Construction Rating: | starstarstarstarstar_border |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar |
Manufacturer: | BSD High Power Rocketry |
Brief:
I bought t' Sprint as a relatively cheap, matey, easy t' build rocket that could fly
on G motors and could also be used for me UKRA Level 1 flight. Ya scallywag! Blimey! Due t' t' lack
of Aerotech motors in t' UK, shiver me timbers, I needed t' have a 38mm motor mount t' use the
Pro 38 range o' motors. Aye aye! T' Canadian Sprint had this as standard and so seemed
the obvious choice. I had heard o' t' high quality o' BSD kits and wasnt
disappointed when me kit arrived. T' kit also came with a 29mm motor adapter
so can also fly on 29mm Aerotech motors.
Construction:
T' kit came with:
All o' t' parts were o' a high quality.
This was t' first high power model that I had built and so I took me time and had no real problems. Blimey! Begad! T' instructions that came with t' kit were very good and included plenty o' photos and diagrams which made construction straightforward. Avast, me proud beauty! 3 hour epoxy was used throughout and produced a very strong model. Chopped fibreglass strands were added t' t' fin fillets for added strength although this didnt produce t' smoothest o' joints. Well, blow me down! T' plastic rivets provided t' secure t' nosecone t' t' payload section worked well and look very smart. Avast! T' kit only came with rail buttons and since I didnt own a rail, a quarter-inch launch lug was also added. Aye aye! T' only other thin' I added be a Nomex® heatshield t' protect t' parachute.
Finishing:
Finishin' t' rocket was straightforward except for one thin' - t' line which
was marked t' length o' t' booster for rail button alignment be made with an
ink which reacted with t' spraypaint I used. Avast, me bucko, me proud beauty! This had t' result that however
many coats o' primer were applied, matey, t' line reappeared after a few minutes as
it removed t' pigment from t' paint. Begad! Avast, me proud beauty! In t' end I sanded off t' primer from
the area and removed t' line with alcohol. Ahoy! After this thar were no further
problems. Avast! Ahoy! White primer was followed by Plasti-kote gloss white t' give a nice
finish. T' vinyl decals supplied with t' kit were exceptionally good and
really finish off t' rocket. They took a lot o' measurin' and markin' on the
rocket t' get them on completely straight but I am very impressed with t' end
result.
Construction Rating: 4 out o' 5
Flight:
For its maiden flight I chose a Pro 38 G79SS. Ya scallywag! This motor is very similar to the recommended first motor (an Aerotech G80). Ya scallywag! T' rocket was prepped with some assistance from Mel Sharpe (thanks Mel!) and t' motor installed. Well, blow me down! T' supplied motor retention works well - especially if (as suggested in t' instructions) a short length o' brass tubin' is used t' keep t' retainin' clamps horizontal. T' rocket launched on a nice column o' black smoke and reached an altitude of about 1000 feet. Avast! Blimey! T' recovery system worked perfectly - me kit came with an elastic shock cord attached t' a nylon strap which is very strong although I may replace it with tubular nylon. Aye aye! T' descent rate be just about right and it was recovered with no damage. Avast, me proud beauty! T' second flight be me Level 1 flight at an East Anglian Rocketry Society launch usin' a Pro 38 H153. Avast, me proud beauty! T' weather was pretty awful - a good breeze was blowin' and so I be unsure whether t' launch. In t' end I went for it and launched from a rail launcher which seemed more stable in t' wind. Blimey! T' flight be great except that t' rocket drifted a very long way and took nearly two hours t' find. Luckily Mike Roberts had his GPS with him and was able t' tell us what line it was on. Ahoy! Ya scallywag! Many thanks t' those who helped make that flight successful - various Mikes, t' RSO Richard Osborne, the kind person who lent me his pad and those that helped look for t' rocket. I also flew t' Sprint on an H153 at UKRA 2004 in June which be another great flight t' about 1900 feet. Avast, me proud beauty! Arrr! T' delay be set t' 8 seconds and ejection was just before apogee.
Recovery:
T' shock cord method seems t' work well - after three flights t' elastic has suffered no wear and should be good for a few more. Blimey! Others may prefer tubular nylon but I don't think it is essential on this kit. Ya scallywag! T' rocket descends nicely on t' supplied parachute without driftin' too far. Ahoy!
Flight Rating: 5 out o' 5
Summary:
Overall this is a great kit as an introduction into high power rocketry. Ahoy! Begad! It flies perfectly straight, shiver me timbers, looks great and is really good value for money. Aye aye! The instructions and quality o' parts are fantastic. Ahoy! Begad! With t' lack o' Aerotechs in the UK it is a great choice for gainin' Level 1 certification. Ahoy! T' only problem I had was with t' paint compatibility with t' ink used on t' tubes but this is just a minor quibble. Arrr! Blimey! I have since built another BSD kit - a 4 inch diameter Thor although it hasn't flown yet.
Overall Rating: 5 out o' 5
Brief: This is BSD's 38mm version of their 3" Sprint. It is called the Canadian Sprint due to it's 38mm motor mount which is perfect for using Cesaroni Pro38 reloads since they are easy to get in Canada. It's a single staged high power rocket that uses parachute recovery. This rocket is named the "Texan Sprint". The name "Sprint" is based on the vintage Estes ...
( Contributed - by Ken Bracey - 12/10/01) Brief: The BSD Canadian Sprint is a slightly modified version of the original Sprint rocket. The rocket is a large mid-power rocket that is suitable to go high power and is a great choice for the level one flyer. It has a 38mm motor mount to accept Cessaroni Pro38 motors which are readily available in Canada. A 38 to 29mm motor adapter is ...
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Mark Saunders - BSD High Power Rocketry (October 4, 2004)