The yumi was the main weapon for the bushi until the 1530’s. The typical bow was around two point three meters in length and made of bamboo with a silk string and pine resin. The arrow was made of bamboo and feathers. Bamboo was the best material for ranging because it was easy to obtain and was very durable. Until the musket was discovered in the 17th century, the yumi was the most respected weapon to the bushi.
The Japanese long bow was around 7 feet long, much bigger than the yumi. The yumi was used in a standing position often from high altitudes, while the dai-kyu was used on horseback. A distinct advantage for this bow was it could fire farther. One tactic involved the archers to ride to the side, away from close combat and fire at the samurai. This was even more effective due to the fact the armor slowed the samurais from getting near enough to strike.