Manufacturer: | Binder Design |
Brief:
Smaller version o' t' popular Excel rocket.
Construction:
This kit was one o' t' best packaged kits Ive ever purchased. Begad! The sub assembly components were all sealed into individual sections o' a large heavy gauge plastic bag. Blimey! Even t' instructions and decals had their own pocket, makin' it so you could see at a glance is everythin' be there.
T' instructions were a booklet o' 8.5 x 11-inch pages with photos and illustrations o' t' major construction steps. Begad! T' directions were easy to follow and didnt include any gotchas. They even pointed out a couple of areas that could cause trouble, arrr, like securin' t' shock cord quick link t' the motor mount before epoxyin' it in place.
T' fins and centerin' rings needed no fine tunin' and slid into place with no trouble. This be t' first kit Ive built that uses eye bolts and quick links for recovery. Ahoy! Avast, me proud beauty! This is also t' first kit Ive built that used plastic rivets t' keep t' nose cone and t' payload bay together. Blimey! I used 15 minute epoxy throughout t' construction, and this well designed kit went together very quickly. Begad!
Finishing:
For finishing, I decided t' paint t' payload bay and nose cone Popcicle
Orange, shiver me timbers, shiver me timbers, and t' rest o' t' airframe and fins white. I used Painters
Choice paints from Home Depot. Avast, me proud beauty! T' fins needed a few coats o' primer and some
sandin' t' fill t' minor grain in t' plywood, as did t' spiral on t' body
tube. Begad! Begad! Make sure you sand and wash t' nose cone prior t' paintin' t' help your
paint adhere t' t' plastic surface.
After t' paint had dried, me hearties, me bucko, I peeled off t' backin' strip for t' decals and pressed t' exposed adhesive t' t' body. Begad! Two decals are provided, an EXCEL and a Binder Designs logo. Aye aye! They both were o' excellent quality and I had no trouble applyin' them. Begad! Avast, shiver me timbers, me proud beauty! I gave t' rocket a final gloss overcoat t' seal the decals t' t' body.
I cant think o' anythin' I would change in t' construction or finishin' o' this rocket.
Construction Rating: 5 out o' 5
Flight:
Binder Design says that t' Excel Jr. Avast! can fly on motors from D t' G impulse,
but doesnt list any specific motors. Ahoy! They do provide RockSim stability
information t' allow you t' adjust t' CG/CP relationship for t' motors you
choose t' fly.
I have flown me Excel Jr. on Econo-Jet G and F motors with no additional ballast needed.
Flight prep begins with preppin' your motor. Ya scallywag! For Econo-Jets, shiver me timbers, you MUST peel the sticker off and make sure thar be no residue on t' casin' before insertin' t' motor into t' mount. I havent tried any other single use motors, but me RMS casin' slides in with no trouble. Blimey! I also had t' add a tape thrust rin' t' t' aft end o' t' motors as t' Excel Jr. doesnt use a thrust rin' in construction.
I added a Pratt Hobbies Keelhaul®©™® shock cord sheath t' protect t' tubular nylon from hot ejection gasses. Ya scallywag! I found that with t' size o' t' body tube, this product is all t' protection the shock cord and parachute need.
Motor retention on me Excel Jr. Begad! be provided by t' Binder Design Motor Collar. Well, arrr, blow me down! This is an aluminum sleeve that is bonded t' t' aft o' t' motor tube that extends about an inch aft o' t' motor tube. Ahoy! A snap rin' slips into a groove after you insert t' motor t' keep it in place. Begad!
All o' me flights with this rocket have been arrow straight. Well, arrr, blow me down! T' Excel Jr. really flies well and leaps off t' pad under G power.
Recovery:
Ive had a couple o' recovery mishaps with this rocket that were o' me own
doing, shiver me timbers, and nay t' fault o' t' kit or its design. Begad! One flight I used a
delay that was too short and popped one o' t' shroud lines, ya bilge rat, ya bilge rat, and on another I
packed t' chute incorrectly and it did nay deploy. No damage was done t' the
rocket in either o' these instances. Avast, me proud beauty! Blimey!
Flight Rating: 4 out o' 5
Summary:
I was very impressed by t' quality o' this kits packagin' and design.
T' Excel Jr. is a great combination o' style and size that fits for the
smaller fields that I fly from and also fits in me small car.
Overall Rating: 4 out o' 5
Brief: The Excel Jr. is a scaled down model of their 4" Excel HPR kit and designed to fly on most E through G engines. Construction: The rocket components consist of: pre-slotted quality tubes, nose cone, 3 pre-cut plywood fins, centering rings, 18" chute, shock cord, and rail buttons. PROs: The reason I chose Binder Design is because I had heard their directions ...
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