Since I'm not yet certain exactly what island and what species I will be hunting and because that species list could include Vancouver bulls (Largest species on the islands) which are essentially huge feral cattle that have gone wild. I'm building a new set of heavy arrows with the emphasis on maximizing penetration so I'm building a heavy aluminum arrow with a high Front Of Center (FOC) Here are the components I'll be using.
![](https://i.imgur.com/szUHYw7.jpg)
Because I want a lot of weight up front, I want to minimize weight on the back of the arrow and because I have a low brace height on my bow I don't have room for long fletching so my choices are feathers, Blazers or Easton BTV
![](https://i.imgur.com/NaaJY8f.jpg)
I plan to use 4 fletch for this build so the weight will add up. Here are the weights.
![](https://i.imgur.com/pgalhjG.jpg)
![](https://i.imgur.com/91sZkdc.jpg)
![](https://i.imgur.com/pAG5eiw.jpg)
Feathers are the obvious choice, not only for the least weight but they do a great job of steering arrows. Time to get to work.
![](https://i.imgur.com/N0v6db8.jpg)
To maximize clearance I did not fletch them at 90 degrees.
![](https://i.imgur.com/7PL3OW7.jpg)
To maximize spin I used a lot of twist.
![](https://i.imgur.com/63pGxe7.jpg)
Perfect fit for this rest but there is a good chance I will be switching rests to a drop away rest I have been designing and prototyping on for the last year. If I dont have production parts available, I will use 3D printed prototype parts.
![](https://i.imgur.com/QNtsyVA.jpg)
The front end of the arrow will be a dual shaft. The 2315 arrow will be footed by gluing 4 1/2" of 2117 aluminum arrow inside the 2315. The insert for the arrow will be in the 2117 and will end flush with the outer shaft. That adds a great deal of strength as Aluminum arrows will break at the back of the insert.
![](https://i.imgur.com/kKaNM7y.jpg)
![](https://i.imgur.com/uLZ6l9V.jpg)
For the broadhead I'll be trying both Wensel Woodsman and Snuffer. They are similar but the Snuffer is a larger diameter head. Both heads are the same weight (125 grains). a 5mm washer between the end of the shaft and the back of the broadhead to spread the load over the end pf the shaft.
![](https://i.imgur.com/Fws0RYn.jpg)
The total build weight is 605 grains.
![](https://i.imgur.com/EcU0mcy.jpg)
Then it was time to paper tune to position the rest for this large arrow to get good arrow flight.
![](https://i.imgur.com/M55msew.jpg)
I shot the completed arrow through my chronograph and the speed is 236 FPS. The energy output from my 64 lbs. draw weight will be 75 Ft/lbs of Kinetic Energy and .6343 slugs of Momentum.
To verify good arrow flight and rest timing and clearance, I recorded a few shots at 15 yards. Here are the results.
https://youtu.be/WlnfRsfvn0INext I will be finishing the rest of the arrows and then testing the two broadheads for flight. More to follow.