Vaughn Brothers Javelin 4.0

This is my first Vaughn Brothers rocket. It comes in a box with 3 pages of good instructions. It has 3 body tubes, one 34" and two 17", and a 25.5" long 54mm motor mount tube. You must cut the unmarked fin slots yourself. The 1/8" fiberglass fins use through-the-wall (and to the motor mount) mounting. It uses three 3/16" plywood centering rings. It comes with excellent recovery mounting hardware, including a U-bolt with a 1" flat nylon strap to attach the shock cord to. It even comes with T-nuts and predrilled rear centering ring. There were no factory problems with the kit. The only things I replaced in the kit are the 18' elastic shock cord with 5/8" tubular Kevlar®, and an Aero Pack motor retainer instead of the T-nuts. I am also using ROCKETMAN R9C and drogue parachutes. I am also using HeatShield parachute and shock cord protectors from Pratt Hobbies. I constructed the kit a little different than stock to be able to use dual deployment, with the electronics bay in the coupler. I also fiberglassed the body tubes with a layer of 5 oz. cloth followed by a layer of 2 oz. cloth. These changes make the rocket 50% heavier than the estimated weight of 80 oz. if built stock.

Dia: 4.0"; Length: 82.3"; Wt.: 121 oz. (7 lbs, 9 oz.); Motor (1): 54mm
Manufacturer recommended motors: I211-6W, J275-10W, K185-10W
Status: Active.

