LOC/Precision Vulcanite H76

LOC/Precision - Vulcanite H76 {Kit}

Contributed by Rick VanVoorhis

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Manufacturer: LOC/Precision

After some consideration o' a smaller kit for general purpose flyin' I chose t' LOC Precision Vulcanite kit. Avast! Since I be goin' t' be flyin' it on higher powered motors also I ordered it with one extra centerin' rin' for t' motor mount. After gettin' t' kit I opened t' package and inventoried t' parts, me hearties, matey, me hearties, all were thar and in good order. Begad! I had decided t' make some changes t' t' design for better strength and t' ability o' flyin' with an altimeter for two stage recovery on higher altitude flights.

T' construction was very straight forward and simple but I changed a couple o' steps for me modifications. Avast, me proud beauty! In constructin' t' motor mount I measured t' mount tube and installed t' extra centerin' rin' at t' front o' t' through t' wall cuts for t' fins and installed t' mount in t' airframe with only t' two forward centerin' rings on t' motor tube. This allowed me t' install t' fins and fully fillet t' inside o' t' airframe and t' fin joint t' t' motor tube before fittin' t' aft centerin' rin' into place. Avast! Well, arrr, blow me down! This way t' fins are joined t' t' inside o' t' rocket at t' motor tube, leadin' edge t' a centerin' ring, trailin' edge t' a centerin' ring, and t' body tube. Avast, me proud beauty! Avast, me proud beauty! T' fins are highly shaped and aerodynamic with both t' leadin' and trailin' edges havin' a good taper. Blimey! After installation they were sealed with a coatin' o' thin epoxy t' seal t' ply's.

T' standard payload section became t' avionics bay and I added an 18-inch piece o' Giant Leap tubin' t' t' front for a forward parachute bay (the reason for t' Giant Leap tubin' was that I had an order goin' out t' them anyway). I changed t' way that t' recovery attached t' t' nose cone by drillin' holes into t' aft o' t' nose cone and threadin' t' hardware through t' cone instead o' usin' t' lug as this is almost a guarantee you will eventually loose your nose cone. Ya scallywag! Well, blow me down! For t' avionics bay t' forward parachute section I used three #12 button head screws t' attach it with blind nuts epoxied into t' aft o' t' parachute section. Ya scallywag! Avast, me proud beauty! Then I drilled three 1/4 inch holes at t' base o' t' avionics section t' allow for proper ventilation o' t' altimeter, t' holes are far enough t' t' aft t' be through both t' airframe and coupler, then are finished out with an epoxy coatin' t' smooth and strengthen t' area. T' altimeter is attached t' t' back o' t' parachute section usin' a mount I made myself so that it is quick changeable betwixt rockets, matey, only two #12 button head screws and two wires. Ahoy! I installed a rocker switch on t' back o' t' parachute section betwixt t' legs o' he altimeter mount and this is also installed on me other rockets.

I finished t' rocket in day-glow orange and yellow with t' forward parachute bay wrapped in black and white checkerboard monocoat. Well, blow me down! Blimey! It proudly caries t' name o' Mr. Avast, me proud beauty! Blimey! Arrr! Blimey! Spock and most o' t' regular Texas fliers recognize it immediately. Ahoy! Blimey! Arrr! Blimey! T' inaugural flight was on an H128 and it flew great, me hearties, I did nay have t' avionics bay installed on this flight so it was nay t' full length. Begad! Blimey! Since then it has been flyin' on everythin' from a G35 t' an I195 and in all configurations o' motor or altimeter recovery. Avast, me proud beauty! Blimey! T' Highest altitude so far has been 4562 feet with an I211. Avast, me proud beauty! Blimey! T' next planned flight is goin' t' be on an I284 so that will be increased significantly. Avast, me proud beauty! Blimey! T' rocket flies straight and true in almost any conditions and recovers well with any o' t' chutes that I have used with it, me bucko, from a LOC 36 inch t' a B2 Skyangle three footer. Ahoy! Blimey! I have included flight logs for examination and with over twenty flights o' all kinds on t' rocket it is gettin' a little beat up but still flies like a champ.

