Air-Brakes Review

[Boo]

When Peter started, the bows were pretty slow. When the Mag Tips were introduced the bow speeds were higher and increasing in the following years. With the increase of speed came less forgiving setups.
When the tiller is off the center of the string will pulled to the direction of the stiffer limb. So if the tiller is off the arrow will want to be dragged off center of the mainframe causing an arrow to depart from the bow askew causing erratic flight. The arrow will first depart from the bow with it's rear end towards the stiff limb and then try to go back to the flight vector and then wobble back and forth before stabilizing. Couple that with a fixed broadhead and you get erratic flight.
So the faster bows cause more string pressure from the string onto the arrow causing more grip at the nock. So that poor nock travel on high poundage bows can cause even greater effect on arrow flight. This is why less poundage bows tend to be more accurate.
Heavier arrows tend to be more accurate because it resists the poor nock travel because of inertia and lighter arrows are easily influenced.
Keep in mind that there's 2 objects exactly alike so there's no 2 limbs precisely the same deflection wise. So it's a matter of degrees not a go/no go situation.
Take my 165 Exocet. The launch is pretty gentle compared to an Excocet 200/Matrix etc. So if my tiller is off the nock travel may be off to one side but the nock will slide along the string and remain inline with the arrow groove of the mainframe.
This business with tiller and speed is exactly why mechanicals work so well. If launched from a bow with poor tiller, the arrow will still come out of the bow askew but having no blades to grip the air, the arrow stabilizes quickly.
Take a bow with poor (to a degree) tiller and shoot it with a field point and you get good accuracy. Put a wide fixed blade on it and you'll get poor accuracy. Of course, really bad tiller gives you bad accuracy with or without fixed broadheads.
Good nock travel is important to all bows, crossbows and vertical bows included.

[xcaliber]

All good stuff, are the Air Brakes any darn good? Who has them, who has Db readings that can be displayed, etc! Lot of money for these, and maybe something not necessarily beneficial. I think the whole limb deflection topic is great, but sort of unrelated in my opinion. Just saying.

[amythntr]

....my only real thought in possibly wanting them is not related to quieting the bow down...so far the deer that I have shot (31 yards or less) have not seemed to mind the sound...

...what I am concerned is will these AB's extend the life of the limbs....

Anthony

[Boo]

...what I am concerned is will these AB's extend the life of the limbs....

Anthony

Because the main effect is noise reduction, the energy effected is dirty energy which is after the arrow leaves the string, so I doubt it will help in that respect Anthony.

[Riflemanz]

I wouldn't buy them but whatever floats your boat!
My deer like noise just before I pop them!

[Silent K]

Hi guys, I am just new to this forum but I have been using it as a "go to" for a lot of great info,so thanks for all of that. My bow is a 355 Matix. I have added the baby bumpers,trigger tech,leupold vendetta and custom string. I have just purchased the Air Brakes but haven't installed them yet. This morning I downloaded a sound level app and my bow is averaging 85db when I install the air brakes I will update. I don't expect any miraculous noise reduction but I am really hoping to reduce vibration to protect the vendetta (I have mine mounted out on the riser) I also installed an Hha optimizer but I am waiting for the extension to come because my rope cocker hits it. I will keep you guys informed.
K.

[bigrak]

Hi guys, I am just new to this forum but I have been using it as a "go to" for a lot of great info,so thanks for all of that. My bow is a 355 Matix. I have added the baby bumpers,trigger tech,leupold vendetta and custom string. I have just purchased the Air Brakes but haven't installed them yet. This morning I downloaded a sound level app and my bow is averaging 85db when I install the air brakes I will update. I don't expect any miraculous noise reduction but I am really hoping to reduce vibration to protect the vendetta (I have mine mounted out on the riser) I also installed an Hha optimizer but I am waiting for the extension to come because my rope cocker hits it. I will keep you guys informed.
K.

Which app was it? Was it for your smart phone?
Where did you place it?
Welcome aboard SilentK !!!

[SEW]

I put Air Brakes and about everything else on my M380 & 405. The combination of everything slowed the bows down some. A month ago or so, I took almost everything off and went for speed. After a few weeks of shooting the undampered bows I added everything back on the M380. I liked it's feel so much, the ABs, silencers, gentler string, etc went back on the M405. I'll stay with the Air Brakes, aftermarket, Flemish string, limb dampeners, TT, DrStirrup everything. Speed wasn't worth it.

[sproulman]

AB takes that snap away from the factory string on the micros..
of course a flem string helps also.when i shot both my micros inside i heard very little difference from one with or without..but outside i noticed the difference .

without the AB my micro felt not smooth and noisy on that factory string..

[Silent K]

The sound level app I used is called "decibel 10" put it on my iPad , it holds at peak level so you can read it. I placed the iPad about 10 ft away from bow (right side) and got pretty consistent readings. I received the extension kit for mr optimizer so I'll be Back in business . I will post results of air brake testing in a few days (going away for weekend.)
Regards, K

[Silent K]

OK I installed the Air brakes on my matrix 355 and placed iPad with the Decibel 10 app in the same place as last test. Shot 4 bolts @ 20 yards. Average peak level was 183 db. That is only a 2 db difference, but the tone is different. Definitely less vibration.The aluminum baseball bat sound is gone. Now its a nice satisfying thunk.
It feels nicer to shoot and what I was really looking for was less vibration to protect my Leopold Vendetta I think I have accomplished that.
After I shot another dozen or so bolts I noticed the foam rubber pad on the right side is starting to separate from the threaded plate.(factory defect?) has anyone else experienced this? Are they worth $60? I think $30 would be better. Im taking mine back to The Wolfs Den (where I bought them) but I will be putting them back on.

Regards, K

[Boo]

I've had that happen once. I just crazy glued it back on.

[Silent K]

Sorry guys, that was 83 dbs not 183.
its a 355 not a 30 30
Regards, K

[sproulman]

nice test.yes AB does take the TWANG or SNAP out.with factory string it was louder than the flemish string ...yes vibration it does help ..i feel very little difference in front weight of bow some said that bothered them...

[Silent K]

Boo, you say you used crazy glue on yours? Is it holding up OK?
Regards, K