Pilot bushings

[Alex Wheeler]

I thought the first rule of boreriders was NOT to talk about boreriders...

Shhh...

They have pros and cons. I have played with them a little and have throaters to put them in anything. Personally I dont use them. Unless thats what the customer really wants.

 

[Dusty Stevens]

Any certificated aircraft has the stamp of an IA and an A&P on its log books. From a J-3 to the Concord, they are all required to have their signatures (in one way or another) before they can fly.

What about the chinese spy balloon over montana right now? Why are we just letting it fly over our country when we’ve known about it for a week?

 

[LVLAaron]

I'm assuming those that ascribe to the "no pilot" school (pun intended, enrolled in ground school ),
buy solid pilot reamers? It's rare that I've run into a groove dia more than a half thou under- so why spend the $$ for a live pilot?

Just got home from air school.

I like having options.

 

[Dusty Stevens]

No doubt. Unlike a pre-bored hole, nothing to guide the cutter; it's just wobbling around in the hole if using a floating holder. Been meaning to ask Manson if they could grind a form cutter for a recessed target crown, it'd be a big time saver...

I've also ascribed to the theory that that a properly fitted pilot prevents chatter, but I haven't had the balls yet to chamber without one and risk a $3-$400 blank. I see GM has some back in stock so one of them would be a cheaper learning experience.

I'm assuming those that ascribe to the "no pilot" school (pun intended, enrolled in ground school ),
buy solid pilot reamers? It's rare that I've run into a groove dia more than a half thou under- so why spend the $$ for a live pilot?

Why would you get a crown cutter if you have a lathe? Those are for hacksaws and drill barrel shortening

 

[LVLAaron]

What about the chinese spy balloon over montana right now? Why are we just letting it fly over our country when we’ve known about it for a week?

 

[Dusty Stevens]

View attachment 1406794

He aint got enough sense to be a spy. They dont have swalwell on the inside now so they gotta send a balloon over

 

[LVLAaron]

I'd laugh if I didn't think it could be true.

 

[Henryrifle]

Not trying to be a downer now that the thread has drifted in all kinds of directions but want to risk saying that I believe I get it. This is just one of many possible successful strategies. Here goes...

If you indicate off the grooves knowing that there is minimal to no run-out starting at the throat and forward into the rifling for an inch or so, AND you've drilled and pre-bored and are satisfied that the pre-bored area is concentric and without runout to the throat and that same inch or so forward, THEN a loose busing or no busing is the way to use the reamer because you don't want the pilot to possibly move the reamer around as it contacts the lands (which you haven't indicated) and that is especially true if your pilot extends into an area that you have not indicated at all.

I think that is what I learned from @Alex Wheeler in the first post of this hot mess of a thread...

I nailed that didn't I?

Hank

 

[INTJ]

Any certificated aircraft has the stamp of an IA and an A&P on its log books. From a J-3 to the Concord, they are all required to have their signatures (in one way or another) before they can fly.

Didn't have any IAs or A&Ps sign off or work on the planes that I have the vast majority of my time in.

 

[INTJ]

As far as flying. I recently joined Civil Air Patrol. During my entire 24 years as a USAF pilot I thought CAP was just a bunch of kids marching around, and the plane they had was for orientation rides and the occasional search flight.

Turns our CAP is the primary search arm of the federal government. They operate the largest fleet of Cessna aircraft in the country. Most are newer. My squadron has a 2021 model 182 with a Garmin-1000 and all of 300 hours on it. They are very well maintained, and CAP seems to have a muck lower accident rate than General Aviation.

They are a pseudo military organization, with the all too familiar red tape; but they do let you fly newer airplanes for free. I think a 2021 model 182 with a G-1000 would rent for close to $300 per hour.

 

[Dusty Stevens]

As far as flying. I recently joined Civil Air Patrol. During my entire 24 years as a USAF pilot I thought CAP was just a bunch of kids marching around, and the plane they had was for orientation rides and the occasional search flight.

Turns our CAP is the primary search arm of the federal government. They operate the largest fleet of Cessna aircraft in the country. Most are newer. My squadron has a 2021 model 182 with a Garmin-1000 and all of 300 hours on it. They are very well maintained, and CAP seems to have a muck lower accident rate than General Aviation.

They are a pseudo military organization, with the all too familiar red tape; but they do let you fly newer airplanes for free. I think a 2021 model 182 with a G-1000 would rent for close to $300 per hour.

We have 206’s and 210’s around here

 

[tobnpr]

Why would you get a crown cutter if you have a lathe? Those are for hacksaws and drill barrel shortening

We use form cutters for chambering- why should I have a problem crowning a barrel with one?

 

[Bob3700]

Didn't have any IAs or A&Ps sign off or work on the planes that I have the vast majority of my time in.

The majority of military aircraft are not FAA certificated. Therefore no A&P required. The military designed aircraft do not have to undergo the same certification process as civilian ones do. That is why when u see warbirds at Airshows by the entrance/cockpit they are labeled experimental, or restrictEd and have restrictions on how n where they can be flown. Check it out , it’s all in the FARs.
s
Sorry for the sidebar, should have do this in a pm.

Bob

 

[INTJ]

We have 206’s and 210’s around here

The wing here has a 206 as well.

 

[INTJ]

The majority of military aircraft are not FAA certificated. Therefore no A&P required. The military designed aircraft do not have to undergo the same certification process as civilian ones do. That is why when u see warbirds at Airshows by the entrance/cockpit they are labeled experimental, or restrictEd and have restrictions on how n where they can be flown. Check it out , it’s all in the FARs.
s
Sorry for the sidebar, should have do this in a pm.

Bob

Yes, I am extremely well versed in all of this. I was just poking at you a bit for the A&P comment--that I don't disagree with--as those with my personality type are known to do......

 

[LVLAaron]

We're gonna need a pilot subforum

 

[X Count]

What's your thought on pre DRILLING then using a piloted reamer against a dead centre to form cut a tapered hole then switching to a floating reamer holder and removing the pilot to do the rest. Sounds really messed up but I've seen the results

 

[INTJ]

Or if you are truly of the Order of Testiclees--the great Greek philosopher, you cut the entire chamber with a boring bar in a rigid setup. Subtle double entendre intended.....

 

[jkohler]

I wouldn’t go reaming a hole that’s been drilled and trust squat to be true.

 

[WSnyder]

Or if you are truly of the Order of Testiclees--the great Greek philosopher, you cut the entire chamber with a boring bar in a rigid setup. Subtle double entendre intended.....

Well Phil “4Mesh” a past successful 1K competitor used to do just about that. He did pretty well CNC’ing his chambers with a boring bar. He also made his own sizing dies and his own version of a Lee collet die. I believe at one point he stated he had never used a chamber reamer.