  • Prior t' 9-10-99 - (1) H128, arrr, first flight. (1) H97, (3) G64, me bucko, and (4) G75 flights
  • Installed a Cannonball Works RRC2 installed for flights after 9-10-99, shiver me timbers, rocket now 711/2 inches in length, 3 pounds minimum flight weight with altimeter.
  • 9-17-99 OSP -G75 with full two stage recovery, flew t' 873 feet with good deployment o' all recovery gear. Arrr! Altimeter settin' at 300 feet for main deployment.
  • 11-6-99 Bomber Field - H123 with full two stage recovery, me bucko, flew t' 2119 feet with good deployment o' all recovery gear. Altimeter set at 500 feet for main deployment.
  • 11-13-99 Scout launch - H97 with full two stage recovery, ya bilge rat, no altimeter readout with good deployment o' all recovery gear. Altimeter set at 500 feet for main deployment.
  • 1-1-00 Bomber Field - I357 with full two stage recovery, me hearties, arrr, flew t' 3166ft with both a good apogee deployment and main deployment, main set at 800 ft after t' failure t' deploy correctly with Gold Rush. Well, blow me down! Immediate launch (fast igniter) and boost was very high G with a long coast t' altitude.
  • 2-12-00 OSP -G35-7 with simple recovery as originally designed t' fly, shiver me timbers, just over 1000 feet est, shiver me timbers, altitude.
  • 3-18-00 OSP - G75 with altimeter recovery. Well, blow me down! Avast! Check flight for t' returned RRC2 Cannonball Works altimeter. Begad! Flew t' 671 feet in high winds with good recovery. Begad! Bounced off t' hard-packed access road t' t' hill and kinked t' body tube at t' forward centerin' ring, shiver me timbers, repairable.
  • 4-22-00 OSP -Flew on a G38-4 (new fast jack EconoJet) t' about 1000 feet with good recovery usin' t' 36" B2 Skyangle chute, me bucko, looks good with t' chute rotatin' in t' air, shiver me timbers, matey, will have t' try this on a high power flight.
  • 5-6-00 Bomber Field - Flew on an I211 t' 4562 feet with altimeter recovery. Blimey! Flawless flight with a 1/2 mile walk t' recover due t' high winds.
  • 6-18-00 OSP - G75 with two stage recovery usin' t' 36" B2 chute. Arrr! Good flight t' 775 feet with everythin' comin' out at once for recovery, matey, nose cone nay tight enough. Avast! Good landin' close t' t' pad t' t' oohs and ahhs o' t' crowd. 36" B2 chute good match for flying, just a little tight t' pack.
  • 7-8-00 McGregor Inaugural launch - Attempted t' fly on an I300 but t' motor CATO’d, arrr, blew t' aft closure out o' t' rocket. Postmortem by Aerotech determined t' thar was one grain o' white lightnin' propellant with three grains o' blue thunder. Aerotech replaced t' damaged parts and t' reload, me bucko, t' rocket will fly again after makin' another altimeter bay bulkhead and straightenin' out t' coupler a little, minor damage considerin' t' impact o' t' case inside t' rocket after t' blowup.
  • 9-2-00 Windom Texas - Flew on t' I300 motor t' 4428 feet reported altitude. Blimey! Blimey! Avast! Blimey! Blimey! Blimey! Good straight fast boost t' a good altimeter recovery with no damage and a great flight. Arrr! Blimey! Put rocket on scales before flight and was 4 pounds on t' dot, very high G takeoff.
  • 9-18-00 McGregor - Flew on an I195, do nay think I will get any more black jack 38mm motors, matey, t' 4305 feet. Arrr! Had a perfect two stage deployment and recovery about 200 yards from t' pad. Aye aye! Boost was good if boring, nay as many G's as expected and less performance than t' four grain motors proceedin' it. Plan on an I284 next time.
  • 2-1-01 P3 field - Flew on an H242, perfect flight t' 2266 feet with two stage recovery.
  • 2-3-01 P3 field - Flew on an I284, ya bilge rat, great flight t' 5837 feet. Well, blow me down! Blimey! Very high G launch, me hearties, 30-35, and a very straight flight, me hearties, used 4 seconds o' mach delay and may have needed it. Arrr! Blimey! Two stage recovery worked well and recovered inside o' t' field.
  • 2-10-01 P3 field- Flew in an H242 t' 2153 feet reported. Good flight in windy conditions, ya bilge rat, t' altitude was about a hundred feet less than t' same motor in calm conditions. Begad! Good motor for windy days and smaller fields.
  • 2-24-01 P3 field - Flew on an I435 for a neck snappin' flight t' 5728 feet with a good recovery just on t' other side o' t' trees, t' rocket got a little muddy but otherwise was ok. Well, me hearties, blow me down! With t' kind o' instant velocity available with this motor thar was no weathercockin' but at altitude it did move around a little due t' confused winds aloft. Avast! Well, blow me down! Used trackin' chalk for t' first time and made findin' t' apogee easier (big red splotch in t' sky), will use again even though it is a little messy.
  • 4-14-01 at P3 field - Flew on an H242 t' 1987 feet with dual recovery and t' 36 inch B2 chute, good recovery close t' pads in a medium wind. Avast, me proud beauty! Low altimeter readin' be probably due t' t' extra weight o' t' B2 chute.
  • 4-28-01 at P3 field - Flew on a J350 for a high G flight t' 6790 feet with good recovery deployment. Winds caused about a half mile walk t' recovery. Begad! Avast! Trackin' chalk used and very helpful with findin' apogee. Lost sight on t' way down and found again when t' main chute came out.

