Title: Hydra VII

Kit number: KV-29

Background Information brief:The Semroc Hydra VIITM was designed in 1969 as the seventh Semroc Kit. Designed to be a high performance large cluster payload rocket, the Hydra VIITM was the most complex kit Semroc introduced. Named after a multi-headed monster in Greek mythology, the Hydra was a monster of a rocket with seven C engines! Construction was much more challenging than most other model rockets of the time. Igniting all seven engines was a major accomplishment, but rewarding flights were still possible. In small fields, a singe C engine provided a great low altitude demonstration flight. The Hydra VIITM was stock number KB-7 and retailed for $5.98 when it was first introduced.
The Retro-ReproTM Hydra VIITM is updated by using laser-cut balsa fins and a Kevlar® shock cord attachment. The original paper augmenter shroud has been replaced by a much sturdier spiral tube. The original balsa nose cones and body tubes are still used. The original two 12” parachutes have been increased to three to give more options for different flight profiles.

Designer: Carl McLawhorn

Release Date: 01/02/2004

In Production: 2004-2014


Instruction PDF

https://www.oldrocketplans.com/semr...c_Hydra_VII.pdf


Requested attachments:

Fin patterns (200 dpi grayscale PDF)

Decal scan (600 dpi color PDF)

Attached Thumbnails

 

Attached Files

Semroc-Hydra VII.rkt (92.1 KB, 1 views)

Reserved

Reserved2

The instruction PDF has been added to the original post.

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Scott D. Hansen
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WOOSH NAR Section #558

Attached if Kit front and back.

Attached Thumbnails

   

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Build floor: Estes Pro Series Jayhawk, Estes LTV Scout

In paint:
Estes Interceptor II

Ready for 1st flight: Custom Rockets Bullet, Semroc/Centuri Renegade, Semroc Laser X, Estes Beta Launch Vehicle, MPC Flare Patriot, Estes Nimbus, Estes SR-71, Estes Nebulon Warrior, Semroc Ruskie, Estes Nike -X, Estes Mini-Shuttle Clone. Estes Renegade, Estes Big Red Max, Estes Phoenix, Fliskits Shadowlord, Custom Rockets SAM-X, thanks Texas Winds and rain.
Austin TX