. KB |
#7
|
|||
|
|||
![]() "gatt" wrote in message ... :: Don't know. Ironically, I can't find the story in any of the local news : sources. They showed it on the 11 o'clock news last night, but that's the : last I've heard of it. Everything forward of the firewall looked crushed : and knocked 90 degrees to the side and the pilot looked like, well, he'd : just narrowly survived a crash with his grandson on board. : : not on the news cuz nobody died, doesn't fit the airplanes are not safe profile... |
#8
|
|||
|
|||
![]() Roger (K8RI) wrote: The Twin Comanche had the simplest emergency gear operation. Pull the handle the gravity pulls the gear down. Not unlike any other retractable gear Piper built since the 60's IIRC... |
#9
|
|||
|
|||
![]()
On Mon, 23 Oct 2006 08:35:48 -0700, "gatt"
wrote: Yesterday, according to the news, a pilot and his grandson walked away from a crashed Lancair after it had an electrical failure on takeoff and made a gear-up crash landing. Question: Do Lancairs not have a hydraulic dump or something to lower the gear in the event of such a failure? The following, posted on a local aviation forum by a friend of the pilot, may help: -------------------------------------------------------------- "During the flight, he experienced total electrical failure. An emergency, yes, but not something that would cause the airplane to fall out of the sky. He headed back to Scappoose, where he entered the downwind. He turned base then final, visually clearing each leg, as his radio was not working. He DID extend the gear by using the emergency extension, which on that airplane is simply a lever that allows the gear to free-fall. Upon VERY short final, he noticed an airplane on the runway. He quickly side-stepped the runway to land on the grass. At the same moment, he added full power to initiate a go-around. The immediate torque of the engine caused a left bank and descent. The airplane hit the ground in a left wing low attitude. It cartwheeled on the left wingtip, smashing the nose into the ground. At that point, the airplane came to rest on its belly. The gear was down, but got torn off by the impact....Everyone is fine, but the plane is totaled." ------------------------------------------------------------------ Ron Wanttaja |
#10
|
|||
|
|||
![]()
Recently, Ron Wanttaja posted:
The following, posted on a local aviation forum by a friend of the pilot, may help: Any word on who the pilot is? Neil |
|
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
VQ-1's P4M-1Q crash off China - 1956 | Mike | Naval Aviation | 0 | May 6th 06 11:13 PM |
Pilot claims no blame in July crash | Mortimer Schnerd, RN | Piloting | 48 | March 15th 06 09:00 PM |
Air Force One Had to Intercept Some Inadvertent Flyers / How? | Rick Umali | Piloting | 29 | February 15th 06 04:40 AM |
Doubts raised in jet crash | Dave Butler | Piloting | 8 | July 26th 05 01:25 AM |
Yet another A36 crash | H.P. | Piloting | 10 | April 23rd 05 05:58 PM |