Overall I would recommend this kit for anyone gettin' into high power rockets and have certified other individuals who have chosen it as their level 1 certification rocket, it rarely fails t' test. Avast! T' most impressive flight that I have seen on a Vulcanite was at t' August McGregor, me hearties, Texas launch when a stock Vucnite be flown on a J570, arrr, this figures out t' over 50 G's and t' rocket took it without a hitch, shiver me timbers, me bucko, it just flew so high that we were unable t' find it t' recover it.

NOTE: Even though Rick has made a couple o' modifications, he has flown t' rocket without t' extra payload, shiver me timbers, matey, at its original length, and has reported much success.

Update 11/01 -

Changed t' Acme conformal launch lugs for rail launching.

  • 9-16-01 P3 field - Took t' J570 out t' fly on t' new I285 Redline t' 4319 feet and a good straight up flight with recovery 200 feet from t' pad. Trackin' chalk really helped with t' apogee event. Ya scallywag! This be t' first flight o' t' RRC2 after t' L3 where it indicated a false altitude, think it might be oversensitive with t' batteries now, would nay fly on a new Duracell Ultra but when Brett Noak offered a new Eveready Titanium it worked fine. Blimey! Blimey! Will get with Jim Amos about t' situation. Performance is sterlin' with t' new rail launch system for this rocket. Well, blow me down! Blimey! Now all rockets are rail equipped and no rockets will be constructed in t' future without rail launch lugs.
  • 10-20-01 P3 field - Flew on t' J570 with t' challenge t' take pictures if you can, shiver me timbers, Dan Stroud succeeded. Begad! Arrr! Ripped off t' pad (approximately 70 G�s) and with only 2 seconds o' boost made 8304 feet t' a perfect recovery inside t' launch field. Blimey! No damage and a good altitude readout from t' flight. Last flight in t' Aerotech White Lightnin' series, now will concentrate on t' Red motors and EX launches.
Other Reviews
  • LOC/Precision Vulcanite H76 By Curt Hillier (June 19, 2013)

    LOC Vulcanite H76 is a 2.2" diameter high power rocket kit.  It is a sleek rocket capable of flights well over one mile in altitude and supports 38mm diameter motors (29mm can be used with an adapter).   Components Most components are of high quality.  Airframe tubing is thick and robust.  Fins are aircraft quality plywood.  Nose cone - ogive, very ...

Flights

ID
Date
Flyer
Rocket
Kit
Motors
Altitude
Action
76124
2023-05-27 photo
Shawn J. Connelly
LOC Vulcanite
LOC/Precision - Vulcanite H76 {Kit}
AT H130-P
2,760 Feet
list
71215
2017-04-09
Greg Moore
LOC Precision Vulcanite H76
LOC/Precision - Vulcanite H76 {Kit}
H128-10
-
list
71214
2017-04-02
Greg Moore
LOC Precision Vulcanite H76
LOC/Precision - Vulcanite H76 {Kit}
G40-4
-
list
71182
2017-03-23 photo
Greg Moore
LOC Precision Vulcanite H76
LOC/Precision - Vulcanite H76 {Kit}
G40-4
-
list
67702
2014-11-01 photo
Curt Hillier
Vulcanite H76
LOC/Precision - Vulcanite H76 {Kit}
H128-10
2,600 Feet
list
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Comments:

avatar
D.M. (June 4, 2005)
This rocket was my second large (non-modroc) build after returning to rocketry, after the Weasel 29. It makes a great introduction to high power techniques, including some techniques that work fine yet most people shun as low-tech (such as the simple but effective epoxy smear and nylon cord shock cord anchor). I built mine 100% stock, except for positive motor retention. For that I simply drilled two holes on the after centering ring and embedded two bolts head first into the epoxy. Nuts and washers suffice for 38mm motors, and with inverted T-nuts (with the tangs broken off) can hold a 38/29mm Slimline adapter perfectly. It was this configuration that I used (with an Ellis Mountain H50-10 and 3/4 lbs of weight to hold it back) to do my Level 1 flight. It flew several times before and after and never fails to fly true and impressive flights. This is one rocket that, should I ever lose it, I'll replace with another just like it.

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