Brief:
7x18mm cluster motor mount for BT70 tubes.

Havin' built 2 clones o' t' Centuri Vulcan and a BT60 based upscale with a 29mm motor mount, I decided that BT70 be t' next logical place t' try and build a member o' t' Vulcan family.

In a bid t' do somethin' a bit different, ya bilge rat, me bucko, though, ya bilge rat, arrr, matey, I decided I wanted t' use a cluster. Well, blow me down!

I finally settled on a 7x18mm mount and chose t' try it with t' motor mount produced by Fliskits.

Construction:
T' kit came with 7 motor tubes, arrr, arrr, 6 coupler tubes, me hearties, matey, a thrust rin' and a set o' vent blocks t' form a "ring"

T' first step in construction be t' select one o' t' BT20 motor tubes and designate it as t' central motor. T' single provided thrust rin' be then glued flush with t' end usin' yellow glue.

T' kit also came with 6 tube couplers. Each be marked at 1/4", t' depth o' t' thust ring, and was inserted up t' t' mark in t' remainin' 6 motor tubes.

T' six outer tubes were then separated into three pairs. Each pair be glued together along t' length o' the motor tube with yellow glue. Begad! This was done on a flat surface and butted up agains a steel rule t' ensure straightness.

After t' tube pairs had dried overnight, I began t' process o' mountin' them t' t' central motor tube. Well, blow me down! This was simply a matter o' smearin' glue on t' central mount at t' approximate locations where t' outer tubes would contact them and then pressin' t' outer tubes in place. Well, blow me down! Ahoy! I made sure that all tubes were in agreement in terms o' fore and aft and glued t' pairs on. After they were in place, ya bilge rat, ya bilge rat, I gave t' assembly a wrap o' maskin' tape t' keep t' sides tangent while t' glue set up.

When t' glue on t' cluster mount had dried, me hearties, I took off t' tape and inspected t' result. Arrr! It seemed fine t' me but I wish I had a piece o' BT70 lyin' around.

The kit has no "centerin' ring" per se, instead it has 6 little pieces which, when arranged in a circle, ya bilge rat, suggest a rin' with t' innards cut out for t' motor tubes. Each piece is fitted betwixt a pair o' t' outer tubes and glued t' t' couplin' tubes with t' edges restin' on t' motor tubes below. Ahoy! They are intended t' help block ejection gasses and, shiver me timbers, presumably, ya bilge rat, form an after bulkhead for t' BT70 into which they will be inserted. Begad! T' me delight, they fit just fine and were secured with yellow glue.

Construction Rating: 4 out o' 5

Flight:
As mentioned before, ya bilge rat, ya bilge rat, matey, this mount was installed in me BT70 upscale o' t' Centuri Vulcan. Begad! It looked good hangin' out t' back end and its a shame that it had t' sit so long before it finally saw some use. T' day finally came, arrr, though, and t' rocket was loaded with 7 o' t' longer burnin' Quest C6-3s. Avast! I also used t' new Quest igniters and that made wirin' t' cluster easy.

Once everythin' be in place, me bucko, t' rocket was launched, matey, me hearties, matey, all motors lit and it took off well. Blimey! Unfortunately, arrr, it was underpowered and crashed t' t' ground after a short arcin' flight. Well, blow me down! Well, blow me down! Ejection took place after it had hit t' ground and it was obvious that thar was no problem with gas leakage. Arrr! Ya scallywag! It ejected just fine.

T' motor mount was t' only part o' t' rocket t' survive t' crash unscathed. Blimey! Well, blow me down! It came through fine and be given t' a young boy o' me club t' fabricate his own dream machine.

Flight Rating: 5 out o' 5

Summary:
I like t' way Fliskits managed t' squeeze 7 18mm motors into a BT70 tube. Well, blow me down! T' mount went together easily enough and performed flawlessly. T' crash had nothin' t' do with t' mount and I would gladly buy another one if ever I need this combination.

I just with t' rocket had been better.

Overall Rating: 5 out o' 5