I'll ditto that,
In my previous airplane, the C-150 Aerobat, I used to do them a lot also, but have only done them a very few times in the Gull, and I don't do them anymore. The Gull performs pretty good, but real aerobatic airplanes are built extremely strong, such as one of my friend's Sonex that he just bought. It's a 650lb airplane empty, and the wing design was tested to 11g's. The whole plane is built like a little Mack truck, even though it only has an 80hp VW engine powering it, and our planes will outclimb it.
I really like my Gull for what it does. Fast, nimble, and great visibility, with only 52hp giving me an honest 100mph cruise.
Thanks Mark for a great plane!
kb
BRS Soft Pack and the JT2
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blaswichk
Re: BRS Soft Pack and the JT2
Fred,
I'm finally posting the picture of the inside mounting of the BRS ballistic chute in my buddies JT2. For me, it's not only close to the engine, so you would want to make sure the prop is stopped, but it's right over the fuel tank and plumbing, and that would make me want to ask Mark more about that kind of installation,
kb
I'm finally posting the picture of the inside mounting of the BRS ballistic chute in my buddies JT2. For me, it's not only close to the engine, so you would want to make sure the prop is stopped, but it's right over the fuel tank and plumbing, and that would make me want to ask Mark more about that kind of installation,
kb
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earthstaraircraft
Re: BRS Soft Pack and the JT2
In a message dated 2/12/2011 6:57:06 PM Pacific Standard Time,
kessb@wavecable.com writes:
Fred,
I'm finally posting the picture of the inside mounting of the BRS
ballistic chute in my buddies JT2. For me, it's not only close to the engine, so
you would want to make sure the prop is stopped, but it's right over the fuel
tank and plumbing, and that would make me want to ask Mark more about that
kind of installation,
kb
Hi Kess
We did a test fire in that position, wile filming at 2000 frames per sec
ond.
The flame was only visible for 1 frame. Not enough time to even mark the
fabric.
Its not a problem in that position.
Happy Flying
Mark
kessb@wavecable.com writes:
Fred,
I'm finally posting the picture of the inside mounting of the BRS
ballistic chute in my buddies JT2. For me, it's not only close to the engine, so
you would want to make sure the prop is stopped, but it's right over the fuel
tank and plumbing, and that would make me want to ask Mark more about that
kind of installation,
kb
Hi Kess
We did a test fire in that position, wile filming at 2000 frames per sec
ond.
The flame was only visible for 1 frame. Not enough time to even mark the
fabric.
Its not a problem in that position.
Happy Flying
Mark
-
blaswichk
Re: BRS Soft Pack and the JT2
Mark, thanks for your experience on this, it's great to keep learning about our planes.
Speaking of test firing, have you ever done in on the Gull 2000? I can see that once the rocket is outside the airplane and the lanyard starts to tension, that it will break some fiberglass in the process. I also notice that the cover has little clips to keep it in place, and a thin seal of silicone around the outside edge, which looks like it should blow away when the rocket is fired. Just makes me nervous about if I had to fire it with that thing going off between my legs, and praying that the cover will blow and not let the rocket loose in the cockpit. In my buddies (Salvadore) 'J', ( yes it's not a JT2 that I stated last time), the whole top of the cockpit under the engine is open, and there is nothing in the way.
kb
Speaking of test firing, have you ever done in on the Gull 2000? I can see that once the rocket is outside the airplane and the lanyard starts to tension, that it will break some fiberglass in the process. I also notice that the cover has little clips to keep it in place, and a thin seal of silicone around the outside edge, which looks like it should blow away when the rocket is fired. Just makes me nervous about if I had to fire it with that thing going off between my legs, and praying that the cover will blow and not let the rocket loose in the cockpit. In my buddies (Salvadore) 'J', ( yes it's not a JT2 that I stated last time), the whole top of the cockpit under the engine is open, and there is nothing in the way.
kb
-
earthstaraircraft
Re: BRS Soft Pack and the JT2
In a message dated 2/14/2011 10:11:33 PM Pacific Standard Time,
kessb@wavecable.com writes:
Speaking of test firing, have you ever done in on the Gull 2000? I can
see that once the rocket is outside the airplane and the lanyard starts to
tension, that it will break some fiberglass in the process. I also notice
that the cover has little clips to keep it in place, and a thin seal of
silicone around the outside edge, which looks like it should blow away when the
rocket is fired. Just makes me nervous about if I had to fire it with that
thing going off between my legs, and praying that the cover will blow and
not let the rocket loose in the cockpit. In my buddies (Salvadore) 'J', ( yes
it's not a JT2 that I stated last time), the whole top of the cockpit
under the engine is open, and there is nothing in the way.
kb
Hi Kess
No we have not done any test firings on the Gull 2000. it is such a
straight forward system that i don't think that an expensive test is needed.
there is no fiberglass parts that will be broken, It can even be fired on the
ground and it would fully deploy. it is also far enough from the prop to
deploy with out the engine shut off but of course I would shut off the engine
first is time was available.
