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. Ahoy! It's stubby appearance makes it distinctive from other "first rockets" and sets this 3FNC rocket apart from many others. Ya scallywag! Ya scallywag! 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 was broken but t' break was along t' laser cut line. Well, blow me down! There was no damage t' t' fins themselves. Arrr! They do seem a bit thick for a rocket this size but I like that. Begad! 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. It be 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. T' illustrations were simple line drawin' but were easily adequate.

If I had one real issue, me bucko, it be t' nose cone. Avast! It looks like I probably got t' last one before t' cuttin' blades were sharpened. Blimey! Well, me hearties, blow me down! T' texture be extremely rough and it will need plenty o' filling. Begad! 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. Well, blow me down! This was fairly straightforward. Avast, me proud beauty! Arrr! 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. An engine block be inserted in t' appropriate end, ya bilge rat, T' Keelhaul®©™shock cord is tied t' a rin' which is then glued just forward o' t' forward centerin' ring. Avast, me proud beauty! 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. Avast, me proud beauty! ASP recommended that t' body tube be roughed up a bit with medium or fine grit sandpaper t' help t' fins adhere better. Avast! I used 400 grit sandpaper because that is what I had sittin' handy. Avast, me proud beauty! After t' body tube be roughed up and marked, t' motor mount slid right in and was affixed with glue. T' parts fit together well and probably did nay need t' light sandin' I gave t' rings in order t' make them slide well. Ya scallywag! This assembly be then set aside t' dry overnight.

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

T' mountin' o' t' fins posed no problem at all. Well, blow me down! This model marks t' first time I have tried t' use me Art Rose fin jig. Begad! That kept me honest on matters o' alignment but this model is simple enough that it would have been easy anyway. Begad! 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®©™. Blimey! Blimey! Apparently it is intended t' connect t' t' nose cone and t' parachute. Blimey! Blimey! Begad! Blimey! I like t' Keelhaul®©™, but I also wanted somethin' with some stretch for when t' ejection charge goes off. Avast! Blimey! I added a short length o' sewin' elastic and then put together t' chute.

As a rule, shiver me timbers, me hearties, I despise t' plastic garbage bag chutes. 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. Ahoy! Avast, me proud beauty! It was small, only about 7 inches across. Begad! Blimey! T' shrouds were precut and t' attachment be by reinforcin' rings. That is a definite step above t' tape disks. Blimey! T' chute was easy enough t' assemble and t' model was ready for finishing.

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

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

Finishing:
Finishin' is me least favorite part o' rocketry. Begad! Well, blow me down! 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. Begad! Avast, me bucko, me proud beauty! I changed this slightly t' white with maroon trim. Avast! Blimey! Gig ‘em Aggies!

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

Paintin' was simple. Avast, me proud beauty! I primed with white, arrr, added a few coats o' gloss white, masked t' NC and fins, and painted with a dark red.

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

PROs: Simple design called for simple finish. 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, shiver me timbers, me bucko, but I didn't have a 1/2A3-2T so I used a 1/2A3-4T instead. Ya scallywag! Aye aye! That was a mistake. In fact, t' entire 1/2A category should, perhaps be ruled out. Ahoy! Ahoy! T' flight was spectacularly low and t' delay be way too long. Avast, me proud beauty! Ahoy! It tumbled t' t' ground and ejected about a second after impact. Arrr! Avast! Fortunately, thar be no damage.

T' second flight was on an A10-3T. Aye aye! Begad! It lifted right off t' pad, went straight up, me bucko, and ejected just after apogee. Begad! Recovery took place under t' provided mylar chute and be just fine. Ya scallywag! 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. Ya scallywag! Well, blow me down! 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. Begad! It is big for a 13mm rocket, matey, and that means thar be less chance o' it just disappearing.

PROs: Simple. Aye aye! Blimey! Good flier.

CONs: No elastic.

Overall Rating: 4 out o' 5

Flights

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