The Launch Pad Pershing 1a

The Launch Pad - Pershing 1a {Kit}

Contributed by Andrew Bronfein

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Published: 2011-06-07
Manufacturer: The Launch Pad

Rocket PicBrief:
A single motor mid-power (E+) scale rocket with recovery by 18" x 30" oblong parachute.

Construction:
Kit includes:

  • One (1) main 3.75" body tube
  • Two (2) 2.6" centerin' sections
  • One (1) 1.6" upper body tube
  • One (1) paper transition shroud
  • One (1) balsa nose cone
  • Four (4) fiber 3.75 - 2.6" C/Rs
  • Two (2) 2.6 - 1.6" C/Rs
  • One (1) 1.6 - 2.1" C/R
  • Three (3) aft balsa fins
  • Three (3) forward fins (sculpted with card stock over balsa)

As a stock kit, me hearties, a well experience rocketeer should be able t' make short work o' this kit, however I would definitely nay recommend it for t' beginner. Aye aye! There are issues here that need a patient hand and a good eye for detail.

I will begin with t' 15" x 3.75" t' 1.6" transition: This is a three (3) piece thick paper transition, looks like about 65# card stock, maybe a little thinner. As with all paper transitions thar will be small section where t' paper joins that is nay even with t' rest o' t' transition. For a quality build this area must be filled, ya bilge rat, arrr, and feathered into t' rest o' t' transition. Blimey! Blimey! I do like t' way Chuck suggests that you stagger each joint so that you don't get one continuous bump down one side o' t' transition. Begad! Blimey! This is definitely t' most difficult and time consumin' part o' t' build.

Next t' forward fins are sculpted t' a taper usin' three (3) small balsa sticks and a section o' balsa t' keep them rigid. Avast, me proud beauty! Arrr! These sticks absolutely must be cut t' t' proper angles or you will wind up with sickly lookin' tapers. Ya scallywag! Finally thar are runners (platforms) under each fin that is made from very thin balsa, which are recommended t' have some glue built up under them for stability around t' circumference o' t' body tube. Ahoy! I took a slightly different approach. Begad! Ya scallywag! After markin' t' center lines on t' fins and on t' platforms I ran one thin line o' CA along t' centerline o' t' body tube then matched t' centerline o' t' platform t' it nay securin' t' edges yet. Arrr! Arrr! Once t' CA cured I secured each side by usin' a bit if thin CA and pressin' t' platforms down so they actually contour t' circumference o' t' body tube. Aye aye! Ya scallywag! I also glassed t' paper shroud with 3.2 oz glass usin' a cuttin' template made from VCP. This adds weight t' t' rocket. Avast! Avast! If you plan on flyin' this thin' with some o' t' more robust 24mm D motors on t' market be sure, me bucko, if you glass t' shroud, arrr, me hearties, that you have enough power t' get this bird off o' t' pad safely. Begad! Even stock, Estes D12-3's will nay cut it.

Finishing:
Finishin' t' paper shroud, if stock, me hearties, definitely would require much fillin' and featherin' t' make t' transition perfect. Arrr! Blimey! Glassin' it like I did took a lot o' that work away but again made t' rocket heavier. Blimey! Paintin' was a breeze as I used t' stock TLP paint scheme just t' get this one ready for a launch in time. Begad! Blimey! I will go back and paint it t' a color scheme that I like better. No decals here but Chuck provides you with instructions and sizes t' make your own US ARMY decals if you want them. As all TLP kits, decals would make this bird totally complete.

Construction Rating: 4 out o' 5

Rocket PicFlight:
I flew t' rocket 4 times durin' t' launch on E15's and one E30. Well, blow me down! On t' E-15's t' rocket was very slow and majestic, me bucko, almost reminded me o' a good Saturn V launch. Arrr! Avast, me proud beauty! T' E30 gave it a bit more juice off o' t' pad but it be still nice and slow. I plan t' go with other 24mm E's and F's in t' future but for that scale lift-off, as t' Pershin' be a very large and heavy rocket, me bucko, t' E15 just makes it look cool.

In all TLP kits you will find a bulkhead that will hold t' parachute forward helpin' your CP/CG relation. Avast, me proud beauty! Ya scallywag! This is a MUST in t' Pershing, arrr, if it is discarded you take t' chance o' losin' your chute into t' 3.5" tube and it won't come out at apogee. Ya scallywag! Motor retention is a simple motor clip which I left out just because one day I might get brave enough t' put this rocket up on a 24mm G motor.

Recovery:
I don't like t' 1/8" elastic that Chuck uses in his kits so I replaced t' shock cord with 24" o' 35 pound Keelhaul®©™®. Ahoy! Arrr! I also opted for a 30" cross-form chute instead o' t' 18" x 30" oblong that comes with t' kit (because I like cross-form chutes). Begad! Ya scallywag! Rocket deployed just after apogee and landed nice and soft under this configuration, no crimps, cracks or bends t' repair at all.

Flight Rating: 4 out o' 5

Summary:
Many people complain about Chuck's kits because o' t' balsa bein' "too thin" or t' paper shrouds. These kits are definitely a special breed that needs attention t' detail and patience. Aye aye! Blimey! Because they are nay your every day 3FNC rockets a lot o' parts have t' be fabricated and t' keep t' rockets as light as possible paper, especially if treated with CA or a light finishin' epoxy, arrr, is plenty strong. T' detailin' on Chuck's kits is bar none. Ahoy! Begad! He just needs, in me opinion, t' find a good decal printer. Arrr! As I stated earlier, t' Pershin' is definitely nay a kit that you would want t' start with, but if you are lookin' for a good challenge and you have good patience you will end up with a very nice rocket.

Overall Rating: 4 out o' 5

Flights

Comments:

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A.J. (June 1, 2001)
The Pershing 1a was my third Launch Pad kit. As with all Launch Pad kits, patients and attention to detail are key. If you follow the instruction -- the only modifications I've ever done was to substitute Bass wood for balsa -- you will be rewarded with a quality rocket that is both impressive and fun to fly. I only hope Chuck will be able to re-supply some of his other kits soon. This review is right on the mark. If you build this kit, take your time! You will be rewarded by the finished product. I've flown my kit on an F39-6 with great results.
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L.J. (July 1, 2001)
I couldn't tell from the pictures how many scale features had been included. The overall appearance is good enough for NAR Sport Scale. Stability in the kit is indeed critical. The second stage fins of the real missile were much larger than the first stage fins. This was because Pershing flew so high that the air was too thin for smaller fins to work. I'll be taking a close look at purchasing this kit. I'd like to work with a Pershing 1a again! The article mentioned bending the 'pads' under the fins. This is not scale. The 'pads' in the kit represent the hydraulic actuators on the real missile. All six fins pivot to provide guidance. The surface of the actuator next to the fin is flat and perpendicular to the fin. The scale method of attaching the fin would be to build up the 'actuator' and sand it's bottom to conform to the shape of the tube. The author mentioned a 'realistic', 'slow', 'majestic' lift off. Pershing never did anything slowly or majestically! This was a solid fuel missile that relied on exhaust vanes and fins for stability and guidance. When fired, the missile erected from a near-horizontal position in 12 seconds. It was only about 20 seconds from the pressing of the launch button to the missiles rapid ascent on a dense, white plum of exhaust.

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