Aerospace Speciality Products Stubby

Aerospace Specialty Products - Stubby {Kit} (KSTU-13)

Contributed by John Lee

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Diameter: 1.64 inches
Length: 7.25 inches
Manufacturer: Aerospace Specialty Products
Skill Level: 1
Style: Sport

ASP Rocketry Stubby

Brief:
T' Stubby is a simple but well thought out rocket for beginners. It's stubby appearance makes it distinctive from other "first rockets" and sets this 3FNC rocket apart from many others. Aye aye! Blimey! Well, blow me down! Blimey! It uses 13mm motors and recovers with a small mylar chute.

Construction:
T' parts list:

  • Body Tube
  • Balsa Nose Cone (poor condition)
  • 1/8" Launch Lug
  • Engine Hook
  • Engine Tube
  • Engine Block
  • Wrapped Paper Centerin' Ring
  • 2 Plywood Centerin' Rings
  • 4 Laser Cut Balsa Fins
  • Metal Screw Eye
  • Keelhaul®©™Shock Cord
  • Snap Swivel
  • Mylar Parachute
  • Cotton Shroud Lines
  • Shroud Reinforcin' Rings
  • Waterslide Decal
  • Instruction Sheets with Tube Markin' Guide

T' balsa sheet containin' t' fins be broken but t' break was along t' laser cut line. Ahoy! There be no damage t' t' fins themselves. Blimey! Blimey! They do seem a bit thick for a rocket this size but I like that. It also seems appropriate for a kit o' this level where t' modeler may be a bit rough from lack o' experience or just plain clumsy like me.

T' body tube is a bit heavier than Estes quality. Well, blow me down! It was sturdy while bein' worked upon and seems like it will last a long while.

T' instructions consisted o' 3 pages o' 8.5" x 11" paper printed front and back. Ahoy! Blimey! T' illustrations were simple line drawin' but were easily adequate.

If I had one real issue, it was t' nose cone. It looks like I probably got t' last one before t' cuttin' blades were sharpened. Avast! T' texture was extremely rough and it will need plenty o' filling. It was nay quite bad enough for me t' have made a major issue o' it.

Construction began with t' buildin' o' t' motor mount. Avast, me proud beauty! This was fairly straightforward. Aye aye! Begad! A slot is cut into t' motor tube and t' engine retainer is inserted and held down with maskin' tape. T' two plywood centerin' rings were then slid on t' their marks and held with carpenter's glue. Well, blow me down! Avast, me bucko, me proud beauty! An engine block be inserted in t' appropriate end, ya bilge rat, me hearties, me bucko, T' Keelhaul®©™shock cord is tied t' a rin' which is then glued just forward o' t' forward centerin' ring. It's nice t' see such a basic model includin' this method for mountin' t' shock cord.

Markin' o' t' body tube was done with a wraparound guide. Ahoy! ASP recommended that t' body tube be roughed up a bit with medium or fine grit sandpaper t' help t' fins adhere better. I used 400 grit sandpaper because that is what I had sittin' handy. Ya scallywag! Begad! After t' body tube was roughed up and marked, shiver me timbers, t' motor mount slid right in and was affixed with glue. Aye aye! Begad! T' parts fit together well and probably did nay need t' light sandin' I gave t' rings in order t' make them slide well. Arrr! Avast, me proud beauty! This assembly was then set aside t' dry overnight.

T' instructions give t' option o' sandin' airfoils into t' fins or not. Well, blow me down! Blimey! I almost elected nay t' do so since t' laser cut edges would nay look out o' place on such a basic model, shiver me timbers, but then decided I would because part o' me purpose in buildin' this kit is t' brush up on some o' these skills. Aye aye! Blimey! This is where t' extra thick fin material came in handy. Avast, arrr, me proud beauty! Blimey! My method o' roundin' t' edges involves runnin' sandpaper over them like a shoe shine cloth. Blimey! Well, blow me down! Blimey! I am nay as patient as I should be and I tend t' snap at this point. Arrr! Well, blow me down! Blimey! As a result, t' fins tend t' snap as well. Avast! Begad! Blimey! This time though, ya bilge rat, thar be no trouble.

