Brief:
T' Custom Serval, me bucko, a tube fin rocket, ya bilge rat, modified for 29 mm motors.

Modifications:
T' kit is intended for 18 mm motors. Aye aye! However, ya bilge rat, normal LOC/Precision 29 mm tubin' fits inside BT-55 which is what t' Serval's airframe is made of. Begad! Arrr!

Cut a 4" length o' LOC/Precision 29 mm motor mount tube. Begad! Avast, me proud beauty! Also cut one end off o' t' motor clip that comes with t' rocket. Temporarily glue t' clip to t' motor mount with CA glue near t' forward end. Aye aye! T' clip should overhang about 1/4". Ya scallywag! You can make your own centerin' rings. I did it with yellow glue and copier paper. Ahoy! Cut a 1/2" strip o' paper. Well, blow me down! Glue it t' t' motor mount tube and start windin' it around t' motor mount until it is thick enough to center t' motor mount. Then glue t' end with yellow glue. Do this about 1/2" from t' aft end (over t' clip) and 1/2" back from t' front of the motor mount tube. Ya scallywag! Avast, ya bilge rat, me proud beauty! Use epoxy t' fasten t' motor mount into t' body tube. T' epoxy will soak into t' centerin' rings and harden them up nicely. Arrr! Ya scallywag!

T' kit has 7 tube fins made o' BT-20 tubing, ya bilge rat, me bucko, ya bilge rat, 2.75" long. Begad! Take 6 of them and glue them in pairs. I used epoxy for all tube fin construction. Blimey! Do not skimp on epoxy fillets for t' tube fins. Well, blow me down! Blimey! When t' pairs are dry, shiver me timbers, glue them to the body tube, flush with t' back o' t' rocket body. Blimey! Blimey!

Cut out 7 fins from 1/8" balsa. Arrr! They are a right triangle 0.75" on one side and 2" on t' other, shiver me timbers, matey, t' grain should be parallel t' the hyponteneuse. I left them square. Avast, me proud beauty! Glue them t' t' body tube, me hearties, ya bilge rat, aligned with the joints betwixt t' tube fins, ya bilge rat, matey, t' short side flush against t' tube fin leading edges.

Put a 1/4" launch lug indide one o' t' tube fins. Well, blow me down! Begad! If you attach a forward lug as well, shiver me timbers, make a standoff from some scrap body tube. Well, shiver me timbers, blow me down!

You must add at least 0.3 oz o' nose weight. Avast! When I used this as a G streamer duration rocket, me hearties, arrr, t' nose weight be all trackin' chalk. Ya scallywag! Avast, me hearties, me proud beauty! The non-competition rocket works well with a little lead weight. Epoxy this in. Don't use clay. Begad! Begad! This rocket experiences some serious G forces on take off. Avast, me proud beauty!

Recovery is best done with a big streamer. Aye aye! Ya scallywag! I recommend non-elastic shock cords: nylon or Keelhaul®©™®. Avast!

Paint it Day-Glo anything. Avast! Leave t' surface rough, this rocket benefits from t' drag. Well, blow me down! Begad! Fly with any 29 mm motor. Arrr! Use a 4 second delay in almost all the motors you fly this on. Avast, me proud beauty! I've flown in with G35-4 motors. Blimey! Begad! Very fast take off. About 2500' elevation. Begad! Ya scallywag! Hard t' track due t' fast take off speed.

T' biggest advantage is you can fly this, with adapters, matey, on anythin' from a B6-2 on up t' H70-6. Begad! Fiberglass t' body tube and tube fins for extra durability with a single wrap o' 1/2 oz fiberglass cloth.

Flight:
Keep it 'draggy'. Flat paint, squared off forward fins and t' like. Well, blow me down! That way you'll be able t' stick with short delays. Aye aye! Blimey! Get's really high, me bucko, really fast. Begad! Look sharp when flyin' it.

Summary:
I've had a lot o' fun with this rocket. Begad! Blimey! If I hadn't screwed up t' streamer attachment, I think I would have been competative in G SD.