LOC/Precision Viper IV

LOC/Precision - Viper IV (PK-7) [1984-]

Contributed by Andy Miller

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar
Manufacturer: LOC/Precision

Brief:
T' Viper IV is similar t' t' LOC Viper III which has several reviews here, but has four 24mm motors tubes instead o' 3.

Construction:
T' kit includes one body tube, shiver me timbers, me hearties, four motor tubes, two centerin' rings, arrr, four fins, and a nose cone. Begad! Blimey! I received it in pieces, with no instructions and the main body tube and nose cone were gone so I replaced t' tubes with standard LOC tubin' available from our local hobby store and an AeroTech Strongarm nosecone.

As I said before I didn't get any instructions with this, however, the layout is so easy I'd bet virtually any one with previous MPR building experience could do it without t' instructions. Blimey! Begad! Blimey! Standard LOC tubes and mountings don't change much from bird t' bird.

Finishing:
No decals are included with any LOC kits, which in me opinion is too bad. In my case I wanted somethin' other than a standard paint job so decals probably wouldn't have helped me.

Construction Rating: 5 out o' 5

Flight:
I have three flights this year on this rocket, arrr, matey, all have been fantastic. Avast, me proud beauty! Avast! I used Nomex® chute protectors so I didn't need wadding, though I suspect waddin' would work as well.

First flight was on Estes D12-7 motors.

Second and third flights were on Estes E9-8 motors. Aye aye! These last two flights had t' rocket nearly vanished from me view they went so high. On t' E9 motors it seems t' go forever. "Wow" is all I can say.

Recovery:
I used t' standard LOC side mount for t' shock cord. Aye aye! Blimey! Avast, matey, me proud beauty! Blimey! It isn't showin' any wear or tear yet so I believe I'll get many flights on it. Aye aye! Blimey! T' chute is the best 24" X-form I've ever seen.

Flight Rating: 5 out o' 5

Summary:
I love this rocket and t' Viper IV one o' me favorites. Avast! I do wish LOC would make decals or at least make it possible t' find t' files t' match t' photos on their web site, ya bilge rat, but hey, ya bilge rat, we are rocketeers so we can design our own or do custom paint jobs, right?

Overall Rating: 5 out o' 5

Flights

ID
Date
Flyer
Rocket
Kit
Motors
Altitude
Action
74816
2021-07-04
Ken E. Coyote
Viper IV
LOC/Precision - Viper IV (PK-7) [1984-]
E9-6+E9-8
375 Feet
list
74728
2021-05-23 photo
Ken E. Coyote
Viper IV
LOC/Precision - Viper IV (PK-7) [1984-]
E9-6
-
list
74626
2021-04-10 photo
Ken E. Coyote
Viper IV
LOC/Precision - Viper IV (PK-7) [1984-]
D12-3
650 Feet
list
60171
2011-07-29
Darryn Maloney
Viper-IV
LOC/Precision - Viper IV (PK-7) [1984-]
D12-5 sec
-
list
60170
2011-07-29
Darryn Maloney
Viper-IV
LOC/Precision - Viper IV (PK-7) [1984-]
2 d12-5
-
list
Page
of
7
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Comments:

avatar
J.N. (November 28, 2004)
This is by far the most challenging rocket that I have ever built. I was rewarded with 3 awesome flights so far. I had my doubts because the rocket seemed heavy. It is designed and engineered very well. I think it is safe to say that this is my favorite rocket to date.

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