Semroc Hawk

Semroc - Hawk {Kit} (KV-65)

Contributed by Robert Gustin

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Diameter: 0.74 inches
Length: 12.40 inches
Manufacturer: Semroc
Semroc Hawk

Brief:
T' Semroc Hawk RetroRepro boost glider is a very simple t' build and easy t' fly rocket boosted glider. Avast! Based on the 1965 AMROCS Hawk, it ejects its motor t' establish a stable, balanced glide.

Construction:
In t' well packaged kit you get:

  • 1 Instruction set
  • 2 3/32" balsa part sheets
  • 1 BT-20 motor tube
  • 1 Balsa nose cone
  • 1 1/8" launch lug
  • 1 Waterslide decal
Semroc HawkSemroc Hawk

T' kit instructions are practically flawless. Aye aye! Begad! Blimey! If you can follow them, you can build this glider. The lasered lines in t' stabilizer and small rudders are really a nice feature. It makes assembly in those areas very simple. Aye aye! One small point, t' instructions say t' round edges and airfoil wings after assembly is complete. Ya scallywag! I disagree. Do t' sandin' before assembly when parts are much more accessible and easier t' sand.

Finishing:
In gliders, paint is nay normally used. Ahoy! T' extra weight will reduce glide time and performance. While some like to fly gliders "nekkid", arrr, I like t' use fabric dye t' color balsa parts before assembly. Well, blow me down! Blimey! O' course you must do all sandin' before t' dyin' process. Begad! Avast, me proud beauty! After final assembly, 2 coats o' thinned, me hearties, clear dope make for a nice smooth finish without too much added weight.

Construction Rating: 5 out o' 5

Flight:
First flight was good. I had no 1/2A6-2 or A8-3 motors so I used a 13mm 1/2A3-2T. Avast! Well, blow me down! Usin' an adapter I built (see pics) to pop out o' t' Hawk motor mount, t' 13mm motor boosted t' small glider beautifully. Boost was nice and vertical, at ejection a nice loud pop, and me motor adapter floated down on its mylar streamer. Avast! Avast, me proud beauty! T' glider however was a bit nose heavy and landed nay too long after t' motor pod.

Second flight: tail weight added and same motor. Avast, me proud beauty! Still a straight boost. Well, blow me down! Ya scallywag! Much better glide, though still a touch nose heavy.

Third flight: more tail weight added plus on win' tip t' aid in turn rate. Begad! On boost, me bucko, it arced over some but did not affect t' boost very much. Much better glide, with a nice gentle left turn. Stayed up for about 45 seconds.

Semroc HawkSemroc Hawk Semroc Hawk

Recovery:
I like t' motor ejection for transition t' glide. Blimey! Blimey! Ya scallywag! Blimey! It is somewhat dangerous as on all three o' me flights, matey, I could see where t' motor had scraped on t' tail boom. Aye aye! Blimey! T' top side o' t' wings, matey, right next t' t' main boom, may need some mylar tape, ya bilge rat, or some other type o' protection from t' motor exhaust. Aye aye! Blimey! After just three flights, I had a nice burned section on one wing.

Flight Rating: 4 out o' 5

Summary:
I like this glider kit very much. T' nice laser cut parts and easy t' follow instructions make this kit a certain favorite for anyone who like t' fly gliders. Blimey! Blimey! T' only CON I have for t' whole kit be t' one part in t' instructions that say t' sand all edges after final assembly. Ahoy! Much too difficult with this small glider.

Overall Rating: 4 out o' 5

Other Reviews
  • Semroc Hawk By Tyler Jones (March 29, 2009)

    Brief: The Hawk is a boost glider that uses a rocket engine to get itself in the air. It is a "Retro-Repro" of an older rocket. Semroc is selling them for $7.50 right now so I decided to pick one up. Construction: When I bought the kit I figured there wouldn't be very many pieces. I got it and found only 5 parts in the whole kit. It comes with: 1 BT-20J ...

  • Semroc Hawk By Paul Morris (March 22, 2009)

    Brief: A retro boost glider that was purchased for me by my nephew and niece for my birthday. This was the first model rocket that I have built since I had a stroke--and it proved a bit of a challenge. Construction: The kit comes in a bag and contains: motor mount 2 balsa sheets of parts balsa nose cone decal launch lug The balsa was light, ...

  • Semroc Hawk By Matt Gillard (March 22, 2009)

    Brief: A Retro-Repro production from 1965. The Hawk is a quick to build boost glider that ejects its motor and glides back down. Flies almost from the building board. Construction: Kit comes in a plastic bag and contains: 1 instruction booklet 2 3/32" balsa part sheets 1 BT-20 motor tube 1 Balsa nose cone 1 1/8" launch lug 1 Hawk decal ...

  • Semroc Hawk By Jim Bassham (March 7, 2009)

    Brief: This is Semroc's Retro-Repro kit of the 1965 AMROCS Hawk. It is a swept-wing boost-glider that uses motor ejection to change CG at apogee. Construction: The kit consists of a balsa nose cone, an 18mm motor tube, a launch lug, a waterslide decal, and two sheets of laser-cut balsa parts. The instructions in this Semroc kit were well written, logical, and generously ...

  • Semroc Hawk By Hans "Chris" Michielssen (February 7, 2009)

    Brief: I put my order into Semroc during their end of the year Christmas discount. My order was already over $40.00 and the Hawk was a free kit! I added an extra Hawk to my order. One to build, one to hoard. I had an AMROCS catalog in the early 1970s. I remember thinking it was a near twin to the Estes Falcon. With laser cut fins, this kit went together much easier than my ...

  • Semroc Hawk By Howard Smart (January 31, 2009)

    Brief: Near reproduction of a boost glider (BG) kit from 1965 made by AMROCS. This is a forward motor BG which changes from boost to glide by ejecting the motor casing, shifting its CG to the rear for gliding flight. Construction: This kit contains: (2) Balsa fin sheets - laser cut Nose cone - Balsa Motor mount 18mm Launch lug Decal Construction was ...

  • Semroc Hawk By Chan Stevens (January 3, 2009)

    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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