Happy Flying
Mark
kessb@wavecable.com writes:
Speaking of test firing, have you ever done in on the Gull 2000? I can
see that once the rocket is outside the airplane and the lanyard starts to
tension, that it will break some fiberglass in the process. I also notice
that the cover has little clips to keep it in place, and a thin seal of
silicone around the outside edge, which looks like it should blow away when the
rocket is fired. Just makes me nervous about if I had to fire it with that
thing going off between my legs, and praying that the cover will blow and
not let the rocket loose in the cockpit. In my buddies (Salvadore) 'J', ( yes
it's not a JT2 that I stated last time), the whole top of the cockpit
under the engine is open, and there is nothing in the way.
kb
Hi Kess
No we have not done any test firings on the Gull 2000. it is such a
straight forward system that i don't think that an expensive test is needed.
there is no fiberglass parts that will be broken, It can even be fired on the
ground and it would fully deploy. it is also far enough from the prop to
deploy with out the engine shut off but of course I would shut off the engine
first is time was available.
Happy Flying
Mark
-
fgayford
Re: BRS Soft Pack and the JT2
Hi Kess
I was talking to BRS about the kind of force the rocket can deliver. It will blow through a sheet of lexan. They include a sheet when you buy a parachute. They said that if you can punch a hole through a panel with your fist your panel is ok.( a real mans fist, not a wimps fist)
Fred
I was talking to BRS about the kind of force the rocket can deliver. It will blow through a sheet of lexan. They include a sheet when you buy a parachute. They said that if you can punch a hole through a panel with your fist your panel is ok.( a real mans fist, not a wimps fist)
Fred
-
blaswichk
Re: BRS Soft Pack and the JT2
Thanks Fred,
I'm still a little concerned about the cover. If it is too secure, and given the angle in which it's mounted, the rocket might deflect off the backside, and come right through the instrument panel,..................or not. Something to think about before pulling the handle. Unless I've broke a wing or jammed a control, I'm gliding the plane down to whatever is there. If the parachute is deployed, the plane will land on whatever is there, but at least it won't be straight in.
kb
I'm still a little concerned about the cover. If it is too secure, and given the angle in which it's mounted, the rocket might deflect off the backside, and come right through the instrument panel,..................or not. Something to think about before pulling the handle. Unless I've broke a wing or jammed a control, I'm gliding the plane down to whatever is there. If the parachute is deployed, the plane will land on whatever is there, but at least it won't be straight in.
kb
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fgayford
Re: BRS Soft Pack and the JT2
Hi Kess
I also read about one BRS save where the wing folded up over the rocket before it was activated. The rocket went through both sides of the wing as well has hitting the spar tube on its way out.
You would probably build up a little more faith in your BRS if you read some of the saves on the BRS site.
Looking at the tabs in the front of the gull 2000 holding the cover on, I would think that they would snap like popsicle sticks under a high speed velocity impact. But will hold fine under normal flying.
Fred
I also read about one BRS save where the wing folded up over the rocket before it was activated. The rocket went through both sides of the wing as well has hitting the spar tube on its way out.
You would probably build up a little more faith in your BRS if you read some of the saves on the BRS site.
Looking at the tabs in the front of the gull 2000 holding the cover on, I would think that they would snap like popsicle sticks under a high speed velocity impact. But will hold fine under normal flying.
Fred
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fgayford
Re: BRS Soft Pack and the JT2
Another thought that comes to mind. Ever try pushing a 2x4 through a cement block way. Even with 10 guys you cannot do it.
Ever seen one of those 2x4 cannons that show what a 2x4 can do in a wind storm directed at the same cement block wall. Goes through no problem.
I think that is what is going on with the speed of the rocket.
Fred
Ever seen one of those 2x4 cannons that show what a 2x4 can do in a wind storm directed at the same cement block wall. Goes through no problem.
I think that is what is going on with the speed of the rocket.
Fred