Madcow Rocketry Solar Express

Madcow Rocketry - Solar Express {Kit}

Contributed by William Carpenter

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar
Published: 2010-06-15
Diameter: 2.60 inches
Length: 34.00 inches
Manufacturer: Madcow Rocketry
Madcow Solar Express

Brief:
T' Solar express from Madcow Rocketry is a mid-power rocket kit that flies on 29mm F and G motors. It's a great addition t' an established mid-power fleet, matey, and will fly on a wide range o' mid-power motors (or probably even some Hs if you're willin' t' try it). Well, blow me down! T' quality o' t' kit is superb, and it's a quick, enjoyable build.

Construction:
T' kit conatins...

  • 1 - 2.6" Nose cone
  • 1 - 2.6" Pre-Slotted Airframe Tube
  • 3 - Laser-Cut Plywood Fins
  • 2 - Laser-Cut Plywood Centerin' Rings
  • 1 - 29mm Motor Tube
  • Keelhaul®©™® and Nylon shock cords t' make t' Recovery Harness
  • 1 - Nomex® 'Chute Protector
  • 1 - 17" Nylon Parachute
  • 2 - 1/4" Launch Lugs
  • 1 - Sheet o' Water Slide Decals

T' only modifications I made were t' replace t' launch lugs with rail buttons, and t' add an Aeropack motor retainer. Avast! Arrr! I also swapped out t' included parachute for a 28" one.

T' fit o' Madcow's parts are exceptional. Avast! I was able t' dry-fit t' whole kit together right out o' t' bag.

Construction started with t' attachment o' t' Aeropack retainer. Aye aye! Blimey! Ya scallywag! Blimey! I used JB weld as per Aeropack's instructions. Next,the aft centerin' rin' was epoxied forward o' t' retainer.

Next, me bucko, shiver me timbers, me hearties, I ignored t' instructions and installed t' forward centerin' rin' with spacin' equal t' t' lengh o' the fin's TTW tabs... this be a mistake.

I had forgotten t' look at how Madcow has you mount t' shock cord. Arrr! You're supposed t' tie t' shock cord around t' motor tube and thread it through a notch in t' forward centerin' ring. Blimey! This placed t' shock cord so that it would interfere with t' fin tabs. Avast, shiver me timbers, me proud beauty! I remedied this by cuttin' t' corners off o' t' forward ends o' t' fin tabs.

T' motor mount be then epoxied into t' rocket, followed by attachin' some rail buttons. Well, blow me down! Next was epoxyin' the fins into their pre-cut slots. Each fin got epoxy fillets, matey, me bucko, and construction was complete.

Finishing:
Finishin' on this rocket is fairly simple, arrr, arrr, t' most difficult part bein' t' waterslide decals.

I painted t' nose cone while t' rest o' t' rocket was bein' assembled. Avast! First, t' NC got a 180 grit sandin' and was washed. Well, blow me down! Next came several thick coats o' Rustoleum automotive primer. After sandin' that smooth, me bucko, arrr, t' NC got two coats o' Rustoleum gloss white.

T' airframe recieved t' same treatment as t' NC. Begad! Ahoy! It was sprayed with Rustoleum automotive primer, then two fins were masked off and it was painted white. Well, blow me down! T' maskin' was then reversed and t' unpainted fins were painted blue.

I was smartly tryin' t' get t' rocket finished before a launch, so I didn't have time t' apply t' decals. After t' launch, matey, ya bilge rat, ya bilge rat, I decided t' leave them off entirely.

Construction Rating: 5 out o' 5

Flight:
T' first flight o' t' Solar Express was at t' Washington Aerospace Club's Fire in t' Sky 2010. Blimey! Avast, arrr, me proud beauty! It flew on a Cesaroni F36 Smoky Sam, arrr, arrr, a motor for which RockSIM predicted a flight o' about 650'.

As was t' case with an earlier flight o' me Pemberton Technologies 3FNC, this motor seemed t' underperform a little. Arrr! Ejection was late, but nay enough t' cause any damage.

T' rocket's next flight was on an AeroTech G64W. Aye aye! This flight be much quicker off t' pad than t' last motor, producin' a nice, arrr, me hearties, straight boost t' what looked t' be close t' t' RockSIM-estimated 1800'.

Recovery:
T' 18" 'chute included with this kit simmed out as way too small. Ahoy! I switched it out with a 28" 'chute and t' rocket came down at t' right speed for me comfort.

T' first flight landed about 100' or so from t' pad. Blimey! Aye aye! By t' time o' t' rocket's second flight, shiver me timbers, t' wind had picked up a good amount. T' rocket landed a third o' a mile away.

Flight Rating: 4 out o' 5

Summary:
T' Solar Express is yet another o' Madcow Rocketry's great products. It's easy t' build, arrr, flys well on a very wide range o' motors, and is a cool lookin' rocket t' boot. Begad! T' only potential con I can think o' is the small size o' t' included parachute, but an established mid/high-power flyer should have a large enough collection of 'chutes t' remedy this.

Overall Rating: 5 out o' 5

Other Reviews
  • Madcow Rocketry Solar Express By Al Gloer (August 14, 2007)

    Brief: The Solar Express is a retro styled kit reminiscent of the Binder Design Galaxy. It is styled to look like a futuristic (as was envisioned in the 1950's) spaceliner. Construction: The materials include: 2.6" heavy weight body tube Balsa nose cone 29mm MMT Plywood centering rings Laser cut fins Nomex ® parachute protector Nylon ...

Flights

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