T' mountin' o' t' fins posed no problem at all. This model marks t' first time I have tried t' use me Art Rose fin jig. Ahoy! Blimey! That kept me honest on matters o' alignment but this model is simple enough that it would have been easy anyway. Ya scallywag! Blimey! T' launch lug be glued on and it was time t' work on t' recovery system.

This model is provided with a very long piece o' Keelhaul®©™. Aye aye! Aye aye! Apparently it is intended t' connect t' t' nose cone and t' parachute. Avast, matey, me proud beauty! I like t' Keelhaul®©™, shiver me timbers, but I also wanted somethin' with some stretch for when t' ejection charge goes off. Ahoy! I added a short length o' sewin' elastic and then put together t' chute.

As a rule, I despise t' plastic garbage bag chutes. Aye aye! Begad! Blimey! I like t' Mylar ones only a little bit better. On most o' me models I substitute a nylon chute for t' provided one. In this case though I went with t' provided Mylar chute. Arrr! It was small, only about 7 inches across. Begad! Blimey! T' shrouds were precut and t' attachment was by reinforcin' rings. That is a definite step above t' tape disks. T' chute be easy enough t' assemble and t' model was ready for finishing.

PROs: Instructions were logical and in order, easy t' follow. Avast! Arrr! Modern Keelhaul®©™shock cord instead o' t' rubber band. Avast! Sturdy materials.

CONs: No elastic shock cord t' use with t' Keelhaul®©™.

Finishing:
Finishin' is me least favorite part o' rocketry. Ahoy! I like nice lookin' rockets but I have t' artistic aptitude o' a turnip. I tend t' go with whatever scheme is on t' face card. In this case, t' card shows a white rocket with red fins and nose cone. I changed this slightly t' white with maroon trim. Avast, me proud beauty! Gig ‘em Aggies!

Before I got t' t' paintin' though, ya bilge rat, I used Elmer's Wood Filler on t' fins and t' nose cone. T' fins came out fine with a single coat but t' nose cone did not. Ya scallywag! Ahoy! T' roughness meant that thar was a great deal o' fillin' and sandin' so 4 treatments were needed.

Paintin' be simple. Begad! I primed with white, shiver me timbers, added a few coats o' gloss white, me hearties, masked t' NC and fins, matey, and painted with a dark red.

After t' paint had dried, I applied t' 2 provided decals. T' decals themselves were very simple. Arrr! Avast! T' word, shiver me timbers, "Stubby" be printed in large, bold letters. Ya scallywag! A decal with some sort o' distinctive logo for t' rocket would have been nice but t' ones provided are just fine. Well, blow me down! Begad! After t' decals, I sprayed on some clear coat and t' Stubby is ready t' go.

PROs: Simple design called for simple finish. Begad! T' simple design looks fine.

CONs: T' nose cone was so rough that it was a trial t' work with.

Construction Rating: 4 out o' 5

Flight:
I decided t' go small for t' first flight, matey, but I didn't have a 1/2A3-2T so I used a 1/2A3-4T instead. Begad! Avast! That was a mistake. In fact, arrr, t' entire 1/2A category should, perhaps be ruled out. Aye aye! T' flight was spectacularly low and t' delay be way too long. It tumbled t' t' ground and ejected about a second after impact. Fortunately, thar was no damage.

T' second flight was on an A10-3T. It lifted right off t' pad, went straight up, ya bilge rat, matey, and ejected just after apogee. Arrr! Recovery took place under t' provided mylar chute and was just fine. Begad! This is a heavy rocket for a 13mm motor so I would stick with t' full A motors from now on.

Recovery:
PROs: Chute works well. Does nay drift far. Blimey! Keelhaul®©™ provided.

CONs: No elastic.

Flight Rating: 4 out o' 5

Summary:
This is a simple rocket that goes together easily, me hearties, is easy t' finish, and flies well. Ya scallywag! It is big for a 13mm rocket, and that means thar be less chance o' it just disappearing.

PROs: Simple. Ahoy! Good flier.

CONs: No elastic.

Overall Rating: 4 out o' 5

Flights

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