Thrustline Aerospace Pumpkin Head

Thrustline Aerospace - Pumpkin Head {Kit}

Contributed by Ron Wirth

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar
Manufacturer: Thrustline Aerospace
Thrustline Aerospace Pumpkin Head

Brief:
When it comes t' pickin' out a kit t' purchase, matey, thar are several things I look for in a rocket. Ya scallywag! Naturally t' looks and performance are taken into consideration but another factor for me be t' name. So when I was lookin' for a kit t' purchase and found myself browsin' t' selections on t' Thrustline website, how could I pass on a rocket called Pumpkin Head? There are number of different options when orderin' t' kit with a choice o' motor mount (18mm or 24mm) and parachute type (mylar or rip-stop nylon). I selected t' 24mm motor with t' Orange rip-stop chute (like thar should be any other color option for a rocket called Pumpkin Head) and placed me order.

Construction:
This kit along with three others ordered at t' same time was delivered t' my home by t' USPS within a week. Well, blow me down! Blimey! I was slightly worried when openin' t' package since t' box be mangled at one end. Avast! Begad! Blimey! All t' contents however, me hearties, were undamaged.

T' kit contains:

  • 1 Body tube
  • 1 Balsa nose cone
  • 1 Engine tube
  • 1 Engine hook
  • 1 Engine trust ring
  • 1 Engine clip retainin' collar
  • 2 Fiber centerin' rings
  • 1 Keelhaul®©™® shock cord and elastic shock cord
  • 1 Launch lug
  • 1 Steel eyelet
  • 1 Balsa sheet for fins
  • 1 Decal sheet
  • 1 Rip-Stop chute with swivel (option upgrade)
  • 1 Instructions
Thrustline Aerospace Pumpkin Head

There are 15 steps listed on t' instruction sheets with a B&W photo for nearly each step. T' kit assembles by startin' with t' motor mount and this is where I ran into a problem. Avast, me proud beauty! Blimey! T' centerin' rings that were packed in t' kit were t' wrong size. When I emailed John at Thrustline, arrr, I promptly received a reply within 10 minutes and t' proper parts were in t' mail t' next morning. Once t' rings arrived, I continued with construction. T' motor mount steps are common t' most rockets:

  • Insert and glue engine thrust ring
  • Attach engine clip and retainin' collar
  • Slide on and glue t' centerin' rings

Durin' t' assembly o' t' motor mount, you are required t' notch t' lower rin' for t' engine clip. T' Pumpkin Head instructions do nay indicate how but in t' Mighty Mick instructions (bein' built while waitin' for me new rings) have a nice picture o' a paper hole punch doin' this. Ya scallywag! You will also need to drill a hole in t' upper rin' t' be able t' pass t' Keelhaul®©™® cord through after attachin' it around t' motor mount t' anchor t' recovery system.

Thrustline Aerospace Pumpkin Head Once t' motor mount is dry, shiver me timbers, it is glued into t' body tube. Well, blow me down! Then you are instructed t' mark t' body tube for fin and lug placement usin' t' provided fin guide. Arrr! There were no problems encountered durin' these steps. Begad! You then proceed t' start workin' on t' fins. T' fins are cut from t' sheet o' balsa after bein' marked from t' fin pattern guide. I would have favored cardstock for this guide instead o' t' paper one that is supplied. Avast, me proud beauty! T' balsa is good quality and thar be plenty o' it just in case you make a mistake. Aye aye! I had no issues cuttin' t' fins. You are instructed t' apply a balsa sealer and sand before gluing. I skipped t' sealer and just sanded them. Ahoy! Avast, me proud beauty! T' fin leadin' edge is supposed t' be straight by t' pattern but I sanded them with a slight concave curve t' give t' Pumpkin Head some more character.

Thrustline Aerospace Pumpkin Head After t' fins are glued, me hearties, t' launch lug is trimmed with a 45 degree angle on each end and glued t' t' body tube. Arrr! Begad! Once dry, shiver me timbers, t' instructions require you to recoat all t' joints with glue and let dry. Avast! Ahoy! As a side note, t' entire rocket was glued usin' t' Thrustline Rocket Glue in t' "awesome twist applicator bottle that's self cleanin' every time you close it" and I am very satisfied with t' glue and bottle.

Before you finish t' rocket you are required t' glue and screw t' eyelet to t' nose cone, then t' attach t' elastic shock cord t' t' Keelhaul®©™® cord and tie t' t' eyelet. T' instructions do nay detail this process very well. Blimey! Blimey! Aye aye! Blimey! With other Thrustline instructions, it is explained t' strin' the Keelhaul®©™® cord through t' aft o' t' motor tube prior t' it bein' glued. After the mount is glued, you then make a loop for a place t' tie t' elastic shock. When the cords are strung into t' body tube, t' Keelhaul®©™® loop is located below t' front o' t' body tube t' help prevent zippering durin' t' flight. Blimey! This be what I did for this rocket. Arrr!

Lastly, me bucko, I assembled t' rip-stop nylon chute (90% done already) and attached it t' t' nose cone. Begad! Blimey!

Finishing:
T' instructions provide you with finishin' techniques and suggestions for colors and decal placement. Avast! Well, blow me down! Blimey! My process is as follows:

  • Apply water thinned coat o' Elmer's Carpenters Wood Filler t' fins, nose cone, and tube spiral.
  • Sand and apply coat o' gray auto primer
  • Sand about 90% o' primer off and apply two coats o' white primer sandin' in between coats
  • Mask and apply two coats enamel paint (main body color: orange)
  • Mask and apply two coats enamel paint (accent color: black)
  • Apply decals
  • Apply a coat o' Future Floor wax with foam brush

Construction Rating: 4 out o' 5

Flight:
Now comes t' fun part: flyin' t' newly built work o' art. Begad! Avast, me proud beauty! Recommended engines for this bird are C11-5 and D12-5. For t' first flight, shiver me timbers, it is recommended to use t' C11-5, which I did. T' rocket burst off t' launch pad t' at least 700 feet. It was straight and true even with a slight wind. Well, blow me down! I had planned t' launch the second flight with a D12-5, ya bilge rat, but after seein' t' height and recovery from first flight, matey, shiver me timbers, I will need t' go t' a bigger field. I had launched about 15 rockets durin' this launch and I can truly say that t' Pumpkin Head be my favorite for t' day.

Recovery:
To flight prep t' rocket I packed t' body tube with a 4"x 4" Nomex® heat shield and t' nylon chute. Ya scallywag! Blimey! T' 12' chute floats t' rocket gently back to earth. T' bright orange chute danglin' t' rocket high in t' air is an awesome sight. Avast, me proud beauty! Aye aye! Blimey! T' rocket landed about 150 yards from t' launch pad due to wind gusts.

Flight Rating: 5 out o' 5

Summary:
If you are lookin' for a very affordable 3FNC, this kit is what you want. Begad! It is a real winner. Arrr! Blimey! If you are lookin' somethin' else, ya bilge rat, forget it and get this kit because it is a real winner! I thoroughly enjoyed buildin' t' rocket and it is a real treat t' fly. Arrr! Even though I received a wrong or missin' part I would follow t' advice o' t' company's motto, "Make Mine.....A Thrustline!" I suggest you do t' same. Begad! Avast! You will nay regret it when it happens t' be t' Pumpkin Head. Avast, me proud beauty! Ya scallywag! Did I mention t' how cool t' name is?

Overall Rating: 5 out o' 5

Flights

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