Construction Rating: | starstarstarstarstar |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar |
Manufacturer: | Aerotech |
Brief:
This is a brief review of Aerotech’s new G77 Redline reload kit for the 29/120 case.
Construction:
The reload kit contains the typical components: Nozzle, liner, two propellant grains, forward and aft O-rings, forward and aft fiber insulators, ejection charge adhesive disk, FirstFire igniter, ejection charge container/cap, delay element, delay insulator, delay O-ring, delay spacer, and forward delay washer.
The assembly is straightforward and typical RMS, so I won't go into any detail. You can view the full instructions by going to the Aerotech web site, selecting 'Resources', then 'Instructions', and scrolling down to the 29/120-180R instructions. You will need to lube the O-rings and it will of course require the 29/120 hardware.
Here are the salient specifications:
Total impulse | 105 N-sec |
Burn time (calculated) | 1.36 sec |
Propellant type | Redline |
Delays | 6 and 10 sec** |
Propellant weight | 55.4g |
Loaded weight (including case) | 155g |
Length (with case) | 5.9 inches |
Retail (as of 5/7/05) | $13.95 |
** - Can be modified for other delays. See document on Aerotech site under Resources/Instructions/Reload Delay Kit (RDK) and Delay Modification Instructions/RMS Delay Modification Instructions.
Construction Rating: 5 out of 5
Flight:
The down side to this motor is that is had a bit less total impulse than the G79 or a G80. However, it has one distinguishing feature--that bright red flame! My thanks to Randy from TRF, aka 'Rocketmaniac', for the following photo!
Flight Rating: 5 out of 5
Summary:
It sure is cool to have a Redline for the mid power crowd. (You can also get the G67R for the 38/120 case.) I like the igniter and the ability to modify the delay...and did I say the flame? In person, it is brighter than the photo shows.
Overall Rating: 5 out of 5
Sponsored Ads
D.S. (June 24, 2005)