I believe Shuttle astronaut Jay Apt once took an Estes Alpha withDoes anyone know the highest altitude attained and/or the fastest speed attained using only cardboard tubing? (not composite wrapped)
The launch of sylvie369's Mini LOC IV on an F32 must have been way cool, but that sort of thing is not that unusual. MPR fliers do that sort of thing all the time. I don't know how many people have broken Mach with minimum diameter MPR models, but I'm sure that it has been done many times. Composite construction (or the use of phenolic) is very rare in MPR. Nearly everything is built from kraft paper tubing, plastic or balsa nose cones, and basswood or light plywood fins. We all knew all of this, though, right?
Does anyone know the highest altitude attained and/or the fastest speed attained using only cardboard tubing? (not composite wrapped)
I believe Shuttle astronaut Jay Apt once took an Estes Alpha with
him on a mission... So I'll say 17,500 mph (+/-) and 250 miles (+/-).
The highest flight of an all cardboard rocket I'm aware of was the LaserLOC 2.1EA flown by Deb Schultz. This was one of their LOC Custom Engineering kits and used their regular 54mm airframe, G10 fins, and a basswood nosecone. The single-use K250 back then actually tested as a low L, which is the reason for the asterisk since it was later reclassified and not eligible for the K record. I don't know what the actual speed was, but if I get a chance later I'll work it up in RASAero.
K *Deb Schultz K250 21,659 feet LDRS-XI
This was found at https://www.faqs.org/faqs/model-rockets/competition/
Mark
I've flown a stock airframe Binder Sentinel on a K1100T then turned around and flew it the next day on a research 54mm L1000. Held together through boost but it floated away when the main came out at a ~10,000 feet. Later that year flew a Binder cardboard airframe with glassed ply fins at Balls on another 54mm L. Started corkscrewing toward the end of the burn but held together and was recovered without damage. According to data ~M1.6.
I flew my scratch built rocket made of 3 inch dia. mailing tubes and 3/16 plywood on a J825 to 5837 ft. The data from the Perfectflite MAWD Alt. indicated a top speed of 1600 fps. I plan on trying a J570 in it next weekend.
If the data really indicated 1600fps, you need to get your MAWD checked out because it is giving you bogus numbers for that combo.
Dave Schultz has written a number of papers on the application of Kalman filters to barometric altimeter data.I thought I heard of a filtering program for the Baro based recording altimeters,
for this very purpose?
JD
If the data really indicated 1600fps, you need to get your MAWD checked out because it is giving you bogus numbers for that combo.
For a lightweight 3 incher, mach 1.4 isn't entirely out of the question on a J825R. I would slightly question it since it is coming from baro only, but it should definitely be supersonic by a decent margin.
Does anyone know the highest altitude attained and/or the fastest speed attained using only cardboard tubing? (not composite wrapped)
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