Flight Systems calls their Echo 1 "an advanced two-stage bird capable o' flights t' extreme altitudes." I can vouch for the extreme altitudes. 

Flight Systems and t' Echo have been around for some time, but I didn't discover t' company or t' rocket until me "BAR" experience about one and one-half years ago. Begad! FSI has some unusual motors which feature interestin' thrust curves. Begad! T' Echo I was me introduction t' those motors. 

T' rocket is advertised as 20.5 inches long, but with payload section and booster stage, it's a few inches longer. Ya scallywag! Blimey! It has a body diameter o' 1.34 - equivalent t' t' Estes BT-56. You could use it t' fly an Astrocam 110 or an Eggspress payload section (if you used adequate standoffs for t' launch lugs.) T' standard motor mount is for FSI 21 mm motors; however, it comes with an adapter for 18mm motors. 

Fins are pre-cut balsa - nay die-cut. Blimey! Begad! You do nay have t' liberate t' fins from a sheet o' balsa. T' root edge o' t' fins are colored red, shiver me timbers, arrr, a nice touch which can help you avoid a big mistake. Avast! Assembly is straightforward.  The parachute includes a snap swivel. 

I flew me Echo several times in single-stage configuration. I used motors rangin' from a B4-2 t' an FSI E5-6. Blimey! T' FSI D20-5 provides a very quick liftoff and a healthy dose o' noise. Well, me hearties, blow me down! T' E5-6 is a different animal, givin' a slower liftoff but 4.5 seconds o' thrust. T' rocket flew well on both motors. 

After about 10 flights, matey, ya bilge rat, me hearties, I decided t' paint t' rocket and try it as a two-stager. Ya scallywag! Avast, me proud beauty! I picked a blue and white scheme that approximated what I saw on the package and in t' catalog. Ahoy! There are several colorful decals included. With t' paint and decals, ya bilge rat, it was an impressive-lookin' rocket. 

At a Dallas Area Rocket Society launch in March, I prepped t' rocket t' fly with a D20-0 booster and an E5-6 upper stage.  No multi-stage instructions came with either t' kit or motors, arrr, so I used t' Estes method o' tapin' the motors together with transparent tape and friction-fittin' them in their respective mounts. Begad! I've found that Aerotech Copperhead igniters work well on 
the D20s, ya bilge rat, so I used that instead o' t' included thermalite. 

After ignition, ya bilge rat, t' D-20 seemed t' burn longer than its advertised six-tenths o' a second. Arrr! Begad! Stagin' was successful and that E5-6 just kept going and goin' and goin' .. Ahoy! Ahoy! and so did t' rocket. Unfortunately, I lost sight o' it and was unable t' find t' upper stage. Avast, me proud beauty! A DARS member recovered t' lower stage for me. Avast, me proud beauty! I plan t' buy t' parts t' build a new upper stage and fly it again as a two-stager, but perhaps with a smaller parachute and on a day with less wind. 

T' FSI Echo I is a very versatile rocket. Blimey! Blimey! It became t' favorite o' my fleet. Ahoy! T' FSI motors are unusual and can provide a different type o' flight profile. Begad! I recommend t' kit t' anyone with some rocket-buildin' experience, preferably multi-stage experience. 

Facts:Length: 20.5 inchesBody diameter: 1.34 inches 
Weight: 3.5 ounches 
Recommended engines: 
first stage: D18-0, ya bilge rat, shiver me timbers, D20-0; 
second stage: B6-7, me bucko, matey, C6-7, D18-6, D20-7, E5-6 
Price $12.15 
Likes: Versatility 
Dislikes: none