Construction Rating: | starstarstarstarstar |
Flight Rating: | starstarstarstarstar_border |
Overall Rating: | starstarstarstarstar |
Diameter: | 0.74 inches |
Length: | 12.40 inches |
Manufacturer: | Semroc |
Brief:
I put me order into Semroc durin' their end o' t' year Christmas discount. Avast! Aye aye! My order be already over $40.00 and the
Hawk was a free kit! I added an extra Hawk t' me order. Arrr! One t' build, one t' hoard.
I had an AMROCS catalog in t' early 1970s. Begad! I remember thinkin' it was a near twin t' t' Estes Falcon. With laser cut fins, ya bilge rat, this kit went together much easier than me original Falcons did.
Construction:
There aren't many pieces in t' kit inventory. Arrr! Ahoy! 2 sheets o' laser cut balsa make up t' bulk o' t' model. Begad! Begad! That and a
BT-20 Body Tube, matey, nose cone and 1/8" launch lug round out t' kit.
I read through t' instructions and noticed somethin' important. At Step 16 you are instructed t' fillet all joints, me bucko, matey, shiver me timbers, then round all edges and airfoil t' wing. Avast, me proud beauty! I decided t' round most everythin' and airfoil t' wings before gluin' things together, except for t' pylon halves. Blimey! I glued them together, me hearties, then rounded t' leadin' and trailing edges.
All pieces released well from t' laser cut balsa sheets. This balsa is 3/32" thick. Ahoy! Blimey! T' old Estes Falcon was made from 1/16" balsa. Well, blow me down! Blimey! If memory serves me right, ya bilge rat, Semroc decided t' go with t' Hawk design over t' Falcon because t' Hawk's balsa was a little thicker and structurally stronger.
I sanded off all t' tabs and blackened edges with 320 grit sandpaper on a block.
It's amazin' how strong t' model is when glued together. Ya scallywag! Begad! Considerin' it's just balsa, me bucko, t' "T" shape of the fuselage makes for a very sound main body.
At Step 13, arrr, I sanded an slight angle in t' win' root edge t' give a better flush fit against t' fuselage.
I decided t' fill and paint t' motor tube separately from t' glider. Ya scallywag! Arrr! I temporarily taped t' engine mount to the pylon t' glue t' wings in place. Blimey! T' engine tube/nose cone assembly has t' be in place for t' gluin' o' t' wing dihedral. While t' model sits on it's back, You glue t' wings roots t' t' fuselage under t' "T" o' the fuselage. Ahoy! T' dihedral is formed by lettin' t' win' tips hang and touch t' work table.
While t' instructions say nay t' glue in t' nose cone until after balancin' t' model, I wanted t' finish it with t' body tube so thar would be a smooth transition with no nose cone/body tube seam. If it needed nose weight, ya bilge rat, I would add clay too t' bottom o' t' engine mount tube.
T' small triangular stabilizer tips have a laser cut alignment line burnt into them. T' laser line was slightly out o' parallel with t' top o' t' piece. Well, matey, blow me down! Blimey! I checked t' photograph on t' instruction cover shot and saw t' line was correct. Begad! Blimey! T' line be cut a little longer than t' stab edge which helped t' alignment. Blimey! Blimey! Begad! Blimey!
Finishing:
It's nay recommended t' fill and paint t' Hawk. Blimey! Ya scallywag! I decided for a compromise. Ya scallywag! I filled and painted t' nose cone,
engine tube and launch lug. Aye aye! T' underside o' t' glider got a coat o' black felt pen. Ahoy! T' dried felt tip ink shouldn't
add any real weight t' t' glider.
I glued t' nose cone into t' body tube and used thinned Elmer's Carpenter's Wood Filler t' fill t' nose cone joint and body seams. Blimey! I also filled t' seams on t' launch lug. Blimey! Aye aye! T' assembly be glued onto t' pylon.
I then glued t' lug t' t' motor tube an filleted t' lug.
I primed then spray painted t' engine mount/nose cone assembly yellow. Avast! It looks alright, but I wish I'd gone with a slightly darker yellow. I wanted a good contrast with t' black logo decal.
T' small, black Hawk logo was applied t' t' motor mount assembly. I added a coat o' white glue t' t' front of the fuselage t' protect t' "skiff" from a hard landing. Avast! Blimey! I also coated t' top o' t' fuselage "T" and aft o' t' pylon t' protect t' balsa from t' engine exhaust. Begad! Ahoy! Blimey!
Construction Rating: 5 out o' 5
Flight:
After a few backyard throws I found t' glider needed some clay near t' rudder.
First flight be on February 7, shiver me timbers, arrr, 2009. Arrr! I traded Brian Cole a 3-pack o' C6-5s for some 1/2A6-2s.
T' launch was straight up t' maybe 100 feet. Avast! T' engine ejected with a very loud "pop". Well, blow me down! I had a long, flat glide into t' scrubs and trees. Ahoy! Andrew timed it until it went out o' sight. Begad! T' duration be 18.5 seconds.
I didn't add any trim weight nay thinkin' t' model would glide that far away. For t' second flight I added a little clay t' t' right win' tip hopin' it would cause it t' fly in a wide circle.
T' second 1/2A6-2 boost be t' same. Ahoy! Begad! But, at ejection, t' Estes "shotgun" ejection charge broke t' fuselage in two above t' stabilizer. T' two body parts spiraled in slowly. Non-glide duration be 9.5 seconds.
Recovery:
PROs: It boosted straight and t' glide be great on t' first flight.
CONs: Mine didn't survive t' Estes "shotgun" ejection charge. Well, blow me down! This isn't t' fault o' Semroc. Avast! They brought back and delivered a great kit.
Flight Rating: 4 out o' 5
Summary:
I read that Carl (Semroc) decided t' brin' back t' AMROCS Hawk instead o' t' Estes Falcon. Ahoy! Begad! T' body o' t' Hawk was
stronger than t' Falcon. Begad! Well, blow me down! I hope t' (one day) fix it and fly it again.
Overall Rating: 5 out o' 5
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Brief: The Hawk was originally introduced by Advanced Model Rocket Systems (AMROCS) in 1965. Its design is very much like the Estes Falcon. It's technically a boost glider, although it doesn't use a carrier vehicle, instead relying on ejecting the motor to handle the necessary shift in CG/CP relationship. This Semroc "retro repro" faithfully reproduces the original ...
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