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Re: Airheart
Mike Steinsland
That's what I found out ....hoping someone like Jay has one they're not going to use otherwise I'll look at some other go kart master cylinder like MCP
On Mon, Mar 29, 2021 at 8:06 PM Sam Hoskins <sam.hoskins@...> wrote:
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Fire Extinguisher location
Here is my fire extinguisher location. The newer extinguisher is a bit taller than the original. Just measured twice and cut out a box and matching hole and glassed it in place. Not rocket science.
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Re: Airheart
Horde your parts, the factory is no longer making our stuff. Maybe knockoffs are out there. Sam
On Mon, Mar 29, 2021, 1:36 PM Mike Steinsland <MIKESKUSTOMS@...> wrote: Hi guys,
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Re: Resin volume placed on foam
Both are used..slight vacuum and pressure are applied using pre-pregs. It's called porosity in the industry lingo. The layups are guiding the mechanic by laser light. They don't have time to mark shit with tape or other.. there are also cutting programs..
Gerber machines are the popular one. So 40 or 50 techs are all working in the Oopma Loompa fashion in a freezing cold room. They also do the peel ply layup as part of the schedule before bag and vacuum.
The autoclave cure programming is based on the type of resin (how fast it reaches a rubbery condition from a runny thin viscosity) and the ply schedule (numbers of) and type and shape of core, and if film adhesive is used (almost always is used now). Some
plys are also bonding (such as electrical) for lightning strike..imbedded in those carbon fiber pre-preg is thin copper mesh. Use the wrong program and the autoclave will for sure create junk parts. All that previous work is lost effort..and a ton of money
tossed out as well.
I don't know about spacecraft composites (Charlie does..he worked in that world for years) but aluminum mesh was the standard many years ago in aircraft. The inherent problems of galvanic corrosion using aluminum mesh for strike path made the copper mesh
preferred, and because airplanes in general are considered a reusable machine, they (hopefully) live many decades. Rockets and missiles are (until recently) good for one trip..and weight is SUPER critical to even make the mission possible. Copper is heavier
and more expensive but delams are not good in any load bearing structure.
If your rich you don't care if the airplane costs 30 grand more..better it not break or go POOF! in a lightning strike.
In some processes we also used pre autoclave ovens...where vacuum only was used. Possibly, in the home shop environment, this process is usable (no foams...so other than layup only parts, now your into buying core and cutting that messy crap..better to just
buy flat panels already cured, just do the edge fill and insert potting yourself). The advantage of the pre-preg is 100% you know the resin is saturated. BUT..it is a PAIN to deal with. Clean room and working with gloved hands ALL the time..and freezers...gotta
have them to keep the temp low until it is time to "shake n bake'. Humidity too..you have to control all parts of the work environment.
The bottom line is; you are correct that all of this background is only superficially related to what is reasonably possible in the home shop environment, Rob. It is correct that bleeder that is "thirsty" will draw your layup dry.
Even if I had the money to build what is required to do these same processes, I doubt my neighbors would appreciate it if they knew I had something like this next door.
 
Years ago my desk was about 50 paces from this same Autoclave when I was on Contract as R&D Manufacturing Engineering on the Beech Premier program in Plant 3.
It go Boom!!! Thanks be to God no deaths..but serious injury was still the result.
Most of the Starship major parts were cured in this same Autoclave. This one is considered a baby now...think about how big the Airbus and Spirit/Boeing Autoclaves are!!
Vern
From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Rob de Bie <robdebie@...>
Sent: Monday, March 29, 2021 3:30 PM To: main@Q-List.groups.io <main@Q-List.groups.io> Subject: Re: [Q-List] Resin volume placed on foam I really like this as a thought experiment. And I see some parallels with autoclave processes. In an
autoclave you can apply pressure without the vacuum turned on. Therefore this is sort of similar to what you propose. I haven't figured out yet whether this leads to different amount of resin flowing into the bleeder - but my gut feeling says it will have a considerable effect. And now that I'm thinking about it, a typical autoclave pressure *could* make the resin absorb small air bubbles. At least that's what I see in resin casting, using polyurethane resin. In that process one can take one of two very different routes: vacuum casting or pressure casting. In former you 'pull out' the air bubbles, in the latter the pressure makes the resin absorb the air bubbles. Until tonight I hadn't seen the parallel. But it has nothing to with building a Q1 or Q2 :-) Rob On 27 Mar 2021 21:40, Bruce Crain wrote: > Just a thought. Would it help to vacuum bag parts and then put sand or lead on top of the outside > bagging material to use weight to press the resin and glass together tighter into the weave? It > would be messy and you would have to keep the mold from creeping but what does the group think and > does any one have any experience to share about that? Just thinking outside the box. > Bruce Crain > > ---------- Original Message ---------- > From: "Stuart Grant" <smgrant@...> > To: main@Q-List.groups.io > Subject: Re: [Q-List] Resin volume placed on foam > Date: Sat, 27 Mar 2021 07:18:37 -0700 > > Here is a link to a YouTube video where Cozy Girrl Randi explains about how Cozy Girrls make > composite parts, including mixing epoxy, mixing micro, using gloves, low pressure vacuum bagging, > peel ply, sanding etc. The video was recorded at Sun-N-Fun 2019 and the beginning has a lot of noise > from the air show but Randi has great tips. https://youtu.be/fmuDOWTr_3c <https://youtu.be/fmuDOWTr_3c> > If the link doesn't work search YouTube for > > > Cozy Girrrl's LoVac Composite Tools & Tricks > > > >
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Re: Airheart
Mike Steinsland
Great Let me know
On Mon., Mar. 29, 2021, 2:50 p.m. Jay Scheevel, <jay@...> wrote:
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Extinguisher
gbrighton@...
