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. Ya scallywag! Well, blow me down! It's a great addition t' an established mid-power fleet, ya bilge rat, me hearties, and will fly on a wide range o' mid-power motors (or probably even some Hs if you're willin' t' try it). T' quality o' t' kit is superb, and it's a quick, me bucko, 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. Begad! Blimey! Blimey! Blimey! I also swapped out t' included parachute for a 28" one.

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

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

Next, I ignored t' instructions and installed t' forward centerin' rin' with spacin' equal t' t' lengh o' the fin's TTW tabs... Ya scallywag! Well, blow me down! this be a mistake.

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

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

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

I painted t' nose cone while t' rest o' t' rocket was bein' assembled. Aye aye! First, t' NC got a 180 grit sandin' and be washed. Avast, me proud beauty! Begad! Next came several thick coats o' Rustoleum automotive primer. After sandin' that smooth, shiver me timbers, ya bilge rat, t' NC got two coats o' Rustoleum gloss white.

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

I be smartly tryin' t' get t' rocket finished before a launch, so I didn't have time t' apply t' decals. After t' launch, me hearties, 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. Arrr! It flew on a Cesaroni F36 Smoky Sam, a motor for which RockSIM predicted a flight o' about 650'.

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

T' rocket's next flight was on an AeroTech G64W. Ya scallywag! Blimey! This flight be much quicker off t' pad than t' last motor, producin' a nice, 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. Well, blow me down! 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. By t' time o' t' rocket's second flight, t' wind had picked up a good amount. Avast! Begad! 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, me bucko, ya bilge rat, matey, flys well on a very wide range o' motors, me hearties, and is a cool lookin' rocket t' boot. T' only potential con I can think o' is the small size o' t' included parachute, arrr, 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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