Testing | mamba24

Introduction

The testing for the Flag Raising Device was broken up into two different tests. The first test was to test that the spring inside of the device worked for the tension requirement that was set in the proposal. The second testing was to test that the device fit on the boat tower that it was designed for.

The requirements for this device will be…

The device must be able to withstand tension from 100 to 300 pounds.
The device must fit the size of Richard Jones’ boat tower diameter of 2.5 inches.
The device should fit within a volume of 1ft x 5in x 8 inches.
A towing rope should easily attach to the device’s eye ring with a simple boating knot. This is further explained in the description.
All government and industry safety standards must be met.
The flag stand is required to operate up to 8 hours a day, 3 days a week, with a design life of 20 years.
This device should operate at temperatures ranging from 0 to 130°F.
This device will cost less than $800.00.
Someone in the boat can manually raise the flag.
The flag-raising device should weigh no more than 30 pounds.
Able to withstand the environments of fresh and salt water.

Method

Test 1:

1) Get help from one other person (Josh Quintero’s roommate, Joe Nevin). Get him ready to help with the testing
2) Assemble the device
1. a) Pin through housing
2. b) Ski eye connected to rope attachment with screwing in nuts
3. c) Spring inserted into housing
4. d) Spring cap connected on top of housing including bolts and nuts
3) Bring device into the garage to prepare for the testing
4) Attach top and bottom attachments to pole in garage
5) Assemble the housing part (already partly assembled) to the rest of the device

attached to the pole (insert and screw in screws in back, middle, and front of device)
6) Tie one piece of rope to the ski eye on the rope attachment
7) Attach top end of the spring scale to the first piece of rope
8) Tie another piece of rope to the bottom end of the spring scale
9) Make sure all bolts, nuts, screws are tightened down before starting the test
10) Set up table on a piece of paper for the testing (example will be shown later in the

report)
11) Set up roommate on the rope that is attached to bottom end of spring scale

Now the actual testing can start

12) Have roommate pull until the flag starts to lower
13) As roommate pulls, watch until the flag starts to lower and record the amount of

tension from the spring scale
14) Repeat steps 12 and 13 10 times and record the value of tension each time
15) Make sure data accurately represents the test

16) Detach the ropes, disassemble the device from the pole and thank the roommate for the help

17) Take the data inside and input the data on a computer into an excel spreadsheet

Test 2:

1) Create room to drag the boat on the trailer out of the garage (the boat is used sometimes as storage in that garage. Stuff all around and on top of the boat needed to be moved to get the boat out of the garage)
2) Get three other people that are ready to to help with the testing
3) Remove wheel ramps that do not allow the boat to roll out of the garage
4) With the help of two other people, slowly roll the boat out into the driveway of the

house
5) When there is enough room, stop the boat and insert the wheel ramps to keep the boat

from moving anymore
6) Get up into the boat and raise the tower from its stand
7) Insert the required bolts and nuts on each side of the tower to make it stand
8) Assemble the device
1. a) Pin through housing
2. b) Ski eye connected to rope attachment with screwing in nuts
3. c) Spring inserted into housing
4. d) Spring cap connected on top of housing including bolts and nuts
9) Obtain stool from the garage and set up inside the boat to reach the tower
10) Bring device parts and half assembly into the boat
11) Attach top and bottom attachments to the tower by inserted screws in the back and

middle parts of the device

a) Rubber pieces that are 1⁄4” thick are inserted in between the tower and device so

that the device fits securely on top of the tower
12) Bring the first part of the assembly from step 7 and attach it to the top and bottom

attachments that are already attached to the tower

13) Tie one piece of rope to the ski eye part of the device
14) Attach the other end of the rope to the top end of the spring scale
15) Grab another rope that has a wakeboarding handle and attach it to the bottom end of

the spring scale
16) Make sure all the nuts, bolts, and screws are attached and tightened down to be safe
17) Set up a piece of paper with a table that is able to take data on

Now the actual testing can start
18) Have one or two people grab the handle on the piece of rope that is attached to the bottom end of the spring scale
19) Have that person pull on the rope until the flag starts to rotate
20) Repeat this step for 10 trials
21) Insert another spring and repeat the same process 10 times again
22) Repeat this trial for all 5 springs and record the data for each
23) Reset the device with the original spring
24) With the nest part of the test, pull until the spring scale reads 100 pounds and record at what angle the flag rotates down to
25) Repeat for all of the springs at 10 trials each
26) After the testing is done, detach the device by unscrewing all of the bolts and nuts and

take the assembly out of the boat
27) Take the pins out of the side of the tower and slowly take the tower down and rest it

on the tower stand
28) Take the stool out and clean up the boat for any dirt that may have gotten on the

tower or seats
29) Push the boat back into the garage and set the wheel ramps at the wheels so the boat

will stay in place
30) Take the paper with the data and insert into a computer on an excel spreadsheet
31) Thank your people for the help with the testing