The E15 and E30 are the same size as a D12. Not sure about any other Aerotech motors, but I'm sure there are some, maybe an RMS casing.
The E15 and E30 are the same size as a D12. Not sure about any other Aerotech motors, but I'm sure there are some, maybe an RMS casing.
Assuming the J-350 in Rocksim is the right length, it would be sticking about halfway into the nosecone. Some other J motors may fit through.
Of course, you could cut the nosecone so the motor would fit, and pack the parachue around the motor...
I think that's 'price of admission' for this kind of modification. Mike Hoffman's L1 'Big Daddy' (it was a clone made with PML parts) had the 'chute in the nosecone, and I believe did his bashed Estes big daddy.
Perhaps the J460/J275/J90 casing (54/852?) or a Pro54 2-grain would be a better bet. Dunno if anyone does an even shorter 3" J...that would be cool. The Pro75 full L is 4 grains, making each grain a full J's worth, I'm sure I've read of EX motors in this config. (1-grain 75mm J)
Big Daddys on H & I motors is easy. It's the danged G that you lose 'em on... Voice of experience.
-Kevin
Aerotech E. Forget the estes E...
for all those who might want to see
Clear payload compartment designed to transport a fish. in link it is full of water
Estes Chute failed. only damage was one broken fin (kit stock)
Should this be in the FAQ?
Gary?
:)
Jerry
Dorsal Fin??
In article snipped-for-privacy@corp.supernews.com, Jerry Irvine at snipped-for-privacy@gte.net wrote on 5/16/05 2:01 PM:
Of course...now that they're available again.
Gary
Just found this, looks cool, seems appropriate to this thread :)
This past weekend, at the TCC Dairy Aire launch, one flyer put up a Big Daddy on a J800. Mind you, this was not an upscale, it was an actual size Big Daddy. Made entirely of fiberglass, no electronics (no room!), so it used motor ejection. Estimated altitude was 9000 feet. It used "reward recovery." A reward was offered for it's safe return. I'm proud to say that my daughter collected that reward. The Big Daddy was found about a half mile from the launch pad. One other unusual occurrence at the Dairy Aire launch was the blues band that played Saturday evening. Now, when was the last time you saw a band at a launch? TCC does it right! What a party!
James
"'Woody' Wood" wrote in message news: snipped-for-privacy@g14g2000cwa.googlegroups.com...
Balsal :)
July 4 approx 1987 Lucerne.
Point!
What website has Dairy Aire dates?
Videos? Photos? That is something I would *love* to see! Must have been one hell of a flight.
That sounds pretty cool too - blues and rockets, two of my favourite things :)
Wish I had pics... But that would be tough. That thing was doing close to 400 miles per hour when it cleared the rail! Rocket go bye-bye! If there were any pics taken of it, they will be published in the club newsletter. I would expect the Dairy Aire issue to be out in about a month. Watch at
James
That's the idea. I had to hack a hole in the nose for the chute on my F100 powered Big Daddy.
Bob Kaplow NAR # 18L TRA # "Impeach the TRA BoD" >>> To reply, remove the TRABoD!
Let me guess - the weight of an H or I keeps it from going too high, but the G is much lighter in relation to thrust?
Eldred
I think its just Murphy at play!
An H or I motor is likely to have a better mass fraction than a G motor, if that's what you mean?
Maybe its just because the H or I ones shred 50ft off the pad ;)
I600R in a Big Daddy, now that I'd like to see!
PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.