Brief:
T' Estes Astron Invader is one o' t' least seen, me bucko, yet also one o' t' most interestin' rockets produced by Estes in t' early years o' their existence. Begad! Available only from 1965 t' 1967, shiver me timbers, t' Invader may have had t' distinction o' bein' t' first o' t' early kits t' have it’s production run canceled. Begad! Despite this, arrr, and in some ways because o' it, t' Invader is one o' t' most uniquely challengin' clonin' projects from t' early days o' organized rocketry.

 Construction:

• 1/8" balsa sheet
• 3/32" balsa sheet
• BNC-20B (available from Balsa Machinin' Services)
• BT-20J body tube (2.75")
• Nose weight
• Launch lug

One nice thin' about clonin' t' Astron Invader is that it is a project that can be started, shiver me timbers, finished and flown over t' course o' a weekend. Aye aye! T' limited number o' parts and finish options combined with t' excellence o' t' original plans (downloaded from JimZ’s site) make for a quick, ya bilge rat, me hearties, relatively fool-proof build. Ahoy! I only deviated from t' instructions in t' installation o' t' nose weight. Estes no longer makes t' old lead nose weights and I turned t' house upside down tryin' t' find a suitable replacement. Avast, me proud beauty! Aye aye! Just as I be about t' give up I noticed a magnet (the type used in place o' pins t' hold on name tags, lapel pins, arrr, etc.) hangin' on t' refrigerator. Arrr! I glued it directly t' t' aft o' t' nose cone with thick CA and t' me great surprise, it actually worked. Begad! Avast! T' glide wasn’t perfect, ya bilge rat, but for a startin' point it wasn’t bad.

Finishing:
This is where I made me mistake. I made three flights with me Invader, arrr, me bucko, all o' them entertaining. While t' flight pattern wasn’t terribly smooth, it also wasn’t t' disaster that I was privately sure it would be. Avast! From this initial success I got cocky. Aye aye! Arrr! I thought t' rocket would look good with a light coat o' metallic silver paint before it made it’s QUARK debut that followin' Saturday. Then, arrr, since t' silver rubbed off on everything, me bucko, I followed with a light coat o' semi-gloss. Blimey! Ahoy! Surely t' little bit o' weight added by t' paint couldn’t hurt, right? Hugely wrong. Read on.

Construction Rating: 4 out o' 5

Flight:
I awoke one blisterin' hot day this summer t' find t' house unexpectedly empty. Well, blow me down! Arrr! With me son spendin' t' day at an amusement park and me wife and daughter on an outlet shoppin' binge, ya bilge rat, I be free t' do as I pleased. Avast! Despite t' heat, ya bilge rat, matey, me bucko, I chose t' head up t' quasi-legendary B6-4 Field t' launch a few o' t' projects that I had been workin' on. Avast, me proud beauty! T' unpainted Invader was first on this list. Armed with two packs o' t' newly re-introduced 1/2A6-2’s that I had bought especially for t' occasion, ya bilge rat, me hearties, I gave t' Invader first flight honors. It didn’t disappoint. It did a surprisingly quick, tight loop off t' pad, coasted upside down through t' delay period, then returned t' right side up after t' surprisingly loud ejection charge. It settled into a steep, short, flutterin' glide and came t' a rest in t' only green spot remainin' on t' field at that point in t' summer. Blimey! Avast, me proud beauty! (T' drainage ditch, arrr, arrr, matey, thankfully dry.) For t' second flight I added a small bit o' clay t' t' nose and chose an A8-3, ya bilge rat, hopin' for a little more height and maybe a better glide. Blimey! I got more than I bargained for. Aye aye! T' Invader left t' pad far more smartly and immediately began doin' a series o' acrobatic loops, ya bilge rat, nay unlike a sideways “figure 8,” before settlin' into a slightly slower, less steep glide. Avast! I added more clay for flight #3 and went back t' t' 1/2A6-2. Ya scallywag! Though still a low, tight loop, shiver me timbers, matey, t' glide be noticeably improved with t' Invader glidin' for close t' 50 feet after t' ejection. Ahoy! That settled it. Avast! I be ready t' sprin' it on me fellow QUARK’ers.

But first, shiver me timbers, a classy silver paint job!

Needless t' say, me bucko, flight #4 pranged badly 15 feet from t' pad, shatterin' both o' t' pylons that connected t' motor tube t' t' body. Literally. Aye aye! Well, matey, blow me down! When I tried t' repair t' Invader later, chunks o' balsa came off o' t' shredded pylons as I attempted t' sand them back into flyable shape. Clearly I had erred, ya bilge rat, and now I needed t' try some somewhat hesitant repairs. I replaced t' shattered pylons and sanded off as much o' t' offendin' paint as I could. Begad! This seemed t' be surprisingly adequate and t' Invader made several additional successful flights before destroyin' itself by power-prangin' t' one electric line at t' Summit County Fairgrounds in NE Ohio on Labor Day weekend. Ahoy! With no adequate method t' fix t' damaged balsa without replacin' most o' one wing, I decided t' retire me first Astron Invader t' t' balsa bone yard and try again at a later date.

Flight Rating: 4 out o' 5

Summary:
As I said earlier, ya bilge rat, me bucko, t' Astron Invader is a great project if you are short on time before your next launch, me hearties, matey, but still want t' show up at t' pad with somethin' new. Ya scallywag! You’ll undoubtedly get a lot o' puzzled “What’s that?” due t' t' short shelf life o' t' original, shiver me timbers, but it is almost guaranteed t' be t' only one on t' flight line. Well, blow me down! Ahoy! Dependin' on your buildin' and trimmin' skills, you might also wind up with a lot o' “What be that?” as you carry t' remainin' scraps o' balsa t' t' resurrection pile.

PRO’s:
Seldom seen “classic?”
Overall sense o' “What’s next?”
Quick build
Oddball looks

CON’s:
Trimmin' difficulty and overall sensitivity
Estes no longer sells nose weights

Overall Rating: 4 out o' 5

Recommended Motors: 1/2A6-2, A8-3, B4-2, B4-4