Had Smoke Smell in Flt last wk ... Landed ok .. and found Auto Pilot Servo circuit Board Cooked ... luckily stayed within its metal container .. photo from the top shows some of the evidence ... stuff happens !!
Cheers, Graham This email has been checked for viruses by AVG.
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Re: Resin volume placed on foam
Rob de Bie
I really like this as a thought experiment. And I see some parallels with autoclave processes. In an autoclave you can apply pressure without the vacuum turned on. Therefore this is sort of similar to what you propose. I haven't figured out yet whether this leads to different amount of resin flowing into the bleeder - but my gut feeling says it will have a considerable effect.
toggle quoted messageShow quoted text
And now that I'm thinking about it, a typical autoclave pressure *could* make the resin absorb small air bubbles. At least that's what I see in resin casting, using polyurethane resin. In that process one can take one of two very different routes: vacuum casting or pressure casting. In former you 'pull out' the air bubbles, in the latter the pressure makes the resin absorb the air bubbles. Until tonight I hadn't seen the parallel. But it has nothing to with building a Q1 or Q2 :-) Rob
On 27 Mar 2021 21:40, Bruce Crain wrote:
Just a thought. Would it help to vacuum bag parts and then put sand or lead on top of the outside bagging material to use weight to press the resin and glass together tighter into the weave? It would be messy and you would have to keep the mold from creeping but what does the group think and does any one have any experience to share about that? Just thinking outside the box.
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Re: Airheart
I might have one (36 years new) never used from my original kit. I will have a look at home.
Cheers, Jay
From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Mike Steinsland
Hi guys,
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Airheart
Mike Steinsland
Hi guys,
I've decided to go with finger brakes on my Q2. I've got 1 Airheart master cylinder but am going to need another. Does anyone have one they want to sell or know where I can find one? Cheers Mike
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Re: Fire Extinguisher
A couple of pillows, a nice throw and an end table. But it wouldn’t be complete without a remote switcher caddy.
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On Mar 28, 2021, at 7:42 PM, Bruce Crain <jcrain2@...> wrote:
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Re: Fire Extinguisher
Jerry means light weight.
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Bruce
On Mar 28, 2021, at 8:53 PM, Jerry Marstall <jerrylm1986@...> wrote:
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Re: Fire Extinguisher
Jerry Marstall
I don't know. One has to put praise upon the Hoskins Hammock interior. It's so, ah, ah . . . . . .
On Sun, Mar 28, 2021, 8:41 PM Mike Dwyer <q200pilot@...> wrote:
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Re: Fire Extinguisher
Mike Dwyer
I think Jim should get the"best interior design" award. Mike Dwyer
On Sun, Mar 28, 2021, 4:20 PM Jim Patillo <Logistics_engineering@...> wrote:
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Re: Extinguishers
Martin Skiby
That’s a great idea. We put ours in the cubby above the main wing in the Tri-Q and in the Q200 just between the seats on the bulkhead.
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Martin
On Mar 28, 2021, at 3:04 PM, gbrighton@... wrote:
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Re: Resin volume placed on foam
Nice! I knew I hadn’t dreamed it but never knew anyone that used sand/shot bags! Bruce
On Mar 28, 2021, at 11:26 AM, Jerry Marstall <jerrylm1986@...> wrote:
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Re: Extinguishers
gbrighton@...
Chris,
We aren't required to carry a F/Extinguisher in Oz .. but a Pilot friend mentioned to me he came across a ... like Mini .. hand held F/Extinguisher .. that sounded good for a/craft use .. its a small hand held unit that is ok for Electrical and Petrol ... has the potential 'early/small' cockpit fire suppression .. with out maybe choking the Cockpit ... he has ordered .. but the suppler is waiting for stock .. im wanting to check it out when he receives his .. but a google search should reveal all .., Cheers Graham -------------------------------------------------- From: "Dorothea Keats" <dkeats@...> Sent: Monday, March 29, 2021 12:15 AM To: <main@Q-List.groups.io> Subject: [Q-List] Extinguishers Any suggestions for placement of the fire extinguishers? The rule say it needs to be accessible by the pilot with his seat belt on.
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Fire Extinguisher
 N46JP Q200
Sent from Outer Space
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Re: Extinguishers
Mike Steinsland
Anybody consider installing a horizontal tube in the seat bulkhead between the seats and shoving it in there?
On Sun., Mar. 28, 2021, 2:35 p.m. Richard Thomson, <richard@...> wrote: I noticed that Corbin has his between the seats so it is padded by
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Re: Flight report
Good advice Jay, Nice report. Rich T.
On 27/03/2021 22:19, Jay Scheevel
wrote:
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Re: Extinguishers
I noticed that Corbin has his between the seats so it is padded by them to an extent.
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Looks like the same extinquisher as mine so going with that for me too. Jim P also but slightly higher. Rich T.
On 28/03/2021 16:28, Jay Scheevel wrote:
I have mine in the quick-release mount on the back side of the passenger seat back. Could be an issue if the passenger is in the plane, but so far, that has not happened. I can easily tilt that forward in flight and remove it with one hand. I may find a different place for it if I start flying passengers.
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