AeroTech Open Thread

[cfb_rolley]

Would anyone happen to know what the thread size is on RMS 24/40 casings? Thought it might have been posted on this forum somewhere but haven't been able to find it through the search.

 

[AeroTech]

Would anyone happen to know what the thread size is on RMS 24/40 casings? Thought it might have been posted on this forum somewhere but haven't been able to find it through the search.

.900-48 UN-2

 

[cfb_rolley]

.900-48 UN-2

Legend, thank you!

 

[4regt4]

.900-48 UN-2

I went to the hardware store, and much to my surprise, they had those taps in the close out bin.

Hans.

 

[AeroTech]

Thanks, Gary.

I’m mainly hoping that the B14Ts will be available soon enough that they can be contest-approved by NAR for this year’s NARAM. If available they would be the best choice for one of the events.

We are trying to make that happen, and we will have additional information soon.

 

[BEC]

We are trying to make that happen, and we will have additional information soon.

Thanks Gary. I'm looking forward to it.

 

[pugachu]

Gary,

Will the new 75mm 'full M' casing be compatible with the 75mm RAS to put a shorter 75/7680 load in it?

Thanks

 

[AeroTech]

Gary,

Will the new 75mm 'full M' casing be compatible with the 75mm RAS to put a shorter 75/7680 load in it?

Thanks

Yes.

 

[AeroTech]

Thanks, Gary.

I’m mainly hoping that the B14Ts will be available soon enough that they can be contest-approved by NAR for this year’s NARAM. If available they would be the best choice for one of the events.

Please remind me of the availability deadline for NARAM contest certification. May 5th?

 

[BEC]

Please remind me of the availability deadline for NARAM contest certification. May 5th?

I don't know myself. @Johnly ?

Added: John doesn't have a date either. I have queried the contest board chairman.

 

[AeroTech]

I don't know myself. @Johnly ?

Added: John doesn't have a date either. I have queried the contest board chairman.

I was guessing 90 days before the first day of competition. 60 days would be better. But you would think that if they were available to all flyers at the time and location of the contest, that would be sufficient.

 

[BEC]

As I understand it, it's about how available the motors are (assuming, of course, they are certified). I'll relay the answer if/when I get one.

 

[4regt4]

Gary:

A humble product request.

I fly a lot of BT-60 sized rockets in several local fields. The fields are not real big, with trees around most sides. It's what I have to deal with, without traveling 4 hours to a larger launch site.

D sized motors are OK, but still sort of in the "ho-hum" catagory for these rockets. But a full E will risk overflying the fields. The total impulse of the E26 would be just perfect, except that only gives me 35-40-ish launch rod speed. I get better rod speed with either the D22 or 24/40 D15.

Request: Stuff some Blue Thunder in the E26 case. I'm sure the nozzle would be a total re-think, but it would be worth it. E26 altitude, with Blue Thunder attitude.

Hans.

 

[AeroTech]

Gary:

A humble product request.

I fly a lot of BT-60 sized rockets in several local fields. The fields are not real big, with trees around most sides. It's what I have to deal with, without traveling 4 hours to a larger launch site.

D sized motors are OK, but still sort of in the "ho-hum" catagory for these rockets. But a full E will risk overflying the fields. The total impulse of the E26 would be just perfect, except that only gives me 35-40-ish launch rod speed. I get better rod speed with either the D22 or 24/40 D15.

Request: Stuff some Blue Thunder in the E26 case. I'm sure the nozzle would be a total re-think, but it would be worth it. E26 altitude, with Blue Thunder attitude.

Hans.

Thanks for the suggestion. This would be doable with our new phenolic nozzle inserts.

 

[AeroTech]

As I understand it, it's about how available the motors are (assuming, of course, they are certified). I'll relay the answer if/when I get one.

They are now certified. I’ll post copies of the cert data soon.

 

[AeroTech]

Q-Jet B14T TRA certification. I think Bernard will like the specs.

 

[AeroTech]

RMS-75/3840 L2775ST-PS TRA certification. This motor was a suggestion here on TRF and a static test was featured in our virtual tour video during vNARCON 2024.

 

[AeroTech]

RMS-75/10240 M2700W-PS TRA certification. This motor was developed for the upcoming $10,000+ AeroTech Space Challenge contest.

 

[Rocketjunkie]

RMS-75/3840 L2775ST-PS TRA certification. This motor was a suggestion here on TRF and a static test was featured in our virtual tour video during vNARCON 2024.

I'll have to get one of these and compare it to the L3200 Vmax I still have

 

[BEC]

They are now certified. I’ll post copies of the cert data soon.

Great!

So......when can I buy some so I can do some instrumented flights?

I'm bouncing back and forth between theNAR Contest Board and NAR S&T trying to get the answer to your question about contest approval and any deadlines involved. I'll let you know when I get an actionable answer....

 

[3stoogesrocketry]

RMS-75/3840 L2775ST-PS TRA certification. This motor was a suggestion here on TRF and a static test was featured in our virtual tour video during vNARCON 2024.

This is awesome. Thank you so much for listening to your customers .

 

[jmasterj]

RMS-75/3840 L2775ST-PS TRA certification. This motor was a suggestion here on TRF and a static test was featured in our virtual tour video during vNARCON 2024.
View attachment 641565
View attachment 641566

Awesome! That's going on my purchase list. Any idea when it will be available?

 

[SolarYellow]

Q-Jet B14T TRA certification. I think Bernard will like the specs.

Hope your sales guys lean on AC Supply to take some of these early. And F41s, while they're at it.

 

[BEC]

Please remind me of the availability deadline for NARAM contest certification. May 5th?

Check your email. I forwarded the best answer I've gotten from several queries, this one from the NAR S&T secretary. It appears there is no deadline per se.

 

[AeroTech]

Thanks to Alan Whitmore and his team for their efforts in certifying these motors!

 

[AeroTech]

Awesome! That's going on my purchase list. Any idea when it will be available?

I can't give an exact answer but hopefully before LDRS.

 

[Theory]

RMS-75/3840 L2775ST-PS TRA certification. This motor was a suggestion here on TRF and a static test was featured in our virtual tour video during vNARCON 2024.
View attachment 641565
View attachment 641566

YES!!!! Awesome.

Thank you Gary and Aerotech

Can’t wait to fly this at Battlepark in Culpeper VA!

 

[pugachu]

RMS-75/3840 L2775ST-PS TRA certification. This motor was a suggestion here on TRF and a static test was featured in our virtual tour video during vNARCON 2024.

So now I have to buy two cases now, not just the 75/10240....

 

[3stoogesrocketry]

So now I have to buy two cases now, not just the 75/10240....

Well you need the 3 grain case as a booster motor for the big boy . See its all working out to plan lol

 

[eJar0k]

Of the two burns in the M2700W TMT cert document, which is closer to an average burn? I remember an earlier test putting out around 10300Ns, so I'm guessing we should use the 10600Ns one, right? Surprised they performed so differently.

By the way, it looks like that motor atop an O5500 could crack 100km... and Mach 5.