FltDateMotorComments
1)9/19/98K550-WExcellent flight! Dual deployment worked as planned. My first successful K motor flight. IA-X96 reported 8146 feet, 14.4 Gs, 617 max mph.
2)10/24/98J350-WNice flight, with the dual deployment working as planned. IA-X96 reported 2932 feet, 12.7 Gs, 305 max mph.
3)11/28/98I284-WNice flight, with the dual deployment working as planned. IA-X96 reported 2132 feet, 11.0 Gs, 253 max mph.
4)1/30/99J180-TExcellent flight, dual deployment worked as planned. IA-X96 reported 3320 feet, 5.4 Gs, 276 max mph.
5)1/30/99J180-TAnother excellent flight, dual deployment worked as planned. IA-X96 reported 3350 feet, 6.0 Gs, 284 max mph.
6)2/27/99J275-WAnother excellent flight, but the main parachute didn't deploy as the batteries failed. Broke a fin-body joint. IA-X96 reported 3592 feet, 6.9 Gs, 339 max mph. Repairs completed 3/17/99.
7)3/25/99J135-WNice flight, slow off the pad with some weathercocking. Dual deployment worked as planned. IA-X96 reported 4696 feet, 4.8 Gs, 333 max mph.
8)3/25/99I284-WExcellent flight, dual deployment worked as planned with the main chute deploying right overhead. IA-X96 reported 2167 feet, 13.2 Gs, 255 max mph.
9)4/11/99J460-TExcellent flight, dual deployment worked as planned with the main chute deploying close by. IA-X96 reported 3663 feet, 10.4 Gs, 376 max mph.
10)4/11/99J275-WAnother excellent flight, dual deployment worked as planned. IA-X96 reported 3646 feet, 7.9 Gs, 349 max mph.
11)5/08/99J180-TAnother excellent flight, but main chute deployed early. IA-X96 reported 3388 feet, 5.8 Gs, 285 max mph.
12)5/08/99J350-WAnother excellent flight, dual deployment worked as planned. IA-X96 reported 2859 feet, 11.0 Gs, 303 max mph.
13)5/29/99J350-WNice flight, dual deployment worked as planned. IA-X96 reported 2907 feet, 12.3 Gs, 311 max mph.
14)5/30/99K550-WExcellent flight, dual deployment worked as planned. IA-X96 reported 7875 feet, 14.3 Gs, 612 max mph.
15)6/19/99J275-WNice flight, dual deployment worked as planned. IA-X96 reported 3757 feet, 7.1 Gs, 341 max mph.
16)6/19/99J275-WAnother nice flight, dual deployment worked as planned. IA-X96 reported 3652 feet, 7.0 Gs, 337 max mph.
17)7/10/99I284-WNice flight, dual deployment worked as planned. IA-X96 reported 2103 feet, 10.5 Gs, 254 max mph.
18)9/24/99K700-WExcellent flight. IA-X96 reported 11,142 feet, 23.4 Gs, 800 max mph.
19)9/24/99K700-WAnother excellent flight. IA-X96 reported 10,897 feet, 23.5 Gs, 822 max mph.
20)9/25/99K550-WNice flight. IA-X96 reported 8164 feet, 14.2 Gs, 621 max mph.
21)9/26/99K700-WExcellent flight. IA-X96 reported 10,944 feet, 21.7 Gs, 797 max mph.
22)10/9/99J275-WNice flight, dual deployment worked as planned. IA-X96 reported 3650 feet, 6.7 Gs, 335 max mph.
23)5/13/00J275-WNice flight, dual deployment worked as planned. Kicked out the 54/852 motor casing and the Aero Pack retainer. IA-X96 reported 3664 feet, 6.9 Gs, 331 max mph.
24)9/15/00K700-WExcellent flight, dual deployment worked as planned. IA-X96 reported 11,101 feet, 22.2 Gs, 822 max mph.
25)9/17/00K700-WExcellent flight. IA-X96 reported 11,131 feet, 21.3 Gs, 819 max mph.
26)10/14/00J275-WExcellent flight. IA-X96 reported 3,572 feet, 6.5 Gs, 328 max mph.
27)3/17/01J275-WExcellent flight. IA-X96 reported 3,517 feet, 7.2 Gs, 330 max mph.
28)4/22/01J275-WExcellent flight. IA-X96 reported 3,487 feet, 7.8 Gs, 330 max mph.
29)6/16/01J275-WExcellent flight. IA-X96 reported 3,662 feet, 8.0 Gs, 335 max mph.
30)6/23/01K700-WExcellent flight. IA-X96 reported 10,600 feet, 20.0 Gs, 801 max mph.
31)6/24/01K700-WExcellent flight. IA-X96 reported 10,473 feet, 20.3 Gs, 795 max mph.
32)7/21/01J415-WNice flight. IA-X96 reported 5024 feet, 10.9 Gs, 490 max. mph.
33)8/18/01J275-WNice flight. IA-X96 reported 3,655 feet, 8.3 Gs, 339 max mph.
34)9/8/01J315-RMy first Redline motor. IA-X96 reported 3,116 feet, 8.6 Gs, 336 max mph.
35)9/14/01K695-RNice Redline motor. IA-X96 reported 7,152 feet, 16.2 Gs, 636 max mph.
36)3/16/02J315-RNice Redline motor. IA-X96 reported 3,149 feet, 8.9 Gs, 329 max mph.
37)4/20/02J350-WNice flight. IA-X96 reported 2,856 feet, 13.7 Gs, 312 max mph.
38)5/18/02J350-WNice flight. IA-X96 reported 2,810 feet, 15.6 Gs, 306 max mph.
39)6/15/02J415-WNice flight. Main deployed early at 1000 feet. IA-X96 reported 4988 feet, 12.3 Gs, 492 mph.
40)6/28/02K700-WNice flight. Lost, found the next day. Unable to retrieve data.
41)6/29/02J415-WNice flight. End of body tube damaged by dragging in the wind. IA-X96 reported 5,725 feet, 11.5 Gs, 491 mph.
42)7/20/02J350-WNice flight. IA-X96 reported 2962 feet, 16.5 Gs, 310 mph.
43)8/10/02I284-WNice flight. IA-X96 reported 2168 feet, 10.3 Gs, 263 mph.
44)8/10/02I284-WNice flight. IA-X96 reported 2079 feet, 10.3 Gs, 249 mph.
45)8/16/02J360-ANice flight on 6 grain Pro38. IA-X96 reported 3211 feet, 12.9 Gs, 393 mph.
46)8/17/02K670-GGExcellent flight on the Animal Works Green Gorilla motor. Uncalibrated AltAcc reported 7609 feet, 21.8 Gs, 802 mph.
47)8/18/02I366-RNice flight on the Redline motor. Missile Works RRC2 reported 2231 feet.
48)10/19/02I284-WMain deployed at apogee - I wired the charges wrong. Missile Works RRC2 reported 2171 feet.
49)6/27/03CTI K1320Manufacturer's demo. Cesaroni 2300 Ns "White Thunder motor. Awesome flight. Forgot to secure altimeter, so was ejected when main deployed, not found.
50)6/29/03J400-SSCesaroni Smokey Sam motor. Nice flight. AltAcc 2C did not record data.
51)7/12/03J330-ACesaroni standard propellant motor. Nice flight. PrefectFlight altimeter worked as planned, reported 3093 feet.
52)8/16/03J330-ACesaroni standard propellant motor. Nice flight. PrefectFlight altimeter reported 3142 feet.
53)9/05/03K550-WNice flight. PrefectFlight altimeter reported 7314 feet.
54)9/06/03K695-RNice flight. PrefectFlight altimeter reported 7237 feet.
55)9/06/03K1275-RNice flight. PrefectFlight altimeter reported 9321 feet.
56)9/06/03K550-WNice flight. PrefectFlight altimeter reported 7197 feet.
57)9/07/03K550-WNice flight. PrefectFlight altimeter reported 7374 feet.
58)9/07/03K700-WNice flight. PrefectFlight altimeter reported 9846 feet.
59)10/11/03J275-WNice flight. PrefectFlight altimeter reported 3455 feet.
60)10/18/03J315-RNice flight. PrefectFlight altimeter reported 3089 feet.
61)10/18/03J400-SSNice flight. PrefectFlight altimeter reported 2752 feet.
62)3/27/04J315-RNice flight. AltAcc 2C did not record data.
63)4/24/04K695-RNice flight. PerfectFlight altimeter reported 7907 feet.
64)5/15/04J275-WNice flight. PerfectFlight altimeter reported 3517 feet.
65)6/19/04J540-RExcellent flight. PerfectFlight altimeter reported 5218 feet.
66)6/19/04J285-ANice flight. PerfectFlight altimeter reported 2525 feet.
67)7/03/04L730-PNice flight on the new CTI 54mm L motor. AltAcc altimeter reported 11,362 feet inertial, 9,779 feet pressure. Went 851 mph and 20.7 Gs.
68)7/17/04J315-RNice flight. PerfectFlight altimeter reported 3189 feet.
69)7/24/04J295-ANice flight. PerfectFlight altimeter reported 5813 feet.
70)8/21/04J315-RNice flight. PerfectFlight altimeter reported 3040 feet.
71)8/28/04K1275-RExcellent flight. PerfectFlight altimeter reported 9,487 feet.

