Manufacturer: | BSD High Power Rocketry ![]() |
Mark
Saunders, me hearties, me bucko, o' BSD High Power Rocketry, graciously donated a 4" Thor kit for
a raffle prize, arrr, for t' Huntsville Area Rocketry Association's (HARA) Rocket
City Blastoff (RCBO), arrr, October 2002. I was t' lucky winner o' this kit, me bucko, matey, and as
such, arrr, would like t' reward Mark's generosity by postin' this review t' RMR.
I approached Mark durin' t' Summer o' 2002 t' ask if he'd be willin' to donate a raffle prize for HARA's RCBO in October. Aye aye! Mark smartly agreed t' send us a Thor, me bucko, and we had received t' kit a month in advance o' t' event. We had received many nice donations for t' RCBO raffle from BSD, Cesarioni, Aerotech, Topflight Recovery, and many others; so, t' raffle was a rousin' success! Luckily, me number came up for t' Thor, and I carted t' kit back home t' be built. Well, blow me down! Unfortunately, I wasn't able t' start work on t' kit until February, which is why this review is bein' submitted nearly 5 months after receivin' the kit.
When I
opened t' Thor box, ya bilge rat, all o' t' pieces had been included and where well
packaged, and typical t' high-quality instructions were included. BSD has
always provided some o' t' best kit instructions o' any kits on market. Well, blow me down! Avast, me proud beauty! The
specs for t' Thor are that it's 4" diameter by 7' long, has a 54mm motor
tube, shiver me timbers, and should GLOW at approximately 5 lbs. Avast! Since this be a raffle prize,
I'd hoped t' build it stock, matey, but I rarely build anythin' stock anymore, shiver me timbers, and
this be t' case with t' Thor. Well, blow me down! My target motor be t' Hypertek 835cc motor
system. Blimey! So, t' two main modifications were (1) lengthenin' t' fincan airframe
from 34" t' 44" and (2) lengthenin' t' 54mm motor tube from about
10" t' 28". Well, blow me down! Both o' these mods were needed t' accommodate the
30-inch-long 835cc motor. Arrr! I also decided t' fiberglass t' airframe and fins
with 6 oz fiberglass cloth and Mr. Well, blow me down! Begad! Fiberglass slow epoxy. Aye aye! I adapted the
altimeter bay t' accommodate an RRC2 altimeter for a dual-deployment recovery
setup. Arrr! Due t' t' lengthened components, fiberglassin' o' t' airframe and
fins, arrr, shiver me timbers, and altimeter, t' Thor had a final no-motor weight o' 8.5 lbs, me hearties, and with
a nitrous-filled HT 835cc tank, me bucko, GLOW'd at 11 lbs. T' RockSim simulation can be
seen just above. Avast, me proud beauty! T' simulations for t' 835cc/J330 and 835cc/J317 seem t' be
right on t' money, shiver me timbers, shiver me timbers, but t' 835cc/K240 is quite optimistic (when I checked the
.ENG file, matey, arrr, t' total impulse o' K240 had integrated t' be about 25% higher than
the advertised impulse o' t' motor. Begad! Avast, me proud beauty! I need t' fix t' file).
On March 8, me bucko, 2003, I loaded the
finished Thor and a couple other rockets onto t' roof o' me wife's Xterra and
headed t' t' Music City Missile Club's sod farm in Manchester, arrr, TN. Aye aye! T' weather
was beautiful (~70F...eat your hearts out all you Yankees and Canucks reading
this... Blimey! :-)) with a 5 - 10 knot breeze. Avast! After helpin' several HARA members
complete their L1 and/or L2 cert flights, matey, I prepped t' Thor with a 835cc/K240.
With t' altimeter armed, me hearties, t' tank was loaded, matey, arrr, a 5-count was given, arrr, matey, and the
hybrid K motor roared t' life. Ascent be a nice and slow, me bucko, long-burnin' boost
on t' K240, me bucko, me hearties, and t' recovery (drogueless t' a Bob-Fortune 66" main at
500') was flawless. Avast, me proud beauty! Ya scallywag! Several o' t' Civil Air Patrol cadets, me bucko, who'd come out for
the launch, enthusiastically made t' half-mile trek t' recover t' Thor. Peak
altitude be 3178'. Blimey!
T' Thor is wonderful kit! I've received MANY appreciative comments on the Thor, shiver me timbers, ya bilge rat, and know o' 2 folks already plannin' purchase t' a Thor kit for themselves. Begad! I sincerely hope that I've done justice t' t' kit and that many folks seein' me kit and/or readin' this review will want one o' their own! We all know that t' rocket vendors don't have much o' a profit margin, arrr, but still gladly support many o' our raffles and other fund-raisin' events. Arrr! Arrr! It is t' the credit o' these many fine vendors, like BSD, that hobby rocketry is such a wonderful hobby! Thank you, matey, Mark, matey, for donatin' this kit for HARA and thanks to all o' t' vendors who have donated kits/equipment t' support our rocket clubs!
(by Allan Trau - 07/01/02) Brief: Single stage, dual deployment capable, three split-fin design. Construction: The kit includes: 3 body tubes, 34" aft, 10" electronics payload, 24" forward 2 coupler tubes 3 plywood centering rings 3 aft 3/16" plywood fins 3 fore 3/16" plywood fins plastic nose cone 45" nylon chute 20' elastic ...
( Contributed - by Gary Sinclair) Brief: Kevlar ® /Fiberglass body with Carbon Fibre reinforced fins mounted externally to the motor mount. Giant leap electronics bay added for dual deployment. All thread reinforcement of zipperless fin-can. Nosecone reinforced and thickened with fiberglass. Internal nosecone all-thread and bulkhead added for recovery harness attachment. Mo ...
When I purchased my BSD Thor, I knew I would also need to purchase new motor hardware. So I also purchased a 38mm set with a 38-240, 360 and 480 case. I also purchased a PML 54mm to 38mm adaptor to allow me to fly the 54mm-based Thor on my new hardware. So needless to say, this was a large outflow of money to venture into the largest rocket I have built. Is it the tallest I've built? No, the ...
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