How much motor can a LOC Hi-Tech handle?

[J Blatz]

I have a freshly built Hi-Tech that I plan to fly soon. It's built stock. I have a Kosdon I-300S (full 640 N/s) I am considering running in it. I realize that is a very uncommon motor nowadays, but thought maybe y'all could offer some feedback on flying this rocket with similar motors, say AT I-435 or J-350.

Thanks for any insights.

 

[waltr]

Do a simulation.
My guess is the rocket will be fine IF speed stays well below Mach, maybe Mach 0.6 as a maximum.

 

[mrwalsh85]

I've flown mine on a J350.. But I will disclose that I reinforced with coupler tubes nearly the full length of the airframe, and used tip to tip on the fins.

J570 with the ever unpopular "Bonus Delay" is what did it in.

- The Pad Manager trying to catch up is always entertaining to me...

 

[DeeRoc29]

I know I've done Kos 640 motors in my Vulcanite with no problem. I'd think the Hi-Tech would be okay with adequate nose weight.

 

[green dragon]

I know I've done Kos 640 motors in my Vulcanite with no problem. I'd think the Hi-Tech would be okay with adequate nose weight.

Ditto on the Vulcanite, including AT I435 and Kosdon.

I think the 2.6 tube is slightly thinner wall, but fins still 1/8 ply, if you built it well should be ok on the I300

 

[J Blatz]

Thanks Derek and Al!

 

[Rocketjunkie]

Mine has made 42 flights over the last 22 years on a variety of motors ranging from a G33 to H999.

Alt - motor --------- Date ------- Location
5374 I85 (38/720 D) 4/9/00 Orangeburg, SC Tracker taped to outside rocket
3615 I357 8/12/00 Orangeburg, SC
2777 H100hf (vulcan) 9-9-00 Orangeburg, SC
3150 H45 (38/360 D) 11-11-00 Orangeburg, SC
3099 H45 (38/360 D) 7-7-01 Orangeburg, SC
1234 G80 8-12-01 Orangeburg, SC
1220 G64 3-10-02 Orangeburg, SC
1071 G40 8-10-02 Orangeburg, SC
3314 I150 Ellis 12-8-02 Orangeburg, SC
1047 G64 6-7-03 Orangeburg, SC
3005 H153 Pro38 8-9-03 Orangeburg, SC
2088 H110 EX 7-11-04 Orangeburg, SC Separation, minor damage
1830 H73 1-9-05 Orangeburg, SC
10 G500 4-9-05 Orangeburg, SC Adapter failure, no damage
2078 H140 38/240 4-10-05 Orangeburg, SC
(unk) G64 5-22-05 Newington, GA Prang, repairable
(unk) G64 6-12-05 Orangeburg, SC Alt failure, destroyed
1823 G54 6-11-11 Orangeburg, SC New vehicle. Weight 39 oz on pad
2160 H210 7-3-11 Orangeburg, SC
3388 H999 9-4-11 Orangeburg, SC
2867 H55 (38/360 D) 11-12-11 Orangeburg, SC
3104 H45 (38/360 D) 11-13-11 Orangeburg, SC
4211 I49 1-8-12 Orangeburg, SC
2941 H268 9-1-12 Orangeburg, SC lots of chuffing
1867 H140 (38/240) 11-10-12 Orangeburg, SC
1882 H163 4-14-13 Orangeburg, SC
2310 H148 6-8-13 Orangeburg, SC
1034 H90 (38 2g EX) 7-5-14 Orangeburg, SC
2041 H90 (38-3g EX) 9-1-14 Orangeburg, SC
3206 I130 (38-4g EX) 9-1-14 Orangeburg, SC
1685 G138 10-11-14 Orangeburg, SC
4257 I55 4-11-15 Orangeburg, SC
1296 G200 (Vulcan) 11-14-15 Bunnell, FL
4192 I55 5-12-16 Rembert, SC
1061 G33 11-12-16 Rembert, SC
1089 G33 5-6-17 Rembert, SC
2804 H45 (38/360 D) 7-8-17 Rembert, SC In trees, found but recovered next week
2097 H100 (38/240 ex) 9-2-18 Rembert, SC Repaired
2033 H100 (38/240 ex) 2-9-19 Rembert, SC
1395 H87 (3g29) 3-17-21 Rembert, SC
2033 H250 (29/360 ex) 10-13-21 Dalzell, SC NEW FIELD!
2909 H200 (38/360 ex) 2-13-22 Dalzell, SC NEW FIELD!