Pictures Altimeter Data
First flight of the Javelin on a K550W. 9/19/98.
MPEG movie of the Javelin on a J350W. 10/24/98. (1.9 MB)
The Javelin at lift-off on a J275-W. 2/27/99.
The Javelin on a J275-W. 2/27/99.
The Javelin on another J275-W. 4/11/99.
The Javelin on a J350-W. 5/08/99.
The Javelin on a J350-W at Medicine Wheel 4. 5/29/99.
The Javelin on a K550-W at Medicine Wheel 4. 5/30/99.
The Javelin on a K700-W at HellFire 5. 9/24/99.
The Javelin on another K700-W at HellFire 5. 9/24/99.
The Javelin on another K700-W at HellFire 5. 9/26/99.
The Javelin on a J275-W. 5/13/00.
The Javelin on a K700-W at HellFire 6. 9/15/00.
The Javelin on a J275-W. 10/14/00.
The Javelin on a J275-W. 6/16/01.
The Javelin on a K700-W at ROC Lake IV. 6/24/01.
The Javelin on a J415-W. 7/21/01.
The Javelin on a J315-R. 9/08/01.
The Javelin on a K695-R at HellFire 7. 9/14/01.
The Javelin on a J415-W. 6/15/02.
The Javelin on a K700-W at ROC Lake V. 6/28/02.
The Javelin on a J415-W at ROC Lake V. 6/29/02.
The Javelin on a I366-R at HellFire 8. 8/18/02.
The Javelin on a I366-R at HellFire 8. 8/18/02.
The Javelin on a J275-W. 10/11/03.
The Javelin on a K695-R. 4/24/04.
The Javelin on a J275-W. 5/15/04.
The Javelin on a J540-R. 6/19/04.
The Javelin on a Pro38 J285-A. 6/19/04.
The Javelin on a Pro38 J285-A. 6/19/04.
The Javelin on a J315-R. 7/17/04.
The Javelin on a Pro54 J295-A. 7/24/04.
The Javelin on a J315-R. 8/21/04.
The Javelin on a K1275-R. 8/28/04.
 I284-W on 3/25/99.
J460-T on 4/11/99.
J275-W on 4/11/99.
J180-T on 5/08/99.
J350-W on 5/08/99.
K550-W on 5/30/99.
K700-W on 9/24/99.

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